Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 51 No. 4 December 2020
Permeabilities of Cement-Treated Geomaterials Subjected to Varying Water-Cement Ratios
Hai-lei Kou, Meng Yang, Wang-chun Zhang, Jing-kui Wang, and Qing-ming Song
ABSTRACT: The effect of cement-grouting plays an important role in the engineering property of cement-treated sands. To investigate the effect of different water-cement (w/c) ratios on sand cementation, one dimensional seepage test was conducted with different particle size in this study. The permeability coefficient and uniaxial compressive (UC) strength of treated samples were studied respectively. Test results indicated that with the increase of w/c ratio, the increase of permeability coefficient of sands with particle size 1.25-2.50 mm is larger than that of sands with particle size 2.50- 5.00 mm after 7 days curing time. The UC strength of treated samples decreases with the increase of w/c ratio. The larger the particle size, the smaller the reduction of UC strength. These phenomena are closely related to the formed bond strength between sand particles.
KEYWORDS: One-dimensional seepage test, Water-cement ratio, Permeability coefficient, Porosity, Uniaxial compressive strength.
