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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 903 Abstracts search results

Document: 

CI4810Emmons

Date: 

October 1, 2026

Author(s):

Peter Emmons, David Whitmore, and Lesley Ko

Publication:

Concrete International

Volume:

48

Issue:

10

Abstract:

P+Ex: Center of Excellence for Concrete Preservation and Service Life Extension was created to advance adequate initial service life for new concrete and meaningful additional service life for repaired structures. A core advocacy objective of P+Ex is the systematic extraction of lessons learned from repair and rehabilitation projects and the creation of a clear feedback loop that can improve the design of new structures, codes, specifications, and construction practice. This article connects in-service durability performance to resilience and sustainability, quantifies the escalating cost of deferred action, introduces the P+Ex mission and objectives, illustrates the lessons-learned feedback model that can improve the next generation of concrete structures, and calls on industry experts to play key roles in extending the service life of concrete structures.

DOI:

10.14359/51752074

Document: 

CI4810ASCCstatement

Date: 

October 1, 2026

Publication:

Concrete International

Volume:

48

Issue:

10

Abstract:

This article discusses the importance of design coordination for expansion joints in concrete structures and how successful planning, forming, and installation require coordinated design and construction decisions prior to concrete forming and placement.

DOI:

10.14359/51752085

Document: 

CI4809Larosche

Date: 

September 1, 2026

Author(s):

Aaron Larosche and Paul Ziehl

Publication:

Concrete International

Volume:

48

Issue:

9

Abstract:

Users of ACI CODE-562-25, “Assessment, Repair, and Rehabilitation of Existing Concrete Structures—Code Requirements and Commentary,” will likely have a need to design or specify some kind of repair or rehabilitation. The provisions in Chapter 9—Design of Repairs, are intended to aid the designer and set minimum standards for repairs. Some of the significant revisions to Chapter 9 in the 2025 edition of the Code are briefly highlighted in this article.

DOI:

10.14359/51752029

Document: 

CI4807Khan

Date: 

July 1, 2026

Author(s):

Mohammad S. Khan

Publication:

Concrete International

Volume:

48

Issue:

7

Abstract:

Built in 1964, the John Coffee Memorial Bridge is a two-lane, 38-span, plate-girder bridge with a concrete deck that provides a direct route for travelers from Tennessee to Mississippi. Because of its scale, inspection is challenging. A recent evaluation was conducted to select appropriate restoration methods, using robotic tools that enabled nondestructive evaluations (NDEs) without the need for traffic control. This article describes these tools and summarizes the evaluation.

DOI:

10.14359/51751807

Document: 

CI4806Q&A

Date: 

June 1, 2026

Publication:

Concrete International

Volume:

48

Issue:

6

Abstract:

Successful planning, forming, and installation of expansion joints requires coordinated design and construction decisions before concrete forming and placement. This coordination includes: 1) establishing construction tolerances for formwork and concrete placement; 2) reviewing the manufacturer’s printed installation instructions (MPII) for the specified expansion joint; 3) estimating slab movements that will occur after forming and placement but before joint installation; 4) defining the installation timing; and 5) joint protection and repair. Effective coordination of these factors is essential to achieving successful expansion joint construction.

DOI:

10.14359/51751766

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