Small-Strain Shear Modulus of Cement-Admixed Kaolinite |
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| Authors: | M Bahador A Pak |
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| Institution: | (1) Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Raleigh, NC, USA;(2) Department of Civil Engineering, Sharif University of Technology, Tehran, Iran |
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| Abstract: | An experimental study is conducted to measure small-strain shear modulus of clay-cement mixture using bender element apparatus
setup in a triaxial cell. Bender element tests were conducted on cement-treated soils and the results were analyzed to study
the variation of shear modulus properties of soil specimens at different cement contents, confining pressures, curing times,
and compaction moisture contents. Based on the obtained results increasing the cement ratio has a significant effect on the
small-strain shear modulus of the treated soils, and this effect signifies with increasing the moisture content and curing
time. Rates of shear modulus enhancements due to cement content, curing time, and compaction moisture content are quantified
and presented. In this study, a clay–cement–water ratio formulation is proposed that enables one to calculate cement and water
contents required to obtain specific small-strain shear modulus. |
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