Development of Microbe Cementitious Material in China

doi:10.1007/s12204-012-1285-x

Abstract

Abstract: 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.

Key words: microbe cement| defects| microstructure| calcite| cracks

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.

关键词: microbe cement| defects| microstructure| calcite| cracks

CLC Number:

TU 526

RONG Hui (荣辉), QIAN Chun-xiang (钱春香). Development of Microbe Cementitious Material in China[J]. Journal of shanghai Jiaotong University (Science), 2012, 17(3): 350-355.

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