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http://dx.doi.org/10.4334/JKCI.2002.14.2.249

Autogenous Shrinkage of High Performance Concrete Containing Ply Ash  

이회근 (성균관대학교 토목환경공학과)
임준영 (성균관대학교 토목환경공학과)
이광명 (성균관대학교 토목환경공학과)
김병기 (경기화학공업(주) 연구개발센터 혼화재료팀)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.2, 2002 , pp. 249-256 More about this Journal
Abstract
High performance concrete is prone to large autogenous shrinkage due to its low water to binder ratio (W/B). The autogenous shrinkage of concrete is caused by self-desiccation as a result of water consumption by the hydration of cement. In this study, the autogenous shrinkage of high performance concrete with and without fly ash was Investigated. The properties of fresh concrete, slump loss, air content, and flowability as well as the mechanical properties, compressive strength and modulus of elasticity, were also measured. Test results was shown that the autogenous shrinkage of concrete increased as the W/B decreased. For the same W/B, the autogenous shrinkage of high strength concrete with fly ash was considerably reduced although the development of its compressive strength was delayed at early ages. Furthermore, the autogenous shrinkage and compressive strength of high strength concrete were more rapidly developed than those of normal strength concrete. It was concluded that fly ash could improve the quality of high strength concrete with respect to the workability and autogenous shrinkage.
Keywords
high performance concrete; high strength concrete; autogenous shrinkage; self-desiccation; fly ash;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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