This investigation was conducted to evaluate effects of temperature on swelling and bentonite extrusion properties of GCLs. The swelling characteristics were determined using standardized test procedures and extrusion characteristics were determined using a new test method developed by the authors. Tests were conducted on a conventional medium-weight wovenonwoven GCL. The range of test temperatures was 2 to 98°C (swelling tests) and -5 to 100°C (extrusion tests). The extrusion tests were conducted under stresses between 100 and 400 kPa and moisture contents between 50 and 150%. Temperature had significant effects on both swell and extrusion. The swell index ranged from 21 mL/2g at 2°C to 36.5 mL/2g at 98°C, with the largest increase occurring from 20 to 40°C. The amount of extrusion ranged from nearly 0 to 40.5 g/m2 with generally decreasing extrusion with temperature from 2 to 100°C. At a given temperature, extrusion increased with increasing stress and moisture content.
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机译：进行该研究以评估温度对GCL的溶胀和膨润土挤出性能的影响。使用标准测试程序确定溶胀特性，并使用作者开发的新测试方法确定挤出特性。在常规的中等重量的机织/非机织GCL上进行测试。测试温度范围为2至98°C（溶胀测试）和-5至100°C（挤出测试）。挤出测试是在100至400 kPa的压力和50至150％的水分含量下进行的。温度对溶胀和挤出都有显着影响。溶胀指数在2°C下从21 mL / 2g到98°C在36.5 mL / 2g范围内，最大的增加发生在20到40°C之间。挤出量范围从几乎0到40.5 g / m2，随着温度从2到100°C，挤出量通常会减少。在给定温度下，挤压随着应力和水分含量的增加而增加。
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