Complete Listing

Complete List of Online Presentations

Search Free Online Presentations

 

 

Results Per Page 

Early-Age Concrete Properties Measurements for Concrete Pavement Construction Operations and Traffic Opening (ACI Fall 2016 Convention, Philadelphia, PA)

Early-Age Concrete Properties Measurements for Concrete Pavement Construction Operations and Traffic Opening (ACI Fall 2016 Convention, Philadelphia, PA)
This session will promote best practices for obtaining the early-age concrete properties desirable for good concrete pavement performance based on reliable measurements instead of empirical evaluation, guessing estimates, or personnel experience.

Curing—Finish the Construction (ACI Fall 2015 Convention, Denver, CO)

Curing is an often-overlooked part of the concrete construction process. When planning for constructability, don’t forget to plan for curing. This course will be useful to all participants in concrete construction projects.

Concrete Consolidation in the 21st Century (ACI Spring 2016 Convention, Milwaukee, WI)

The purpose of the session is to show the audience how consolidation needs to be reconsidered for modern twenty-first-century concrete mixtures. The anticipated presentations will show the influence of concrete proportioning and workability on the consolidation energy necessary. The contributions will mainly focus on flowable concrete that is not yet consolidating. The main audience for the session is contractors, but concrete producers, materials suppliers, designers, architects, and scientists will also have interest in this session.

Advances in Test Methods to Evaluate Alkali-Aggregate Reactivity in Job Concrete Mixtures (ACI Spring 2016 Convention, Milwaukee, WI)

The principal objectives of the existing standard test methods for evaluating alkali-aggregate reactivity (AAR) in mortars and concrete is to identify the susceptibility of aggregates to undergoing alkali-silica reaction (ASR), to identify the effectiveness of supplementary cementitious materials (SCMs) in mitigating ASR, and quantify the suitable dosage level of SCMs in the concrete mixtures. However, these short-duration tests (the concrete prism test, mortar bar method test, accelerated mortar bar test, new concrete cylinder test, and new autoclave concrete prism test) have limitations in their ability to provide a direct measure of how a job’s concrete mixture might perform in the field over the long term. These sessions will shed light on developments in the areas of new test methods that are focused on assessing the alkali-silica reactivity potential of a job’s concrete mixture and new nondestructive test methods to evaluate the extent of damage in job concrete mixtures. Engineers, contractors, researchers, and students will benefit from learning about the latest research and test methods that will pave the way for a performance-based approach in specifying durability in concrete mixtures.

Concrete Pavement Construction (ACI Spring 2016 Convention, Milwaukee, WI)

Effective construction practices are essential to the long-term performance of the concrete pavement structure. This session reviews successful construction practices for a range of concrete pavements.

ACI 562 Concrete Repair Code, Applicability, and Use (ACI Spring 2016 Convention, Milwaukee, WI)

The objective of the session is to educate government code officials, licensed design professionals, owners, and contractors on the applicability and use of ACI 562-13, “Code Requirements for Evaluation, Repair, and Rehabilitation of Concrete Buildings and Commentary,” and the new ACI/ICRI “Guide to the Code for Evaluation, Repair, and Rehabilitation of Concrete Buildings” through practical examples.

Ground Limestone and Mineral Filler: Inert Fillers or Active Ingredients? (ACI Spring Convention, April 2016, Milwaukee, WI)

This session will explore whether ground limestone and mineral filler should be considered inert fillers or considered to contribute to hydration, strength, economy, and sustainability of concrete mixtures. This session will show how the use of ground limestone and mineral filler affects concrete properties and how mixture proportions can be optimized to take advantage of these materials.

Hot Topic Session II: New One-Way Shear Equations for the 318 Building Code, Is it Time? (ACI Spring 2016 Convention, Milwaukee, WI)

The basic one-way shear equations in the ACI 318 Building Code have not changed since 1971, while other codes in the world have made changes. The current code consists of over 17 different equations. There have been advances in the understanding of size effect, members without transverse reinforcement, and members with the light longitudinal reinforcement. Members of Joint ACI-ASCE committees 445 and 446, and ACI Subcommittee 318-A devoted a great effort in the last two decades to investigate the effectiveness and safety of the current 318 one-way shear design equations. Immediately after the 318-14 Code cycle, the above committees challenged the researcher and practitioner community to present proposals for new one-way shear design methods that are safer and more effective for possible incorporation into the 318-19 code cycle. To date, six proposals have been submitted. These proposals were first evaluated against the existing 445 experimental shear database and then implemented in a comprehensive design example database that includes slabs, beams, and columns with prestress and non-prestress. This session will present the result summary of these evaluations and give a chance to each proposal’s author to describe the advantages of their method over the current 318-14 equations. The discussions held at this Hot Topic Session will be used by 318-E and 318 as input into their deliberations on the next step for one-way shear design for the 318-19 Building Code. This will be followed with a period of Q/A and attendees’ input and feedback on the new approaches.

    • Part 1
      Presentations include:
      • New Look at One-Way Shear Design Approach – ACI 318-E Initiative by David H. Sanders, University of Nevada
      • Summary of ACI-ASCE 445 Activities on One-Way Shear Design Methods by Abdeldjelil Belarbi, University of Houston
      • Use of Design Database to Compare Design Approaches by Daniel A. Kuchma, Tufts University
      • One-Way Shear Design Method Based on a Multi-Action Model by Antoni Cladera, University of Balearic Islands; and Antonio Marí and Jesús Bairan, Polytechnic University of Catalonia
    • Part 2
      Presentations include:
      • One-Way Shear Design Method – A Unified Approach by Robert J. Frosch, Purdue University; Qian Yu, University of Pittsburgh; Zdenek P. Bazant and Gianluca Cusatis, Northwestern University; Mija H. Hubler, University of Colorado, Boulder; and Jialing Le, University of Minnesota, Minneapolis
      • One-Way Shear Design Method – Simplifying the ACI Shear Provisions by Evan C. Bentz, University of Toronto; and Michael P. Collins, University of Toronto
      • One-Way Shear Design Method – Unified Theory by UH-NTU Version by Thomas T.C. Hsu, University of Houston; and Yi-An

Concrete Bridges Built with Advanced Materials: Seismic Performance and Design Issues (ACI Spring 2016 Convention, Milwaukee, WI)

ACI Committee 341, “Earthquake-Resistant Concrete Bridges,” hosted a session on the seismic performance evaluation, design, and retrofitting of concrete bridges by using advanced materials such as shape memory alloy (SMA) in the form of reinforcing bar, wire, or strand; ultra-high-strength metals; ultra-high-performance cement composites; and nanosilica. The main objective of this session is to present results from recent research studies (experimental/numerical/analytical) and practical examples of application of advanced materials in reinforced concrete (RC) bridge piers, bents, or full bridges. This session is for practitioners, educators, and researchers.

