Shrinkage Reducing Measures for Engineering Cementitious Composites

作     者：杨英姿 

作者机构：School of Civil EngineeringHarbin Institute of Technology China Building Materials Academy 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2008年第23卷第6期

页      面：907-911页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：Funded by the National Natural Science Foundation of China (No.50872127) Heilongjiang Provincial Scientific Research Foundation for Returned Overseas Scholars 

主　　题：engineered cementitious composites (ECC) shrinkage SAP 

摘      要：Inhibition measurement of shrinkage of engineering cementitious composites （ECC） was investigated due to typical ECC with higher free drying *** effects of expanded admixture （EA）,shrinkage reducing admixture （SRA）,coarse sand＋stone powder （CS＋SP） and superabsorbent polymer （SAP） on drying shrinkage and mechanical properties were *** experimental results show that ECC incorporating EA,SRA and coarse sand can retain around 60% of the typical ECC＇s free drying *** polymerl（SAP） can delay the development of free drying shrinkage of ECC at different ages,and the effect of SAP is not distinct like the actions of EA,superabsorbent polymer（SRA） and coarse ***,SAP may act as artificial flaw to form a more homogeneous defect system that increases the potential of saturated multiple cracking,hence the ductility of ECC will be improved greatly.