Method forin situ measurement of hydraulic conductivity (k) has been developed andprocedures for laboratory testing have been modified. Method and procedure areaimed to obtain the significant hydraulic conductivity value and to avoid theeffects of cracks or soft fissures. All samples have a minimum value of 95% ofmaximum dry density ( dmax) from standard and modified compaction test (ASTM D698 – 91). Each test result uses a sample taken from dry side; wet side and onoptimum moisture content (wopt) or OMC. First of all before the falling headtest (ASTM D 1804 – 02/ASTM 180485 – 03) uses the leachate liquid (Pondok Rajeglandfill), a solution of 0.005 CaSO4 is flown through the sample and thehydraulic gradient equals 200. Hydraulic conductivity measurement of thefalling head test using a leachate liquid starts from the pore volume of flow> 2 until the constant of hydraulic conductivity values is obtained. Fromthe test results, the samples of 3” have hydraulic conductivity value in therange 10-10 to 10-9 cm/sec, and the samples of 10” have a range between 10-8and 10-7 cm/sec. Generally, the research concludes that the magnification ofsample size influences hydraulic conductivity values on each falling head test.
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机译：已经开发了用于现场测量水力传导率（k）的方法，并修改了用于实验室测试的程序。旨在获得显着的水力传导率值并避免裂缝或软裂缝影响的方法和程序。根据标准压实试验和改良压实试验（ASTM D698 – 91），所有样品的最大干密度（dmax）的最小值均为95％。每个测试结果均使用从干燥侧获取的样本;湿侧和最佳水分含量（wopt）或OMC。首先，在落下测试（ASTM D 1804 – 02 / ASTM 180485 – 03）使用渗滤液（Pondok Rajeglandfill）之前，将0.005 CaSO4溶液流过样品，并且液压梯度为200。落下头的水力传导率测量使用浸出液的试验从流量> 2的孔体积开始，直到获得水力传导率值的常数。根据测试结果，3“的样品的水力传导率值在10-10到10-9 cm / sec的范围内，而10”的样品的水力传导率在10-8和10-7 cm / sec的范围内。通常，研究得出结论，在每次落头试验中，样品大小的放大会影响水力传导率值。
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