Ground Limestone and Mineral Filler: Inert Fillers or Active Ingredients? (ACI Spring Convention, April 2016, Milwaukee, WI)

This session will explore whether ground limestone and mineral filler should be considered inert fillers or considered to contribute to hydration, strength, economy, and sustainability of concrete mixtures. This session will show how the use of ground limestone and mineral filler affects concrete properties and how mixture proportions can be optimized to take advantage of these materials.

Proportioning with Ground Limestone and Mineral Filler (ACI Spring Convention, April 2016, Milwaukee, WI)

This session will introduce the new document developed by ACI Subcommittee 211-N, "Guide to Proportioning Concrete Mixtures with Ground Limestone and Other Mineral Fillers," and provide case studies for ground limestone and mineral filler.

Precast Concrete Pavements (ACI Spring Convention, April 2016, Milwaukee, WI)

The production use of precast concrete pavement (PCP) has come a long way over the last 15 years. Since the first new-generation PCP projects were constructed during 2001, the technology has gained wider acceptance in the United States for rapid repair and rehabilitation of concrete pavements, as well as for heavily trafficked asphalt concrete pavements and intersections. Since 2001, many projects have been constructed and many advances have been made and continue to be made in the design, panel fabrication, and panel installation aspects of the technology. In the United States, the PCP technology is being used for intermittent repairs (full-depth or full-panel replacement) and for continuous applications (longer length/wider area rehabilitation) with service life expectations of at least 20 years for repairs and at least 40 years for continuous applications, without significant future corrective treatment.

This session, organized by ACI Committee 325, with support from the Federal Highway Administration (FHWA), will present the current developments and best practices related to PCP design, panel fabrication, and panel installation processes. In the first session, experts from several highway agencies, including Wisconsin DOT, will present the implementation details related to new PCP applications by their agencies.

Emerging Technologies in Civil Infrastructure (ACI Fall Convention, October 2015, Denver, CO)

The session’s aim is to highlight some of the current emerging industry technologies identified by SDC. This particular session will present overviews of newer curing technologies currently or soon to be impacting the concrete industry. They are in various stages of and directly involved in their implementation and further development.

Hot Topic Session: Constructability of Projects Designed for 100+ Year Service Life (ACI Fall Convention, October 2015, Denver, CO)

This Hot Topic Session addresses aspects of construction on projects that demand a 100+ year service life. The session will provide perspectives from the diverse set of players involved in these projects. This includes owners charged with balancing the requirements of the project with the expectations of the public; design engineers who must develop plans and specifications that must address the complexity of the structural, durability, and constructability requirements of the project; contractors who must implement these demands; and materials testing laboratories that need to validate the durability of the materials.

SHM Real-Life Applications (ACI Fall Convention, October 2015, Denver, CO)

Structural health monitoring (SHM) is a process aimed at providing actionable, accurate, and in-time information concerning structural health condition and performance of concrete structures. The information obtained from monitoring is generally used to plan and design maintenance activities, to increase the safety and to mitigate post-event consequences, to verify hypotheses, to reduce uncertainty, and to widen the knowledge concerning the concrete structure being monitored. While SHM benefits have great promise, SHM is still not applied in a widespread manner, and the end users are frequently reluctant to apply it.

The aims of this session are to pull together several examples of SHM real-life applications, raise awareness about how the SHM is applied, understand:
1. The overall behavior of concrete structure, and identify related challenges; and
2. To present case studies of SHM real-life applications and assess the corresponding SHM benefits, and present them to interested parties and broader public by presentations during the session.

Cementitious Materials for Nuclear Waste Storage and Disposal (ACI Fall Convention, October 2015, Denver, CO)

Cementitious materials have widespread use in nuclear waste storage and disposal applications, including waste form stabilization, dry storage structures, and repository applications, and in each application, the use of cement-based materials presents unique challenges. For cement-stabilized wastes and repository applications, the transport of radionuclides through the cementitious materials is of great concern, as certain radionuclides are highly mobile in high-pH pore fluid. For intermediate-term dry storage, thermal, radiation, and environmental loading can influence degradation of the portland cement concrete structures, which in turn impacts safe storage.

This session addresses the measurement and modeling of properties that will improve the understanding and prediction of the long-term structural, hydraulic, and chemical performance of cementitious materials used in nuclear waste disposal.

Design and Performance of Concrete Bridges and Buildings When Interacting with Soils and Foundations (ACI Fall Convention, October 2015, Denver, CO)

This special session will emphasize the design and performance of concrete bridges and buildings with consideration for interaction with soils and foundations, including deep or shallow foundations. Given soil structure interaction as being a critical factor in the design of most buildings and bridges, a technical forum is needed to exchange current knowledge and develop research needs. Presentations will encompass a wide variety of technical issues such as the effect of differential settlement on the behavior of structures, backfills for bridge abutment, and earthquake-induced responses of structures. Both experimental and analytical investigations are of interest. The session brings to light recent research findings and provides an opportunity to discuss present challenges and technical issues. Critical information is provided to those who lead tomorrow’s structural design and construction in conjunction with soils and foundations, including practicing engineers, government officials, and academics.

Legacy of Per Fidjestøl (ACI Fall Convention, October 2015, Denver, CO)

Per Fidjestøl was a pioneer in the concrete industry. An ACI Fellow and Honorary ACI member, Fidjestøl spent 45 years in the concrete industry. During the tenure of his concrete career, Fidjestøl contributed to the development of high-performance concrete incorporating silica fume for sustainable construction. The purpose of this session is to honor both the legacy of Per Fidjestøl’s early work with concrete and highlight some of the current state-of-the-art research. Ultimately, the technical session is designed to celebrate the 45 years that Fidjestøl contributed to advancing the sustainable development of concrete structures. We celebrate not only his involvement in new concrete technologies but also how he educated the industry. Whether through his many appearances at conferences across the world or as a Professor at the University of Agder, Fidjestøl helped cultivate and refine a new generation of concrete scientists and engineers.

