Sessions & Events

 

All sessions and events take place in Pacific Standard Time: PST (GMT-8). On-demand sessions will be available for viewing in the convention platform under "On-Demand Content" within 24-48 hours of the session premiere. Please note, on-demand sessions are not available for CEU credit. * Denotes on-demand content.


Convention Highlights

Tuesday, April 4, 2023


8:00 AM - 9:00 AM

Moderator: Norbert J Delatte

This session will include materials considerations for pervious concrete, proper maintenance of pervious concrete pavements, and an innovative application of pervious concrete.

Learning Objectives:
(1) Discuss basics of pervious concrete mixture design and proportioning
(2) Describe non-hydraulic cement technology and improvements over Portland cement, ASTM standards;
(3) Investigate manufacturing and job site realities;
(4) Identify how to maintain pervious concrete pavements.


8:30 AM - 10:30 AM

Moderators: Michael C Brown, Hitoshi Shiohara

Concrete structure design is constantly evolving to incorporate new materials and analysis methods to produce structures that are both more robust and more efficient. The 6th ACI / JCI Joint Seminar will explore the advancement of design through sessions that focus on design of concrete components, advancements in concrete materials, design for seismic performance, and development of sustainable solutions. The ACI / JCI Joint Seminar is the sixth joint seminar co-sponsored by the American Concrete Institute and Japanese Concrete Institute. The seminars are intended to bring together researchers and practitioners from both organizations to share knowledge with the broader ACI / JCI communities and develop future collaborations.

Learning Objectives:
(1) Describe the benefits of tri-directional loading tests to evaluation shear wall behavior;
(2) Understand how double-hooked fibers simplify the construction of coupling beams;
(3) Evaluate how image analysis can be used to assess confinement effects in RC columns;
(4) Identify how performance-based codes, developed considering prior failures, can improve foundation performance.


8:30 AM - 10:30 AM

Moderator: Oscar R Antommattei

The objective of this session is to recognize the outstanding contributions of Bruce Suprenant to the advancement of knowledge of concrete materials, design and construction. This session will bring a variety of well-recognized concrete experts and industry practitioners to highlight some of the most important technical contributions of Dr. Suprenant to the concrete construction industry.

Learning Objectives:
(1) Understand the fundamental values of concrete construction and its impact to ACI standards;
(2) Recognize the lessons learned by the implementation of quality control and tolerance requirements in concrete construction;
(3) Identify practical solutions for implementing the industry best practices in design and construction;
(4) Know the fundamentals and best practices for concrete slab construction;
(5) Discuss effect of cold weather concreting in flat concrete construction.


8:30 AM - 10:30 AM

Moderator: Dean A Frank

NEU: An ACI Center of Excellence for Carbon Neutral Concrete would like to make the Spring 2023 specialty day focused on carbon neutral concrete. This event will have multiple speakers that will be geared toward contractors, engineers, architects, owners/operators, and relevant industry NGO's. Attendees will gain understanding about the innovative materials and technologies that ACI is advancing through its committee and center work that can be used to create more carbon neutral concrete.
It is the goal of the NEU Carbon Neutral Concrete Specialty Day to reach both domestic and international audiences to discuss the themes of more sustainable and low carbon concrete practices, materials, and technologies.

Learning Objectives:
(1) Recognize NEU's vision and mission towards carbon neutral cement and concretes;
(2) Identify ways to achieve carbon reduction in cement and concrete production and placement;
(3) Discuss calcined clay cement (LC3) and alternative cements;
(4) Discuss CCUS technology for cement and concrete industry.


8:30 AM - 10:30 AM

Moderators: Eva Olivia Leontien Lantsoght, Trevor D Hrynyk

The design, analysis, and performance of structural concrete slabs under punching shear loading conditions are topics that have been studied extensively over many decades and are well-documented in the literature. However, the majority of the work reported in these areas has generally related to conventional concrete slabs subjected to highly-idealized loading conditions.

Structural engineers need to find new, innovative ways and methods to design new structures but also to strengthen the existing ones to be safe, resilient, and sustainable. These challenges can be addressed through the use of integrated systems and high performance and smart materials. We live in a new era of improved computational capabilities, advances in high-performance computing, numerical and experimental methods, and data-driven techniques, which give us for the first-time broader access to larger and better data sets and analysis tools. These new insights can be seen as essential to examine further the structural behavior of concrete slabs under punching shear and to implement and analyze new materials and loading conditions.

Learning Objectives:
(1) Understand the punching behavior of novel slab systems;
(2) Understand how linear finite element modeling can assist a punching analysis;
(3) Apply punching models to footings;
(4) Evaluate the effects of corrosion and anchoring details on the punching capacity.


