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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 1021 Abstracts search results

Document: 

CI4802ModernSkyscraper

Date: 

February 1, 2026

Author(s):

Rachel Schick and Sidra Dahhan

Publication:

Concrete International

Volume:

48

Issue:

2

Abstract:

“The Modern Concrete Skyscraper" exhibition at The Skyscraper Museum in New York, NY, USA, retells the history of the high-rise through the lens of reinforced concrete. CI staff were toured through the exhibit, gaining insight into the curation process; the inspiration, goals, and themes behind the exhibit; and its reception.

DOI:

10.14359/51749505

Document: 

SP366_07

Date: 

October 1, 2025

Author(s):

Neal Berke, Kyle Stanish, and Ali Inceefe

Publication:

Symposium Papers

Volume:

366

Abstract:

This paper demonstrates how a model that includes the chemical reactions in concrete, as well as the tortuosity of the concrete, can be used to predict the effects of cations on the ingress of chloride and changes in the hydroxide levels. Scenarios using low and high C3A cements exposed to NaCl, KCl, CaCl2, and MgCl2 are modeled. The predictions are compared to test data presented several years ago by Professor Hansson. The modeling provides a rapid means that can be used to assess both the salt and cement type on the corrosion susceptibility of embedded steel reinforcement in concrete.

DOI:

10.14359/51749235

Document: 

CI4708ModernConcreteSkyscraper

Date: 

August 1, 2025

Publication:

Concrete International

Volume:

47

Issue:

8

Abstract:

Reinforced concrete skyscrapers evolved in several stages and from many influences. While most of those changes were hidden from view, this exhibition exposes the material concept and process in multiple structural models, construction views, and videos. The exhibition will be on display through October 2025.

DOI:

10.14359/51749078

Document: 

CI4707Lankard

Date: 

July 1, 2025

Author(s):

David R. Lankard

Publication:

Concrete International

Volume:

47

Issue:

7

Abstract:

Bleeding and finishing issues can result in an increased risk of concrete scaling. This risk may be further increased when supplementary cementitious materials and Type IL cement are used. This article focuses on petrographic examination of scaled flatwork constructed of concrete containing Type IL cement and fly ash, and Type IL cement and slag cement.

DOI:

10.14359/51748936

Document: 

SP364_5

Date: 

December 1, 2024

Author(s):

Michael Pickett, Daniel Richey, Chris Moore, Joshua Umphrey, and Gordon Borne

Publication:

Symposium Papers

Volume:

364

Abstract:

Reinforced concrete sections have typically been the most used material for hardened protective construction due to their mass and the ductility provided by the reinforcement. The additional mass of these sections reduces deflections and increases dampening, which reduces vibrations. Even for the occasional occurrence of hardened steel structures, the foundation is comprised of reinforced concrete. Reinforced concrete structures are hardened for a multitude of reasons. The most common include antiterrorism, force protection, equivalent protection for quantity distance arc violations, personnel protection, prevention of prompt propagation, asset protection, and elastic response during repeated intentional detonations. Many of the structures in the United States (US) used by the Department of Defense (DoD), to accommodate a rapid increase in production and storage of explosives were built during World War II (1941-1945). Facilities used for explosives production, maintenance, research and development (R&D), demolition, testing, and training are commonly referred to as Explosives Operating Locations (EOLs). This puts the average age of many of these facilities close to 80 years-old, which is past their originally intended service life. This paper presents a structural health and visual inspection (SHVI) technique developed by the U.S. Army Corps of Engineers (USACE) Facilities Explosives Safety Mandatory Center of Expertise (FES MCX), the University of Oklahoma, and the Engineering Research and Development Center (ERDC) Geotechnical and Structures Laboratory (GSL) for the inspection of reinforced concrete Explosives Operations Location (EOL) facilities and live-fire training facilities [9]. This inspection process has been utilized to inspect over 1500 structures across multiple countries over the last decade and aid DoD installations in planning and budgeting for necessary repairs and future recapitalization priorities. This work does not include application to anti-terrorism or force protection in hardened structures for conventional weapon effects. This process has also been modified for use in live-fire training operations in concrete facilities and coupled with analyses to determine facility adequacy for explosives operations with desired charge weights, based on the given facility’s current structural health rating and its analyzed ability to remain elastic during repeated intentional detonations. The FES MCX partners with ERDC for concrete coring, materials analysis, and testing of samples to determine the estimated remaining service life of concrete structures based on the carbonation front of cored samples determined by the carbonation tests in relationship to the steel reinforcement. Examples of historical application will be given, and details provided on how these methods can lead to improved life-cycle cost for concrete structures and paired with design development criteria for optimal results.

DOI:

10.14359/51745457

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