ABC Connections for Seismic-Resistant Design (ACI Fall Convention, October 2015, Denver, CO)

ABC connections for concrete bridges are becoming more common in practice. It is the goal of this session to assess the current state of the art in research and practice regarding the use of ABC connections for the seismic design of concrete bridges.

Cement-Admixture Interaction (ACI Fall Convention, October 2015, Denver, CO)

The session will discuss various test methods that can be used to evaluate early stiffening of cement paste or mortar to anticipate complex cement-admixture interactions. The session will also highlight recent findings aiming at understanding the physical and chemical phenomena affecting the adsorption of chemical admixtures on binder materials and the resulting effects on fresh and hardened properties of concrete. The session should be of interest to researchers, concrete engineers, material suppliers, and students dealing with modern materials design and construction. Attendees will become aware of recent advances in testing techniques and governing mechanisms affecting cement-admixture interaction.

BIM for Cast-in-Place Concrete (ACI Fall Convention, October 2015, Denver, CO)

The objective of the session is to inform ACI members of the progress made by ACI Committee 131 on developing open information exchange between various software products used in the concrete supply chain. The information delivery manual (IDM) and model view definitions (MVD) developed by the committee will be presented and explained. A presentation will also be made of state-of-the-art applications of BIM in the concrete supply chain.

Deflections and Construction Tolerances: The Good, the Bad, and the Ugly (ACI Fall Convention, October 2015, Denver, CO)

Demands for thinner, lighter structures, coupled with advances in material strengths, construction techniques, and structural analysis software, make serviceability an increasingly important limit state for modern concrete buildings and bridges. This session tackles concrete issues related to deflections, particularly through the lens of constructability. The session will highlight project successes and misfires and delve into reasons leading to the outcomes.

Resilient Housing (ACI Spring Convention, April 2015, Kansas City, MO)

This session will explore the topic of resilience as it pertains to the homes we live in and the communities they create. Attendees will come away with a greater understanding of economic and societal impacts of less durable housing, what it means to be resilient, and ways to create better buildings with concrete systems. New research into measuring the resilience of a home will link the use of concrete materials and systems to sustainable, longer-lasting structures. It will also detail the ways in which specific weather events such as high winds and storm surge can affect the built environment. Attendees will hear about protective measures for creating hazard-resistant housing using concrete building solutions. Case studies of real-world concrete homes subjected to severe weather will examine their design, construction, and performance to demonstrate that current technology exists to prevent this type of damage.

Use of High-Strength Concrete in Tall Buildings (ACI Spring Convention, April 2015, Kansas City, MO)

The objective of the session is to inform practitioners and engineers on the use of high-strength concrete (HSC) in tall buildings. There has been a significant amount of research regarding the development of HSC, but the learning outcomes of this session include topics related to the delivery, placement, testing (including in-place), and case studies of HSC in tall buildings.

Ternary Blends and More (ACI Spring Convention, April 2015, Kansas City, MO)

This session looks at the use of multiple blends of cementitious materials used for designing durable and ultradurable concretes. The use of ternary and quaternary blends to achieve long-term lifetimes, and thus lower environmental impact, will be discussed.

Influence of Admixtures on Early-Age Properties (ACI Spring Convention, April 2015, Kansas City, MO)

The objective of this session will be to address the influence of chemical and mineral admixtures on the early-age properties of concrete, mortar, and grout. The session will educate practitioners on methods to measure early shrinkage, and to examine the effect of admixtures on early-age properties.

Recent Updates to Blast Design Guidance (ACI Spring Convention, April 2015, Kansas City, MO)

In this session, recent updates to blast design guidance will be presented. The session will focus on new criteria incorporated in “Structures to Resist the Effects of Accidental Explosions,” UFC 3-340-02, Change 1 (2014). These criteria include a major revision to the UFC’s analysis and design procedures for reinforced and unreinforced masonry walls and a new testing protocol and performance requirements for mechanical splices that will, for the first time, permit their use on certain explosives safety applications. In addition, recent research will be presented on the performance of concrete elements under blast loading.

Pumpability of SCC (ACI Spring Convention, April 2015, Kansas City, MO)

This session intends to inform concrete producers, contractors, academics, and students on the latest developments, common practices, and problems associated with pumping of self-consolidating concrete (SCC). The session focuses on selecting materials and optimizing mixture design to ensure adequate pumping of SCC. Practical experiences on the quality control of SCC for the construction of the Burj Khalifa, as well as the influence of SCC fresh properties on changes in the air void system due to pumping are discussed. The latest theoretical developments on prediction of pumping pressure, influence of constituent elements, and the changes in fresh concrete properties are also presented.

Building Resiliency (ACI Spring Convention, April 2015, Kansas City, MO)

The Road to Resilience lies in adapting. Cities, towns, and communities, working with the construction industry, continue to rebuild and prevent against the challenges that face our buildings—both from natural disasters and aging structures. These presentations offer knowledge that stricter standards and design elements can go a long way to reaching our goal of being “resilient.”

Rational Approaches for Fire Resistant Design of Concrete Structures (ACI Spring Convention, April 2015, Kansas City, MO)

This session provides an opportunity for researchers, architectural/civil/structural engineers, and students to exchange recent advances in applied research and to share information, experiences, and knowledge in the implementation of rational design approaches for determining the fire resistance of a range of concrete structures.

Form Pressure of Self-Consolidating Concrete—Hydrostatic or Not? (ACI Spring Convention, April 2015, Kansas City, MO)

This technical session will highlight recent advances carried out to understand key factors affecting formwork pressure of SCC, including concrete thixotropy, casting rate, and formwork characteristics. The session will highlight various models that have been developed to estimate form pressure characteristics of SCC. A number of field-related projects targeting the calibration of various models are discussed. The session should be of interest to designers and construction professionals dealing with SCC technology, as well as researchers and educators interested in the science behind the control of form pressure.

