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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 422 Abstracts search results

Document: 

CI4801Q&A

Date: 

January 1, 2026

Publication:

Concrete International

Volume:

48

Issue:

1

Abstract:

This month's Q&A discusses the new compliance requirements for field-cured specimens in ACI CODE-318-25 and other procedures approved by the licensed design professional to evaluate concrete strength.

DOI:

10.14359/51749392

Document: 

CI4712Bischoff

Date: 

December 1, 2025

Author(s):

Peter H. Bischoff, Wassim Nasreddine, and Hani Nassif

Publication:

Concrete International

Volume:

47

Issue:

12

Abstract:

This is the last article in a five-part series on calculating deflections for members not meeting minimum thickness requirements in accordance with ACI CODE-318-19. The Code’s approach for calculating immediate deflection of reinforced (nonprestressed) concrete is broadened to include prestressed concrete loaded above the cracking moment (Class T and Class C prestressed members).

DOI:

10.14359/51749338

Document: 

CI4708ConcreteQA

Date: 

August 1, 2025

Publication:

Concrete International

Volume:

47

Issue:

8

Abstract:

This month’s Q&A is a follow up to the February 2025 Q&A. It discusses changes in core conditioning requirements in ACI CODE-318 and ASTMC42/C42M that took place within the last 25 years and research findings that led to these changes. It also explains whether standard moisture conditioning requirements could be changed on some projects.

DOI:

10.14359/51749082

Document: 

CI4708Abdullah

Date: 

August 1, 2025

Author(s):

Saman A. Abdullah, Miki Mori, and John W. Wallace

Publication:

Concrete International

Volume:

47

Issue:

8

Abstract:

Relevant test data for a comprehensive study of factors influencing bond-splitting behavior was identified from literature review. Based on this review, a database of 79 column and beam tests was compiled and studied to develop an alternative provision for bond splitting that was adopted in Section 18.7.4.3 of ACI CODE-318-25. The article summarizes the details of this study.

DOI:

10.14359/51749087

Document: 

CI4706ConcreteQA

Date: 

June 1, 2025

Publication:

Concrete International

Volume:

47

Issue:

6

Abstract:

This month’s Q&A discusses changes in ACI CODE-318-25 for coefficient of friction for concrete placed against hardened concrete that is clean, free of laitance, and not intentionally roughened, as well as new provisions for determining if an intentionally roughened surface meets the 1/4 in. roughness specified in Table 22.9.4.2.

DOI:

10.14359/51747838

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