The Research on Improving the Salt Resistance of Bentonite Used in Geosynthetic Clay Liner

Yang Yang Huai; Zhong Lei Dou; Zhi Ming Sun; Shui Lin Zheng; Hao Ran Cui

doi:10.4028/www.scientific.net/AMR.476-478.696

Paper Titles

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Synthesis and Infrared Emissivity Properties of CdS/TiO₂ Composite
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The Research on Improving the Salt Resistance of Bentonite Used in Geosynthetic Clay Liner
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Study on Properties of PEEK Composites Reinforced by SCF
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Preparation of Multi Cage-Like Zinc Oxide Nanopowder with High Specific Surface Area via a Large-Scale Hydrothermal Method
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The Research on Improving the Salt Resistance of Bentonite Used in Geosynthetic Clay Liner

Abstract:

Geosynthetic Clay Liner, a water-proofing material which takes polymer as its carrier and bentonite as its basis, has been widely applied in the seepage-proofing projects including irrigation works, gardening and roadbed. In order to improve salt-resistance of bentonite used in Geosynthetic Clay Liner in saline environment, this paper innovatively uses chemical methods to modify the bentonite material. The experimental result shows that the optimum conditions are 100% of acrylic neutralization degree, 0.04%MBA, 1.2%KPS and holding at 70°C for 1 h. According to results of soil moisture supply capacity (MSC), swelling capacity of modified samples raises 30% ~170%.