Heavy-Duty Concrete Pavements (ACI Spring Convention, April 2015, Kansas City, MO)

Heavy-duty pavements span a wide variety of uses, from truck distribution facilities, to intermodal yards, to military equipment hardstands, to high-volume interstates. These pavements can be subjected to extremely high axle loadings, millions of heavy vehicle load repetitions, high-speed truck traffic, or all of these. Designers and contractors must understand the unique requirements of these pavements, and use appropriate design tools, specification provisions, and construction techniques to properly design and build the pavements for their expected service lives. Concrete pavements are ideally suited for these applications because of their rigidity, strength, and durability. However, different types of concrete pavements, including conventional jointed pavements, roller-compacted concrete (RCC), and precast, may be optimal choices depending on the circumstances.

Advances in Pervious Concrete (ACI Fall Convention, October 2014, Washington, D.C.)

This session focuses on disseminating the advances that have happened in the field of pervious concretes, in material design, proportioning, properties, standards development, and field applications.

Self-Consolidating Concrete for Precast/Prestressed Applications (ACI Fall Convention, October 2014, Washington, D.C.)

The hardened properties and performance of self-consolidating concrete (SCC) developed for use in precast prestressed applications will be discussed. Presentations will specifically focus on SCC mechanical properties, durability, time-dependent behavior, structural behavior, and case studies that document the use of SCC in full-scale precast prestressed applications.

James K. Wight: A Tribute from His Students and Colleagues (ACI Fall Convention, October 2014, Washington, D.C.)

This session is aimed at disseminating information related to past and current research on behavior of reinforced concrete flexural members and walls, as well as on structural collapse.

Sustainable Performance of Concrete Bridges and Elements Subject to Aggressive Environments: Monitoring, Evaluation, and Rehabilitation (ACI Fall Convention, October 2014, Washington, D.C.)

This session will emphasize the sustainable performance of concrete bridges and their elements when subjected to aggressive environments. Presentations will include a variety of technical aspects such as durability of concrete members, performance monitoring technologies, evaluation methodologies, damage assessment, and structural rehabilitation. Both experimental and analytical investigations are of interest. The session brings to light recent research findings and provides an opportunity to discuss present challenges and technical issues. Critical information is given to those who lead tomorrow’s bridge design and construction, including practicing engineers, government officials, and academics.

Celebrating 100 Years of John Joseph Earley and the Earley Studio Work (ACI Fall Convention, October 2014, Washington, D.C.)

This session will be dedicated to M. K. (Mary Krumboltz) Hurd, The Woman Who Formed Concrete. Architectural concrete and ACI pioneer John J. Earley left a legacy of distinctive work throughout the United States, but nowhere more than in Washington, DC. These sessions will present some of the outstanding Earley Studio projects in the nation’s capital and other parts of the country. The history of John J. Earley’s innovation will highlight distinctive features at Meridian Hill Park, the Shrine of the Sacred Heart, the Polychrome Houses, and the Franciscan Monastery of the Holy Land in America. These spectacular projects illustrate the revolutionary work done in concrete nearly 100 years ago. You will be amazed by concrete’s resilience and aesthetic durability.

Structural Health Monitoring of Concrete Structures (Durability)—Tribute to Richard Weyers (ACI Fall Convention, October 2014, Washington, D.C.)

Sponsored by ACI Committees 444, Structural Health Monitoring and Instrumentation; 209, Creep and Shrinkage in Concrete; 222, Corrosion of Metals in Concrete; 345, Concrete Bridge Construction, Maintenance and Repair; 348, Structural Reliability and Safety; 365, Service Life Prediction; 435, Deflection of Concrete Building Structures; and Joint ACI-ASCE Committees 343, Concrete Bridge Design, and 441, Reinforced Concrete Columns.

Emerging Technologies in Civil Infrastructure (ACI Fall Convention, October 2014, Washington, D.C.)

The goal of the ACI Foundation’s Strategic Development Council (SDC) is industry-wide collaboration to address the concrete industry’s technological challenges and to create a forum for the introduction and nurturing of new technologies. This session highlights issues of importance in the concrete industry and overviews of newer technologies currently or soon to be impacting the concrete industry. The presentations are by individuals who are both well-versed in the specific issue or technology and directly involved in their implementation and further development.

Aggregate Optimization and Packing (ACI Fall Convention, October 2014, Washington, D.C.)

The mechanical properties of portland cement concrete, such as mechanical strength, modulus of elasticity, creep, and shrinkage, greatly depend on the properties of their main constituent: the aggregates. Packing density, compaction degree, particle size, and spatial distribution of aggregates affect the macromechanical behavior of concrete. This session will discuss how better aggregates’ packing and optimal distribution can improve the performance of concrete.

The ACI 562 Code (ACI Spring Convention, March 2014, Reno, NV)

The development, approval, and adoption of the ACI 562 Code for Evaluation, Repair and Rehabilitation of Existing Concrete Structures represents a milestone in the concrete repair industry. For the first time, a code has been developed to specifically address and provide code requirements for the repair of existing concrete structures. The session will describe key features of ACI 562, describe the process for adoption of ACI 562 into general building codes, and present the process for ongoing development of ACI 562.

Contractors’ Day Session: Bridges that Endure (ACI Spring Convention, March 2014, Reno, NV)

Concrete Bridges in the region face numerous obstacles to endure: seismic loading, severe climatic conditions, marine environments, and high wind loading. Learners will hear how each of these obstacles was overcome for two signature bridge projects in Nevada and California.

Seismic Assessment of Existing Reinforced Concrete Buildings (ACI Spring Convention, March 2014, Reno, NV)

ACI Committee 369 is working with ASCE Committee 41 on the state of the art of seismic assessment of reinforced concrete buildings. These sessions will present potential updates for ASCE 41 and summarize work done by committee members on modeling parameters and acceptance criteria for concrete components, including columns, joints, and walls. Example applications of ASCE 41-13 to existing concrete buildings will also be presented. This session will be of value to practicing engineers engaged in seismic retrofit projects using ASCE 41.

Proportioning of Mixtures for Concrete Pavements (ACI Spring Convention, March 2014, Reno, NV)

This session will provide insight into current developments regarding mixture design and proportioning, specifically for concrete pavements. The session will include discussions of current issues and innovations related to mixture design, including use of self-consolidating mixtures, optimization of aggregate gradation, handling of various durability situations, and mixture component incompatibilities. The speakers have different backgrounds and come from material suppliers, associations, consulting, and academia.

