Behaviour of sand at low stress levels / Masriah Abdul Samat

A programme of triaxial compression tests was conducted in the laboratory on samples of dty sand at various density and subjecting them to low values of cell pressures of o3, Mining sand firom a site in Puchong was used in flits study. Laboratory tests such as Sieving analysis, Specific Gravity, and Triaxial Comprcssion Test were conducted on the samples. Hydraulic triaxial compression test apparatus was used for the determination of the shear strength propertks. In the triaxial tests, the samples were subjected to a variety of cell pressure ranging from 50 to 75 kPa. The objective was the samples were initialïy subjected to low values of cell pressure and keeping the volume constant Unconsotidated Undrained triaxial tests were carried out until failure occurred. From the tests it was found mat me stress-strain relationsmp, different densities and cell pressure effected the behaviour of sand and the shear strength parameters with tncreasing densities also increased the angle of fiiction,