Test method for determination of optimum moisture content of soil and maximum dry density

摘要: A method for accurately determining the optimum water content of soil and corresponding maximum dry density has been developed using a small number samples, based on physical parameters confined compression modulus soil. The peak value force-compression curve is used to determine moisture density. proposed validated four different types soils: Qinghai-Tibet clay, SiO2-clay, Lanzhou loess, sand results show that as opposed conventional compaction methods, new allows accurate determination various Additionally, certain contents, when greatest, clay SiO2-clay attain theoretical saturation status, whereas loess do not.