231R-10: Report on Early-Age Cracking: Causes, Measurement, and Mitigation

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Title: 231R-10: Report on Early-Age Cracking: Causes, Measurement, and Mitigation

Author(s): ACI Committee 231

Publication: Technical Documents

Volume:

Issue:

Appears on pages(s): 50

Keywords: autogenous shrinkage; cracking; early-age; heat of hydration; measurement; microstructure; mitigation methods; shrinkage; shrinkage cracking; sustainability; thermal cracking; thermal properties.

Date: 1/1/2010

Abstract:
Early-age cracking is a challenge for the concrete industry. Materials selection, environmental conditions, and field practices all have considerable influence on the propensity for early-age cracking to occur. This document focuses on thermal- and moisture-related deformations; both are materials-related and contribute to early-age cracking. The document provides detailed reviews on the causes of deformation and cracking, test methods for assessing shrinkage and thermal deformation properties, and mitigation strategies for reducing early-age cracking.