Abstract
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.
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Funded by 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) and the Scientific Research Foundation of Graduate School of Southeast University (Nos. YBJJ1127 and YBPY1208)
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Rong, H., Qian, C. Microstructure evolution of sandstone cemented by microbe cement using X-ray computed tomography. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 28, 1134–1139 (2013). https://doi.org/10.1007/s11595-013-0833-z
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DOI: https://doi.org/10.1007/s11595-013-0833-z