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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-5 of 1562 Abstracts search results
Document:
CI4706PeriTechSpotlight
Date:
June 1, 2025
Publication:
Concrete International
Volume:
47
Issue:
6
Abstract:
An improvement project on a 23-mile (37 km) section of Interstate 17 (I-17) in Arizona, USA, includes widening of 15 miles (24 km) of roadways, replacing two bridges, widening of 10 additional bridges, and constructing 8 miles (13 km) of flex lanes. PERI USA provided customized and fully rentable formwork/falsework for concrete construction on this project.
CI4704ICRIawards
April 1, 2025
4
The International Concrete Repair Institute (ICRI) announced the winners of its 2024 Project Awards. This year, three finalists were chosen, and the winner was announced on October 24, 2024. ICRI presented the Project of the Year Award to Wiss, Janney, Elstner Associates, Inc., out of Minneapolis, MN, USA, for its 3rd Avenue Bridge Rehabilitation project. ICRI awarded four additional Awards of Excellence and eight Awards of Merit.
CI4702El-Tawil
February 1, 2025
Author(s):
Sherif El-Tawil, Musawer A. Saqif, William Hazelton, Jon Winckler, and Michael Clark
2
Ultra-high-performance concrete (UHPC) is an advanced cementitious composite material with extraordinary mechanical and durability properties. This article discusses the construction of a short-span bridge using UHPC as well as the cost considerations associated with building an entire bridge with UHPC and reflects on lessons learned from the process.
SP364
December 19, 2024
ACI Committee 345
Symposium Papers
364
Serviceability is considered a critical factor in the management of concrete bridges and structures. Typical components for evaluating the serviceability limit state include cracking, deflection, and vibration. Additionally, to ensure the adequate performance of load-bearing members, proper evaluation methodologies should be adopted. Although numerous research projects have been undertaken to examine the serviceability and performance assessment of concrete bridges and structures, significant endeavors are still required to address unexplored challenges. Of interest are the development of simplified prediction and appraisal approaches; novel techniques for quantifying stress levels; serviceability criteria under unusual distress; and the characterization of structural responses when exposed to blast, wind, and seismic loadings. This Special Publication contains 11 papers selected from technical sessions held in the ACI Fall Convention in November 2024. The Editors wish to thank all contributing authors and anonymous reviewers for their rigorous efforts. The Editors also gratefully acknowledge Ms. Barbara Coleman at ACI for her knowledgeable guidance. Yail J. Kim, University of Colorado Denver, Editor Hyeon-Jong Hwang, Konkuk University, Editor
DOI:
10.14359/51745486
SP364_7
December 1, 2024
Christopher J. Motter
Retrofit of reinforced concrete bridge columns with steel jackets is a commonly implemented strategy to increase column ductility in earthquakes. If the steel jacket retrofit is designed using available guidelines, fatigue fracture of longitudinal reinforcement is a likely cause of strength degradation. Fatigue fracture in reinforcement is dependent upon strain history in reinforcement. A model was developed to determine the strain history in longitudinal reinforcement at the plastic hinge in steel jacket retrofitted reinforced concrete columns. The model was validated with existing test data, and single degree of freedom nonlinear time history analyses were conducted using the model. Earthquake duration was shown to have a significant impact on the number of plastic excursions and the total plastic strain in the reinforcement, based on the results of analyses using an existing suite of long-duration earthquake ground motions that were each paired with a short-duration ground motion with similar response spectra. Results from analyses of 600 Magnitude-9.0 Cascadia Subduction Zone simulated site-specific ground motions for western Washington State were used in the formulation of a new testing protocol for steel jacket retrofitted reinforced concrete bridge columns that better accounts for expected demands in this region.
10.14359/51745459
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