Analysis of the Relation between Hydration Heat and Autogenous Shrinkage of Concrete at Early Ages

ABOUT THE 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.

International Concrete Abstracts Portal

  


Title: Analysis of the Relation between Hydration Heat and Autogenous Shrinkage of Concrete at Early Ages

Author(s): E.B. Lee, G.Y. Kim, K.M. Koo, and H.J. Lee

Publication: Special Publication

Volume: 261

Issue:

Appears on pages(s): 215-230

Keywords: autogenous shrinkage; early age; fly ash; ground granulated blast-furnace slag (GGBFS); high-strength concrete; hydration heat; retarder; specimen size.

Date: 10/1/2009

Abstract:
An analysis method for histories of hydration heat and autogenous shrinkage at early ages is suggested in this study. The early age properties and the relation between hydration heat and autogenous shrinkage of high-strength concrete were investigated. In the results, most autogenous shrinkage of high-strength concrete occurred in a few days after casting. The shape of autogenous shrinkage history corresponded well to the shape of hydration temperature history at early ages. There was a close relation between hydration heat and autogenous shrinkage at early ages, especially between hydration heating velocity (HHV) and autogenous shrinking velocity (ASV). And it is noted that HHV can affect the ultimate autogenous shrinkage.