Civil Engineering Association

ACI 223 R-10 Guide for the Use of Shrinkage-Compensating Concrete

Recommendations of this guide include proportioning, mixing, placing, finishing, curing, and testing. Shrinkagecompensating concrete is produced using expansive cements or expansive component systems.
There have been significant changes and advances in the use of shrinkage-compensating concrete since it was first introduced into the market but, in some areas, the original practices remain the best current practice. Although many references used in this guide are over 10 years old, they remain a valid reference to today’s practice.

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ACI 223 R-10: Guide for the Use of Shrinkage-Compensating Concrete

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ACI PRC-223-21: Shrinkage-Compensating Concrete - Guide

Shrinkage-compensating concrete is used in construction to minimize drying-shrinkage cracking. Its characteristics are similar to those of portland-cement concrete. The materials, proportions, placement, and curing should ensure that expansion compensates for subsequent drying shrinkage.

This guide sets forth criteria and practices to ensure the development of expansive strain in concrete. In addition to a discussion of basic principles, methods and details are given covering structural design details and applications, concrete mixture proportioning, placement, finishing, and curing.

The materials, processes, quality control measures, and inspections described in this document should be tested, monitored, or performed as applicable only by individuals holding the appropriate ACI certifications or equivalent.

Keywords:

calcium cement; drying shrinkage; expansion cement; mixture proportions; restraints; shrinkage-compensating concrete; shrinkage cracking; slab-on-ground; structural design.

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