9:00 AM - 10:00 AM

Moderator: Ann Harrer

This session will address recent developments and hot topics related to the protective systems for concrete. There will also be discussion involving the ongoing development of 515.2R, Guide for Selection of Protective Systems for Concrete and how it will address new technologies and hot topics within the industry.

Learning Objectives:
(1) Describe basic mechanisms of microbially induced corrosion;
(2) Explain how specifiers can utilize ACI 515.2R, Guide for Selection of Protective Systems for Concrete;
(3) Describe various protective systems available in the industry;
(4) Identify advantages and limitations of some commonly available protective systems.


11:00 AM - 1:00 PM

Moderators: Kevin Conroy, Minehiro Nishiyama

Concrete structure design is constantly evolving to incorporate new materials and analysis methods to produce structures that are both more robust and more efficient. The 6th ACI / JCI Joint Seminar will explore the advancement of design through sessions that focus on design of concrete components, advancements in concrete materials, design for seismic performance, and development of sustainable solutions. The ACI / JCI Joint Seminar is the sixth joint seminar co-sponsored by the American Concrete Institute and Japanese Concrete Institute. The seminars are intended to bring together researchers and practitioners from both organizations to share knowledge with the broader ACI / JCI communities and develop future collaborations.

Learning Objectives:
(1) Understand how sustainability provisions will be introduced in the ACI 318-25 Building Code;
(2) Identify methods to specify sustainable construction methods for new design;
(3) Describe use of fly ash substitutes can be used to create high-performance concretes;
(4) Understand the benefits of collaboration between international technical societies.


11:00 AM - 1:00 PM

Moderators: Kejin Wang, Kamal H Khayat

Nanoparticles can function like seeds for CSH nucleation to accelerate cement hydration, and they also act like fillers to refine pore structure and immobilize water movement in cement paste. Due to these benefits, nanoparticles have been increasingly used in various types of concrete, such as self-consolidating concrete (SCC) and ultra-high-performance concrete (UHPC). In SCC, nanoparticles are often used to modify rheological properties, especially thixotropic behavior, of the concrete to achieve not only appropriate flowability but also proper segregation resistance and prompt reduction in the formwork pressure during construction. Nanoparticles are also frequently used to densify microstructure of SCC to improve the concrete strength, transport properties, and durability. The objectives of this technical session are to summarize the recent progress on the use of nanoparticles in SCC, to have a better understanding of the potential roles of nanoparticles and to recognize challenges in the use of nanoparticles in SCC.

Learning Objectives:
(1) Investigate recent research progress and innovations resulting from use of nanoparticles in SCC;
(2) Evaluate nanoparticle modification for properties of SCC;
(3) List the key issues in use of nanoparticles in SCC practice;
(4) Explain the benefits and challenges of use of nanoparticles in SCC.


11:00 AM - 1:00 PM

Moderator: Oscar R Antommattei

The objective of this session is to recognize the outstanding contributions of Bruce Suprenant to the advancement of knowledge of concrete materials, design and construction. This session will bring a variety of well-recognized concrete experts and industry practitioners to highlight some of the most important technical contributions of Dr. Suprenant to the concrete construction industry.

Learning Objectives:
(1) Recognize the typical issues and solutions experienced by concrete contractors and producers;
(2) Review best practices implemented in architectural concrete construction for a project in the USA;
(3) Describe the opportunities for innovation in construction;
(4) Identify challenges related to the concrete compressive strength results during construction;
(5) Understand myths and misinterpretations related to the concrete compressive strength. 


11:00 AM - 1:00 PM

Moderators: Eva Olivia Leontien Lantsoght, Trevor D Hrynyk

The design, analysis, and performance of structural concrete slabs under punching shear loading conditions are topics that have been studied extensively over many decades and are well-documented in the literature. However, the majority of the work reported in these areas has generally related to conventional concrete slabs subjected to highly-idealized loading conditions.

Structural engineers need to find new, innovative ways and methods to design new structures but also to strengthen the existing ones to be safe, resilient, and sustainable. These challenges can be addressed through the use of integrated systems and high performance and smart materials. We live in a new era of improved computational capabilities, advances in high-performance computing, numerical and experimental methods, and data-driven techniques, which give us for the first-time broader access to larger and better data sets and analysis tools. These new insights can be seen as essential to examine further the structural behavior of concrete slabs under punching shear and to implement and analyze new materials and loading conditions.

Learning Objectives:
(1) Describe the mechanics of a punching failure in reinforced concrete based on experiments and analytical models;
(2) Identify key parameters influencing the punching capacity of post-tensioned slabs;
(3) Understand the influence of seismic loading on the punching capacity;
(4) Identify key modeling choices for nonlinear finite element modeling of punching shear failures.


