Development of Microbe Cementitious Material in China  

作　　者：荣辉 钱春香 

机构地区：[1]School of Materials Science and Engineering,Southeast University

出　　处：《Journal of Shanghai Jiaotong university(Science)》2012年第3期350-355,共6页上海交通大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.51072035);the Ph.D.Program's Foundation of Ministry of Education of China (No.20090092110029);the Research Innovation Program for College Graduates of Jiangsu Province (No.CXZZ 0145);the Scientific Research Foundation of Graduate School of Southeast University (No.YBJJ1127)

摘　　要：Microbe cementitious material as a binder has been developed due to the ever increasing awareness of environmental protection.The new cementitious material relies on microbiologically induced precipitation of calcium carbonate to bind loose particles or repair surface defects and cracks of cement-based material.This paper elaborates the research on loose sand particles cemented by microbe cement from three aspects:compressive strength,pore structure and microstructure.In addition,the research on restoration surface defects and cracks of cement-based material by microbe cement is introduced from two parameters:surface water absorption and compressive strength recover coefficient.The results show that microbe cementitious material can bind loose particles and repair surface defects or cracks of cement-based material.Microbe cementitious material as a binder has been developed due to the ever increasing awareness of environmental protection. The new cementitious material relies on microbiologically induced precipitation of calcium carbonate to bind loose particles or repair surface defects and cracks of cement-based material. This paper elaborates the research on loose sand particles cemented by microbe cement from three aspects： compressive strength, pore structure and microstructure. In addition, the research on restoration surface defects and cracks of cement-based material by microbe cement is introduced from two parameters： surface water absorption and compressive strength recover coefficient. The results show that microbe cementitious materiM can bind loose particles and repair surface defects or cracks of cement-based material.

关 键 词：microbe cement DEFECTS MICROSTRUCTURE CALCITE cracks 

分 类 号：TU526[建筑科学—建筑技术科学]