Microstructure Evolution of Sandstone Cemented by Microbe Cement Using X-ray Computed Tomography
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2013年第6期
论文作者：RONG Hui QIAN Chunxiang
文章页码：1134 - 1139
摘 要：The bio-sandstone, which was cemented by microbe cement, was firstly prepared, and then the microstructure evolution process was studied by X-ray computed tomography（X-CT） technique. The experimental results indicate that the microstructure of bio-sandstone becomes dense with the development of age. The evolution of inner structure at different positions is different due to the different contents of microbial induced precipitation calcite. Besides, the increase rate of microbial induced precipitation calcite gradually decreases because of the reduction of microbe absorption content with the decreasing pore size in bio-sandstone.
RONG Hui1,2,3，QIAN Chunxiang1,2,3
1. School of Materials Science and Engineering,Southeast University3. Research Institute of Green Construction Materials,Southeast University
摘 要：The bio-sandstone, which was cemented by microbe cement, was firstly prepared, and then the microstructure evolution process was studied by X-ray computed tomography（X-CT） technique. The experimental results indicate that the microstructure of bio-sandstone becomes dense with the development of age. The evolution of inner structure at different positions is different due to the different contents of microbial induced precipitation calcite. Besides, the increase rate of microbial induced precipitation calcite gradually decreases because of the reduction of microbe absorption content with the decreasing pore size in bio-sandstone.
关键词：