11:30 AM - 1:30 PM

$55.00

Speakers during this luncheon will provide an overview of the challenges in finding methods to lower the carbon emissions in concrete, including how the many of the levers for improving sustainability are already in standards, but are not widely adopted in practice. Alternative methods to reduce carbon are discussed, as well as the use of different building materials. Case studies will be shared that highlight several unique structures that were designed for durability, aesthetics, and significant reduction in CO2.

Carbon Neutral Concrete Specialty Day Lunch presentations:
• “Overcoming Barriers to Adoption of More Sustainable Concretes” (Dr. Doug Hooton, University of Toronto)
• “Proposed Carbon Reduction Strategies” (Representatives from the industry)
o “Buildings as a Solution – A New Alternative to Carbon Capture” (Patrick McConnell, Atlantis Fiber)
o “Impact of UHPC to the total carbon footprint of a pre-cast bridge installation” (Peter W Weber, ceEntek Pte Ltd)
o “Low Carbon Concrete Case Studies Presented” (Mark A. Bury, Master Builders Solutions)
o Leading the way to carbon neutral concrete – Heidelberg Materials Sustainability Roadmap (Larry Rowland, Heidelberg Materials)




More information on NEU Carbon Neutral Concrete Specialty Day Lunch speakers here.


1:30 PM - 3:30 PM

Moderator: Oscar R Antommattei

The objective of this session is to recognize the outstanding contributions of Bruce Suprenant to the advancement of knowledge of concrete materials, design and construction. This session will bring a variety of well-recognized concrete experts and industry practitioners to highlight some of the most important technical contributions of Dr. Suprenant to the concrete construction industry. 

Learning Objectives:
(1) Know the methods to resolve challenges in design and construction to produce level slabs-on-metal deck floors;
(2) Understand the causes and solutions related to the delamination of hard troweled concrete;
(3) Discuss the fundamentals of constructability of concrete projects;
(4) Identify ways to improve the design and construction of slabs-on-ground concrete;
(5) Recognize the value and results of construction research projects to the development of standards.


1:30 PM - 3:30 PM

Moderator: Mohamed ElBatanouny

The objective of this session is to present and discuss case studies related to long-term monitoring especially in field settings. The focus is how to translate SHM data into useful information that can be used by engineers and owners to: (1) understand the current condition of the monitored structure, (2) prediction of remaining service life and damage prognosis, and (3) maintenance scheduling and prioritization, if applicable. The session will be of interest to engineers, researchers, and infrastructure owners and operators.

Learning Objectives:
(1) Understand the use long-term monitoring for structural assessment;
(2) Review 'big data' analysis techniques and data fusion applications for long-term monitoring methods;
(3) Learn how to use long-term data for condition assessment of concrete structures;
(4) Define new sensors and applications for long-term monitoring and data analysis.


1:30 PM - 2:30 PM

Moderator: Jerry D Coombs

As extreme weather conditions have become more common, there is a greater potential for damaging fires, especially in wildland urban interfaces. This can lead to more and more buildings being exposed to high temperatures. Following the event, it’s important to be able to determine what part of a concrete structure is salvageable and what should be removed and replaced. This session will walk attendees through the appropriate steps for assessing concrete damage and developing a remediation plan.

Learning Objectives:
(1) Recognize how concrete is affected by fire;
(2) Describe the wildland-urban interface;
(3) Summarize what steps and tests are involved in assessing fire-exposed concrete foundations;
(4) Describe the basic elements of a remediation plan for fire-exposed concrete foundations.


1:30 PM - 3:30 PM

Moderator: Dean A Frank

NEU: An ACI Center of Excellence for Carbon Neutral Concrete would like to make the Spring 2023 specialty day focused on carbon neutral concrete. This event will have multiple speakers that will be geared toward contractors, engineers, architects, owners/operators, and relevant industry NGO's. Attendees will gain understanding about the innovative materials and technologies that ACI is advancing through its committee and center work that can be used to create more carbon neutral concrete.
It is the goal of the NEU Carbon Neutral Concrete Specialty Day to reach both domestic and international audiences to discuss the themes of more sustainable and low carbon concrete practices, materials, and technologies.

Learning Objectives:
(1) Identify low carbon policy initiatives in cement and concrete sector;
(2) Report real world applications of low carbon cement and concrete;
(3) Review case studies associated with low carbon concrete;
(4) Describe NEU's technology validation program.


1:30 PM - 3:30 PM

Moderators: Sriramya D Nair, Pravin Saraswatula

The purpose of this session is to offer authors/speakers an open forum for presentation of recent technical information that does not fit into other sessions scheduled for this convention. Any aspect of structural analysis or design, concrete materials science, or construction, manufacturing, use, and maintenance and health monitoring of concrete structures and products can be presented.