Current Practices in Online Learning (ACI Spring Convention, March 2014, Reno, NV)

This session will provide information on the most current practices related to online learning to include webinars; online courses for credit; and hybrid courses where students view course material online, then work on problems during class.

Unconventional Reinforced Concrete Bridge Columns (ACI Spring Convention, March 2014, Reno, NV)

New trends in innovative design and construction of unconventional concrete columns will be presented to promote advancement in this important application. The sessions will include the use of innovative materials, new confinement techniques, and fiber-reinforced concrete. It also includes varying the loading patterns and the geometry of the columns.

Monitoring for Cold Weather Concreting (ACI Spring Convention, March 2014, Reno, NV)

The current model for cold weather concreting operations is based on the Thermos Concept–make the concrete hot and then keep it hot. The bulk of the technical aspects of the current ACI 306 document are based on work done over 30 years ago. The practice of cold weather concreting has changed significantly since that time. The changes in cement chemistry and fineness, the widespread use of slower-reacting materials in the interest of sustainability, as well as the ubiquity of the Internet and electronic sensors needs to be incorporated into the revisions to the guide to cold weather concreting as well as to the specification currently under development.

Hydration of Low Portland Cement Binders: Industry Experience and Needs (ACI Spring Convention, March 2014, Reno, NV)

This session will showcase new advances in experimental, theoretical, and computational tools for characterizing cements, IBPs, natural minerals, and hydration and microstructure development in low-cement-content concrete binders. The technical content should be of great interest to both the academic and industrial community and of special interest to those involved in sustainable materials design and development, those who specify binder materials to be used in construction, and those who promulgate standards and codes for using low-cement-content concretes.

Hot Topic Session: Moisture in Concrete Slabs (ACI Spring Convention, March 2014, Reno, NV)

Due to several changes in the construction market, including EPA regulation changes to the allowable VOC content in adhesives and the rise of fast-track construction projects, moisture-related flooring failures have become more prevalent in concrete slab construction. In response, contractors have been seeking ways to combat these problems without impacting construction schedules. The panelists, including a general contractor, vapor-barrier manufacturer, national consulting firm specializing in moisture testing, and a national flooring consultant, will provide a 360-degree view of this important topic.

Seismic Assessment of Existing Reinforced Concrete Buildings—New Developments (ACI Spring Convention, March 2014, Reno, NV)

ACI Committee 369 is working with ASCE Committee 41 on the state of the art of seismic assessment of reinforced concrete buildings. These sessions will present potential updates for ASCE 41 and summarize work done by committee members on modeling parameters and acceptance criteria for concrete components, including columns, joints, and walls. Example applications of ASCE 41-13 to existing concrete buildings will also be presented. This session will be of value to practicing engineers engaged in seismic retrofit projects using ASCE 41.

UHPC Innovations for Durability and Resiliency (ACI Fall Convention, October 2013, Phoenix, AZ)

This session will give an overview about the superior durability performance of UHPC in comparison to normal-strength concrete; present innovative applications for the use of UHPC for long-term solutions; and provide innovation solutions to further improve its durability in the cracked state, such as self-healing UHPC. Enhanced long-term durability and resiliency of UHPC will directly address the current issues of the U.S. infrastructure.

A Fresh Look at Cementitious Materials and Admixtures (ACI Fall Convention, October 2013, Phoenix, AZ)

These presentations include an introduction and overview of the revised documents E3, “Cementitious Materials for Concrete,” and E4, “Chemical Admixtures for Concrete,” developed by Education Committee E701, Materials for Concrete Construction. E3 discusses portland, blended, and other hydraulic cements, along with supplementary cementitious materials such as slag cement, fly ash, and silica fume. E4 covers air-entraining admixtures, water-reducing and set-controlling admixtures, as well as specialty admixtures for various specific applications. Since these documents are intended for users and students, the information is presented in a more practical and instructive format than their technical committee counterparts.

Concrete with Recycled Materials (ACI Fall Convention, October 2013, Phoenix, AZ)

This session provides an avenue for attendees to learn more about innovative sustainable approaches in the field of recycled concrete. Concrete recycling is an increasingly common method of using different waste materials. Concrete was once routinely trucked to landfills for disposal, but recycling has a number of benefits that have made it a more attractive option in this age of greater environmental awareness, more environmental laws, and the desire to keep construction costs down.

Electrical Methods to Characterize and Monitor Concrete (ACI Fall Convention, October 2013, Phoenix, AZ)

Electrical methods such as surface resistivity, bulk resistivity, and electro-impedance spectroscopy are becoming more prominent to monitor concrete condition in laboratory and field applications, as illustrated through increased interest from infrastructure management agencies and the commercial availability of testing equipment sets. This session will present recent advances of such technology with potential application to nondestructive testing (NDT) and in-place structural monitoring for concrete.

Conservation of Historic Concrete (ACI Fall Convention, October 2013, Phoenix, AZ)

Conservation of concrete has become more important as some of the world’s most significant concrete structures continue to age and deteriorate. This session will discuss innovations in conservation of historic concrete and will review approaches, repair options, and techniques for repair of historic concrete structures, some dating back to the late 1800s.

Structural Concrete Design - The Legacy of Dr. W. Gene Corley (ACI Fall Convention, October 2013, Phoenix, AZ)

Dr. W. Gene Corley, a long-time member of ACI, passed away March 1, 2013. He was a former Chair of ACI 318 and a member of the Committee for over 40 years. This session will provide a retrospective on his contributions to research, forensic engineering, the structural engineering profession, and the ACI 318 Structural Concrete Building Code.

Certification for QC/QA (Proceedings of the Eighth International Workshop October 18-19, 2013, Phoenix, AZ)

Beyond Structural Concrete in the Americas - Proceedings of the Eighth International Workshop October 18-19, 2013, Phoenix, AZ.

Adhesive Anchors (Proceedings of the Eighth International Workshop October 18-19, 2013, Phoenix, AZ)

Beyond Structural Concrete in the Americas - Proceedings of the Eighth International Workshop October 18-19, 2013, Phoenix, AZ.

