Experimental Research on the Autogenous Shrinkage of MK High Performance Concrete

武汉理工大学学报-材料科学版(英文版), 2007, 22(3): 551-554.

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1.School of Civil and Hydraulic Engineering, Dalian University of Teehnology, Dalian 116024, China

2.School of Civil and Hydraulic Engineering, Dalian University of Teehnology, Dalian 116024, China

3.School of Civil and Hydraulic Engineering, Dalian University of Teehnology, Dalian 116024, China

Experimental Research on the Autogenous Shrinkage of MK High Performance Concrete

Calcine and mill kaolin were used under agreeable technological conditions to generate matakaolin (MK). The autogenous shrinkage performance of high performance concrete added with MK was researched. It is shown that MK has an effective inhibitory action to early autogenous shrinkage of cement concrete, and the inhibitory action increases with the increase of MK. The autogenous shrinkage values from 24 hours after placement to 56 days are all higher than those of the contrasted concrete, among which, the value of the concrete with 5% MK is the highest. But the total shrinkage values in 56 days are all less than those of the contrasted test pieces. The total contraction after 24 h of placement decreases as the increase of MK, moreover,it is greatly less than that of the contrasted ones.

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Experimental Research on the Autogenous Shrinkage of MK High Performance Concrete

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