Concrete Research and Technology
Online ISSN : 2186-2745
Print ISSN : 1340-4733
ISSN-L : 1340-4733
A Study on Composed Deformation of Autogenous Shrinkage and Thermal Expansion due to Heat of Hydration in High-strength Concrete
Hiroshi HashidaNobuyuki Yamazaki
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2002 Volume 13 Issue 1 Pages 25-32

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Abstract

This paper reports the observed deformation composed of autogenous shrinkage (AS) and thermal expansion/contraction in high-strength concrete with water-binder ratio of 0.4-0.2. While AS in concrete with Portland cement subjected to high temperature history becomes smaller than that under 20°C, AS in concrete with blended cement becomes larger when amount of the additives is large. By taking increase of thermal expansion coefficient with age into account, it may be able to estimate the composed deformation in high-strength concrete structures.

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© Japan Concrete Institute
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