Proportioning Concrete Mixtures for Use in the 21st Century (ACI Spring Convention, April 2013, Minneapolis, MN)

This session will present the modern methods of mixture design currently in use. The absolute volume method, presented for almost 60 years, is little used in the industry. Designing mixtures using marginal and nontraditional materials for sustainable, performance, and economic reasons has led to the development of other mixture proportion techniques. The presentations will be made by practitioners who design and proportion mixtures on a daily basis to meet the needs of the designer, placer, and finisher.

Early-Age Properties of Repair Binders (Lab, Field, and Test Methods) (ACI Spring Convention, April 2013, Minneapolis, MN)

The success and durability of many concrete repair projects depend on the early-age bond, strength development, modulus development, and dimensional stability of repair binders. Common repair methods that use these materials include concrete patching, overlays, and sprayed concrete. This session will focus on the early-age properties of new and innovative repair binders as determined by laboratory evaluation, field tests, and experience. New test methods for early-age properties of repair material will also be discussed.

Concrete in Historic Structures (ACI Spring Convention, April 2013, Minneapolis, MN)

The main objective of this session is to present a broad perspective on the important issues related to historical structures.

Current Research in Concrete Pavements (ACI Spring Convention, April 2013, Minneapolis, MN)

This session provides insight into current research regarding concrete paving. The intended audience includes decision makers, engineers, material suppliers, public agencies, and contractors. The session includes discussion of current issues and innovations related to concrete pavement design, construction techniques, environmental challenges, quality control equipment, and the use of new materials.

Responsibilities of the New Concrete Professional (ACI Spring Convention, April 2013, Minneapolis, MN)

This session will provide students who are about to join the practice of engineering and young professionals just starting out with tools to help them meet their responsibilities as new professionals.

Portland-Limestone Cements: A Technology to Improve the Sustainability of Concrete (ACI Spring Convention, April 2013, Minneapolis, MN)

The construction products of tomorrow will require not only durability but also sustainability. Buildings and infrastructure will be measured by cost, quality, and environmental impact. Portland-limestone cements are products that can help the concrete industry achieve its goal of concrete being the product of choice. This session will cover the past, present, and future of limestone cements.

Hot Topic Session: Responsibility in Concrete Construction (ACI Spring Convention, April 2013, Minneapolis, MN)

The responsibility and authority for concrete construction works is sometimes not as clear as we would like. ACI Committee 132, Responsibility in Concrete Construction, has prepared a session to discuss the duties and authorities of all parties on a construction project. Perspectives from many of the parties will be given in short presentations followed by a panel discussion with the attendees.

In Honor of Dick Stehly: Increased Beneficial Use of Fly—History, Accomplishments, and Challenges (ACI Spring Convention, April 2013, Minneapolis, MN)

This session is intended to honor the significant contributions of ACI Past President Dick Stehly with regard to increasing the beneficial use of fly ash in concrete in the United States. The session will provide a perspective on fly ash use from the vantage point of different stakeholders and will provide a historical and forward-looking perspective on issues related to increased beneficial use of coal fly ash in portland-cement concrete.

Field Measurements of Form Pressure Exerted by Self-Consolidating Concrete (ACI Spring Convention, April 2013, Minneapolis, MN)

These presentations will report on the latest information regarding the measurement of lateral pressure exerted by self-consolidating concrete (SCC). Examples include extensive field studies carried out on shear walls, column, and wall elements in building construction and infrastructure rehabilitation projects. Comparison between field measurements and various design models, including those proposed in ACI 347, CSA A23.1, and DIN, will be highlighted. Fresh concrete properties affecting formwork pressure and the decay in pressure until pressure cancelation are highlighted, and new test methods that can be used to evaluate these characteristics are illustrated.

Innovative Structural Slab Practices (ACI Spring Convention, April 2013, Minneapolis, MN)

Innovative structural slab construction practices have taken the efficiency of traditional slab systems to new heights. This session discusses state-of-the-art practices in voided-slab technology construction. The concept centers on removing “concrete” from the middle of the slab where it is not structurally efficient, reducing the dead load by as much as 35% and thus allowing for large clear spans and efficient overall slab thicknesses. Several projects currently under construction in the United States will be discussed as case studies.

Emerging Technologies (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The “Emerging Technologies” Technical Sessions will focus on new and innovative materials and technologies that are currently being implemented in the concrete construction industry. Presentation topics include introduction of portland-limestone cement in Canada; advances in the evaluation of long-term concrete durability; and successful application of new approaches to concrete condition assessment, repair, and rehabilitation. Speakers will discuss materials and technologies with potential to increase the sustainability of concrete. The session, organized by the local convention committee, will include a Canadian perspective from industry, academic, and public agency representatives.

Part 1:

Part 2:

Introduction to the Concrete Repair Code (ACI 562) Webinar

In this 1-hour webinar cosponsored by ACI and ICRI, Lawrence F. Kahn (past Chair of ACI Committee 562, Evaluation, Repair, and Rehabilitation of Concrete Buildings) and Keith Kesner (Chair of ACI Committee 562) present a 1-hour overview of the development and organization of the new ACI 562 concrete repair code. The webinar includes an overview of the contents, reasons for and motivation behind the development of the Repair Code, the overall philosophy and organization of the material, and the future direction of the Repair Code and related educational material development.

View webinar recording      Download the PDF
Presenters:

    • Lawrence F. Kahn, Professor of Structural Engineering, Georgia Institute of Technology
    • Keith Kesner, Senior Associate, WDP & Associates, P.C. (WDP), South Norwalk, CT

Advancements in the Use of Building Information Modeling (BIM) Systems (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The Building Information Modeling (BIM) session will demonstrate a general acceptance of this new technology within the architectural/engineering/construction (AEC) industry as the way forward in the full integration of design, construction, and facilities management. Presentations will include examples of successful implementation into real-life projects—to move beyond viewing BIM as a standalone documentation approach.

Joint KCI-ACI Session: International-Level Research, Practice, and Partnerships (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The Korea Concrete Institute (KCI), in collaboration with ACI, will host a panel of international experts in the fields of mega concrete structures, high-performance technologies, and historical and stateof- the-art perspectives on structural concrete. KCI intends to promote international partnership and collaboration as well as inform participants on the historical and latest breakthroughs related to concrete and concrete design codes by presenters from Asia, North America, and other continents. Researchers and engineers who attend will have the opportunity to learn more about recent exciting progress of international-level research and practice.

