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Density and Strength Properties of Sand-Expanded Polystyrene Beads Mixture
Expanded Polystyrene (EPS) beads was utilized to develop a new geotechnical material, sand-EPS beads-mixture (SEM). Density tests, direct shear tests and compression tests were conducted to evaluate the density and strength properties of the SEM. Direct shear tests were conducted under 4 different vertical stresses (32.7, 50, 75, 100kPa). The effect of gravimetric water content (3.25, 6.5, 9.75, 13, and 16.25%), volumetric EPS beads content (0, 33, 50, 60, 67, and 100%) and preload pressure (0, 100, 200, 300, 400kPa) on properties of the SEM were studied. The results showed that: (1) water is necessary for preparing specimens, but has no distinct effect on dry density and shear strength of the SEM; (2) dry density of the SEM decreases linearly with volumetric EPS beads content, but increases with preload pressure; and (3) the shear strength of the SEM changes little with volumetric EPS beads content and gravimetric water content, but increases with preload pressure.
Density and Strength Properties of Sand-Expanded Polystyrene Beads Mixture
Expanded Polystyrene (EPS) beads was utilized to develop a new geotechnical material, sand-EPS beads-mixture (SEM). Density tests, direct shear tests and compression tests were conducted to evaluate the density and strength properties of the SEM. Direct shear tests were conducted under 4 different vertical stresses (32.7, 50, 75, 100kPa). The effect of gravimetric water content (3.25, 6.5, 9.75, 13, and 16.25%), volumetric EPS beads content (0, 33, 50, 60, 67, and 100%) and preload pressure (0, 100, 200, 300, 400kPa) on properties of the SEM were studied. The results showed that: (1) water is necessary for preparing specimens, but has no distinct effect on dry density and shear strength of the SEM; (2) dry density of the SEM decreases linearly with volumetric EPS beads content, but increases with preload pressure; and (3) the shear strength of the SEM changes little with volumetric EPS beads content and gravimetric water content, but increases with preload pressure.
Density and Strength Properties of Sand-Expanded Polystyrene Beads Mixture
Zhu, Wei (author) / Li, Mingdong (author) / Zhang, Chunlei (author) / Zhao, Gan (author)
GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States
GeoCongress 2008 ; 36-43
2008-03-07
Conference paper
Electronic Resource
English
Density and Strength Properties of Sand-Expanded Polystyrene Beads Mixture
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