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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 420 Abstracts search results

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: 

CI4807Tech-Note-224.5-22

Date: 

July 1, 2026

Publication:

Concrete International

Volume:

48

Issue:

7

Abstract:

ACI 332 requires contraction joints in plain and reinforced concrete slabs-on-ground. For post-tensioned (PT) residential slabs-on- ground, PTI DC10.1 permits contraction joints to minimize and conceal random cracks. The layout of contraction joints in residential slabs requires special considerations, which are discussed in this TechNote.

DOI:

10.14359/51751812

Document: 

CI4807ConcreteQ&A

Date: 

July 1, 2026

Publication:

Concrete International

Volume:

48

Issue:

7

Abstract:

Currently, there is no established standard for hybrid construction joints. The upcoming ACI PRC-360, “Design of Slabs-on Ground,” will provide information on the purpose and design of such joints. However, the document will not provide a solitary standard hybrid joint detail, as the design depends on the amount of reinforcement used throughout the slab and the type of dowels specified for the construction joints.

DOI:

10.14359/51751813

Document: 

CI4806Du

Date: 

June 1, 2026

Author(s):

Chongjiang Du

Publication:

Concrete International

Volume:

48

Issue:

6

Abstract:

Over the past four decades, significant advances have been achieved in material science and construction technologies for the construction of dams. Among these, MgO concrete, rock-filled concrete, and roller-compacted concrete have been applied on an increasing trend in the construction of concrete dams. The application of these innovative materials and technologies in arch dam construction makes it possible to omit transverse and longitudinal contraction joints, which can speed up construction progress and reduce project costs. This paper discusses the design and construction features of arch dams constructed without contraction joints, highlighting the role of innovative materialsand associated construction methods.

DOI:

10.14359/51751761

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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