Analysis and Design Issues in Liquid-Containing Structures (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The objective of this session is to present the latest analytical procedures, experimental findings, and construction practice issues related to liquid-containing structures (LCS). In these structures, issues related to crack and leakage control criteria under hydrostatic and seismic loading are of main concern. An improved understanding of the behavior of these types of structures is necessary to ensure safe and cost-effective standards. As such, simplified design procedures based on performance criteria can be developed to design and construct LCS efficiently and economically.

Means and Methods of Evaluating Reinforced Concrete Structures (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The main objective of this session is to present a broad perspective on the important issues related to the evaluation of concrete structures.

The Economics, Performance, and Sustainability of Internally Cured Concrete (ACI Fall Convention, October 2012, Toronto, ON, Canada)

In recent years, significant advancements have been made to use internal curing not only to mitigate autogenous shrinkage but also to enhance the in-place concrete performance. The objectives of this session are to assess the economics, performance, and sustainability of internal curing in various concrete applications. The following topics will be covered: mixture proportioning, internal curing methods, hydration impacts, volume change effects, mechanical properties, durability aspects, life-cycle cost analysis, impact on sustainability, and case studies that document the use of internal curing.

Part 1:

Part 2:

Part 3:

Shrinkage-Compensating Concrete—Past, Present, and Future (ACI Fall Convention, October 2012, Toronto, ON, Canada)

Shrinkage-compensating concrete is made with an expansive cement or expansive component system in which initial expansion can offset strains caused by drying shrinkage. It can reduce or eliminate cracking due to drying shrinkage. In this manner, shrinkage-compensating concrete can increase the durability of concrete structures, meet serviceability requirements, and meet performance-based specifications. This session will highlight current developments in shrinkage-compensating concrete—presenting new research in shrinkage-compensating concrete—and discuss how shrinkage-compensating concrete can meet the future needs of our industry.

Part 1:

Part 2:

Reinforced Concrete Columns with High-Strength Concrete and Steel Reinforcement (ACI Fall Convention, October 2012, Toronto, ON, Canada)

Practicing engineers increasingly favor the use of high-strength concrete and reinforcement in their design. However, the use of very-high-strength materials is currently limited by ACI and in many parts of the world, specifically in high seismic regions. This session will include recent research and engineering applications of high-strength materials.

Part 1:

Part 2:

Emerging Technologies in the Concrete Industry (ACI Fall Convention, October 2012, Toronto, ON, Canada)

This session will present overviews of newer technologies currently or soon to be impacting the concrete industry. They are in various stages of development with various levels of implementation. The presentations are by individuals both well-versed in these technologies and directly involved in their implementation and further development.

The Art of Designing Ductile Concrete in the Past 50 Years: The Impact of the PCA Book and Mete A. Sozen (ACI Fall Convention, October 2012, Toronto, ON, Canada)

These sessions aim to disseminate information related to the development and evolution of design philosophy and detail earthquake-resistant concrete buildings in the past 50 years. Given the fact that many fundamental principles of earthquake-resistant design of concrete structures were first laid out in Design of Reinforced Concrete Buildings for Earthquake Motions, a 1961 PCA book by Blume et al., emphasis will be placed on the role this book had on subsequent design practice. Also, as a key participant in these developments as a researcher and educator, as well as a champion promoter of the design principles set forth in this book, the proposed sessions also aim to highlight the role of Professor Mete A. Sozen in shaping current design practice for earthquake-resistant concrete construction.

Part 1:

Part 2:

Site Casting New Form: Inspiring Function to Respond (ACI Fall Convention, October 2012, Toronto, ON, Canada)

The site-cast method of forming, casting, and erecting precast buildings in what is more commonly known as tilt-up has matured worldwide to staggering displays of form that challenge modern designers to see function in new light. Tilt-up is evolving a new architectural style unique to its own brand of construction.

Introduction of Revised Specification for Shotcrete and Other Shotcrete Development (ACI Spring Convention, March 2012, Dallas, TX)

This session will introduce the revised “Specification for Shotcrete” and discuss coordination of the guide to the specification. Other ACI Committee 506, Shotcreting, projects will also be discussed.

The Art of Thermal Mass Modeling for Energy Conservation in Buildings (ACI Spring Convention, March 2012, Dallas, TX)

Energy efficiency concerns are driving material selection decisions as designers and building developers embrace green building strategies like never before. This session reviews the design process as it relates to energy modeling tools and how thermal mass and construction system selection are integrated into the design process. It identifies and describes appropriate simulation tools that integrate concrete and masonry construction into building design to optimize energy efficiency. Case studies that address computer modeling programs and thermal mass will be presented. The energy modeling process and several modeling methods will be explained. Specific attention will be given to how and where thermal mass was integrated into the design.

Part 1:

Part 2:

International Session, Structural Concrete: An Art Form (ACI Spring Convention, March 2012, Dallas, TX)

Tying into the convention theme, this session will review the work of some eminent pioneers and present protagonists of the art of concrete construction, followed by a discussion of the recent trend to merge architecture and structural engineering. Emphasis is placed on new visions and instruments in the domains of morphogenesis and the computational optimization of structures. The session is also tied into the International Lunch Lecture, which is devoted to the presentation of Pier Luigi Nervi’s work.

Concrete Columns in High-Rise Buildings (ACI Spring Convention, March 2012, Dallas, TX)

Designers face a different set of requirements—one that is beyond strength and serviceability requirements— when designing columns in tall buildings. Designers face challenges such as optimizing column size under the heavy loads of tall buildings, long-term time-dependent deformations, using high-strength and high-performance concrete, and the effect of the second-order deformation. This session is intended to address issues that concern engineers involved in the design and construction of tall buildings. Researchers and professionals involved in code development will also benefit from the topics discussed.

Design and Construction of Concrete Tanks for Refrigerated Liquefied Gas Containment (ACI Spring Convention, March 2012, Dallas, TX)

This comprehensive session on the design and construction of concrete tanks for refrigerated liquefied gas containment with a primary focus on large-scale LNG tanks. The sessions will start with an introduction to concrete LNG and RLG tanks and move into detailed coverage of the provisions of the new ACI 376 Code Requirements for Design and Construction of Concrete Structures for the Containment of Refrigerated Liquefied Gases and Commentary. Finally, the session will include presentations on the construction of several concrete LNG tanks around the world.

