Laboratory Tests on the Improvement of Strength of Silt Using Microbes

Abstract:

Microbe technology is introduced for improving silt The metabolic outcomes and precipitation of microbes can glue the soil granule,plug mineral lattice crystal,simultaneously strengthen their shear resistance.Characteristics of silt before and after modification are compared by CU triaxial compression test. By Scanning Electron Microscope(ESEM) and Energy Dispersive X-ray(EDX),the modification mechanism of silt has been investigated.The results show that the values φ of silt is increased larger modified by carbonate mineralization microbes, while the value of cohesion increases larger by polysaccharides viscose microbes.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 1620-1625
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.1620
• Online since: May 2012
• Authors: Zhao Yang Xu, Shao Jin Wan, Yao Ren Ma
• Keywords: EDX, ESEM, Microbe, Modification Mechanism, Silt, Tri-Axial Compression Test

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