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中文摘要：
纯膨润土中掺入一定比例的石英砂,可以有效地提高工程屏障的热传导特性、力学强度和长期稳定性,并可降低屏障系统的工程造价;但同时也会改变混合物的土水特征。本文采用水汽平衡法和渗析法吸力控制技术,开展了不同温度（20℃、40℃和60℃）、恒体积条件下,高压实GMZ01膨润土-石英砂混合物（7︰3）试样的持水特性试验。结果表明,体积与吸力恒定时,高压实高庙子膨润土-砂混合物的含水量随温度升高而减少,但温度影响幅度取决于吸力水平;低吸力范围内,混合物的饱和度大于1,其原因可能是由于混合物中结合水密度大所引起的;基于Frendlund常温方程的万敏模型,能够拟合考虑温度影响的GMZ01膨润土-砂混合物土水特征曲线。
英文摘要：
Pure bentonite mixes with quartz sand can effectively improve the thermo conductivity, mechanical strength and long-term stability of the mixture. It also can reduce the construction cost of the engineering barrier system. Meanwhile, it may make changes of the water retention property of the mixture. This paper uses osmotic technique and vapor equilibrium technique and tests water retention characteristics of highly compacted GMZ01 bentonite-quartz sand mixtures at different temperatures（20℃ , 40℃ and 60℃ ）under confined conditions. Results show that, for given suction and constant volume, water content of GMZ01 bentonite-sand mixtures decreases as temperature increases. But the changing rate depends on suction level. For low suctions, degree of saturation is higher than 1, which may result from the higher density of the absorbed water. Water retention characteristics GMZO1 bentonite-sand mixtures fitted by the revised Wan Min model are consistent with the measured ones.
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Adsorptive removal of La(III) from aqueous solutions with 8-hydroxyquinoline immobilized GMZ bentoni
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