Part 1:

Part 2:

Physical Salt Attack on Concrete (ACI Spring Convention, March 2012, Dallas, TX)

The focus of these presentations is on concrete deterioration due to the crystallization of salts (for example, sodium sulfate and sodium carbonate) in pores near drying faces/evaporative zones. The scope involves theoretical, experimental, and modeling aspects and field case studies from geographic locations, such as hot, arid environments, where this damage mechanism is a significant concern. This session should be of particular interest to concrete practitioners and researchers.

Total Water Control (ACI Spring Convention, March 2012, Dallas, TX)

The presentations will focus on practical aspects and technologies to improve concrete water control during production, delivery, and finishing and the impact of water control on concrete production costs, project costs, and overall job quality.

Architectural Concrete in Hot Weather (ACI Spring Convention, March 2012, Dallas, TX)

Hot weather concreting presents unique problems for design and construction. These problems can be exaggerated on projects that include architectural concrete.

Innovations in Chemical Admixture Technology as Related to Sustainability (ACI Spring Convention, March 2012, Dallas, TX)

The presentations in this session will focus on how new developments in chemical admixtures contribute to sustainable construction. When considering the lifetime environmental impact of a building material from extraction, production, construction, operation, demolition, and recycling, concrete is an excellent choice for sustainable construction. Data and project profiles demonstrate how chemical admixtures reduce the environmental impact of concrete during production, assist in producing ecologically friendly concrete technologies for sustainable structures, and/or decrease environmental burden by increasing the service life of structures.

Part 1:

Part 2:

Recent Advances in ASR Test Methods and Understanding Mitigation Mechanisms (ACI Spring Convention, March 2012, Dallas, TX)

The requirements for an ideal ASR test method are that it should be rapid, reliable, and capable of determining the influence of aggregate reactivity, alkali availability, and exposure conditions. None of the currently available or commonly used methods meet all of these criteria. The current approach of ASR testing and the mitigation of the damaging effects of ASR depends heavily on accelerated mortar-bar methods and the formulation of prescriptive mixture designs.

Part 1:

Part 2:

Composite and Modular Structures (ACI Spring Convention, March 2012, Dallas, TX)

The objective of this session is to present the latest methods of analysis and design, applicable codes and standards, connections, testing, construction, and inspection of composite or steel plate-reinforced concrete modular structures or components.

The Art of Concrete (ACI Spring Convention, March 2012, Dallas, TX)

This session focuses on the aesthetic features of concrete, including its use in buildings, bridges, and flatwork. The presentation will emphasize success in the design, specification, and supply of architectural concrete. The session will highlight several prominent DFW buildings that incorporate architectural concrete features.

Quality Control and Robustness of SCC (ACI Spring Convention, March 2012, Dallas, TX)

The first part of this session focuses on the material characteristic of robustness, which is defined as the insensitivity of self-consolidating concrete’s (SCC’s) fresh properties to material changes or batching errors during production. The second part of this session examines the effective use of existing and new concrete production equipment and monitoring techniques to consistently produce quality SCC.

Part 1:

Part 2:

Post-Earthquake Repairs (ACI Spring Convention, March 2012, Dallas, TX)

This session will focus on case histories of rapid repair projects, challenges facing owners with a damaged structure, and the repairs required to use a structure after a seismic event. Emphasis is placed on projects with challenging timelines or conditions that have necessitated the use of unique technologies or approaches to facilitate the repairs.

Part 1:

Part 2:

Hope & Schupack Corrosion Symposium, Part 1 (ACI Spring Convention, March 2012, Dallas, TX)

The Hope & Schupack Corrosion Symposium is in honor of two distinguished members of ACI Committee 222, Brian Hope and Morris Schupack, who have made great contributions in the field of metal corrosion in concrete. Engineers, scientists, researchers, inspectors, technicians, academics, and materials manufacturers and suppliers will benefit from this symposium, which will highlight our past accomplishments and present a direction for the future. Subject areas covered in this symposium include, but are not limited to, the following: 1) mechanism of corrosion of reinforcing steel in concrete; 2) identifying, investigating, and quantifying corrosion; 3) corrosion control measures for new and existing structures; and 4) innovative materials and testing techniques.

Symposium Honoring James O. Jirsa’s Contributions in Structural Concrete: A Time to Reflect, Part 4: Joints (ACI Spring Convention, March 2012, Dallas, TX)

During the last 45 years, Professor James O. Jirsa has had a long and distinguished career as a Professor of civil engineering and as a student advisor at the University of Nebraska, Rice University, and the University of Texas at Austin. He has been at the forefront of structural engineering by making outstanding contributions to concrete research and design. Most notably, his contributions to reinforced concrete include his work in slabs, shear, bond and development length, and the seismic strengthening of reinforced concrete elements and systems. An ACI Honorary Member, Jirsa is a Past President of the Institute, a former Board member, and a Past Chair of many technical committees, including the Technical Activities Committee (TAC); ACI Subcommittee 318-F, New Materials, Products, and Ideas; and Joint ACI-ASCE Committees 352, Joints and Connections in Monolithic Concrete Structures, and 408, Development and Splicing of Deformed Bars; and has been a member of ACI Committee 318, Structural Concrete Building Code since 1982. Students, researchers, practicing engineers, and contractors are expected to attend. The material presented will cover state-of-the-art information in the aforementioned areas.

Symposium on Integrated Cement-Based Pavement Solutions, Part 2: Roller-Compacted Concrete Pavements (ACI Spring Convention, March 2012, Dallas, TX)

The use of roller-compacted concrete (RCC) has extended beyond heavy-duty pavements. It is now being used for streets, county roads, department of transportation (DOT) highway shoulders, and parking lots. Improvements in mixture design and construction techniques have resulted in a smoother, tighter surface. Ready mixed concrete producers are teaming with asphalt paving contractors to provide another pavement option for streets, local roads, and parking facilities. This session will cover design and construction aspects, including several case studies. It should be of interest to designers, paving contractors, DOT officials, and ready mixed concrete producers.