2:00 PM - 3:00 PM

Moderator: Brian M Killingsworth

Inform owners, designers, and contractors about relevant concrete pavement sustainability concepts.

Learning Objectives:
(1) Review how to report embodied and operational emissions over the pavement life-cycle;
(2) Recognize how sustainability and resilience of concrete pavement is impacted by design choices and materials selection;
(3) Investigate the means for reporting material environmental impacts;
(4) Discuss how sustainability concepts may be used during project selection, design, construction, and use;
(5) Explain how sustainability and resilience are related and should be considered in all projects.


3:00 PM - 4:00 PM

Moderators: Jan Vosahlik, Stacia Van Zetten

This mini session is a recurring event focused on the latest developments, case studies, and lessons learned in the area of concrete constructability. Arguably, constructability is one of the most overlooked components of concrete project design and planning. Yet if not properly addressed, it can result in a variety of issues during the construction phase of the project, including negative impacts on the project schedule and budget. Often, the devil lies in the details when it comes to constructible projects. This session will aim at discussing a variety of constructability-related topics that will be based on real-world experiences and case studies.

Learning Objectives:
(1) Recognize recent developments in the area of concrete constructability;
(2) Describe frequent issues occuring on concrete projects that negatively impact constructability, schedules, and project budgets;
(3) Identify potential constructability pain points and acquire proven strategies to prevent them from occuring;
(4) Understand the design behind complicated project elements and alternative methods to construct them.


4:00 PM - 6:00 PM

Moderator: Oscar R Antommattei

The objective of this session is to recognize the outstanding contributions of Bruce Suprenant to the advancement of knowledge of concrete materials, design and construction. This session will bring a variety of well-recognized concrete experts and industry practitioners to highlight some of the most important technical contributions of Dr. Suprenant to the concrete construction industry.   

Learning Objectives:
(1) Identify the solutions for planning and construction of special applications for architectural concrete;
(2) Recognize the lessons learned from experience of using 3-D laser scanning on slab-on-grade concrete;
(3) Know the alternatives for improving constructability and providing a streamline of the design process;
(4) Understand ways to troubleshoot concrete and construction operations;
(5) Describe best practices to improve the concrete industry productivity.


4:00 PM - 6:00 PM

Moderators: Matthew J Bandelt, Robert J Thomas

Introduction to UHPC Certificate Program will compliment the roll-out of the upcoming Ultra-High Performance Concrete (UHPC) Certificate Program which focuses on field and laboratory testing information. It will offer an introduction to UHPC as a classification of materials and typical applications where this innovative product is used. The session will explain the structure of the Certificate Program and describe the testing methods and specific requirements successful applicants to the program will need to understand.

Learning Objectives:
(1) Describe mixture constituents and basic mechanical properties of UHPC materials;
(2) Explain applications of UHPC materials in reinforced concrete structures;
(3) Describe considerations for working with UHPC in the field;
(4) Summarize the structure and main learning modules of the new UHPC Certificate Program.


4:00 PM - 6:00 PM

Moderators: Prannoy Suraneni, Christopher R Shearer

The objective of the session is to discuss fly ash and natural pozzolan specifications and how they can be modified to allow the use of novel materials, including harvested ashes, fly ash and/or natural pozzolan blends, and other materials not currently covered by specifications. New test methods and performance-based specifications are both of interest. The session is aimed at researchers and practitioners who will understand how specifications can be improved using the latest research & development.

Learning Objectives:
(1) Explain new developments for performance of fly ash and natural pozzolans;
(2) Identify potentially problematic items in current ASTM/AASHTO specifications for fly ash and natural pozzolans;
(3) Discuss novel specification approaches for fly ash and natural pozzolans;
(4) Investigate links between supplementary cementitious materials reactivity and concrete durability.


4:00 PM - 6:00 PM

Moderators: Sriramya D Nair, Pravin Saraswatula

The purpose of this session is to offer authors/speakers an open forum for presentation of recent technical information that does not fit into other sessions scheduled for this convention. Any aspect of structural analysis or design, concrete materials science, or construction, manufacturing, use, and maintenance and health monitoring of concrete structures and products can be presented.


5:00 PM - 6:00 PM

Faculty members and graduate students are invited to attend this informal reception for an opportunity to exchange ideas and network. Light hors d'oeuvres and a cash bar will be available.


6:30 PM - 8:00 PM

Join ACI attendees and guests for an evening of networking, entertainment, and great food during the Concrete Mixer, held at the Hilton San Francisco Union Square. An assortment of food and beverages will be available.



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