Su Latt Hnin, Phyu Phyu Lwin
This study presents stabilization of two different studied soils treated with cement-natural pozzolan. Soil samples are taken at about 3 ft depth from Yenangyaung Industrial Zone in Yenangyaung Township and Chaung Woong village in Patheingyi Township which are denoted by Soil A and soil B respectively. Laboratory tests are conducted to determine the engineering properties and strength characteristics of studied soils with and without cement and natural pozzolan. Specific gravity test, grain-size analysis, atterberg limit test and free swell test are performed to identify and classify the studied soils. Compaction test is used to obtain the optimum moisture content and maximum dry density. Studied soils are then tested for strength parameters such as triaxial shear test and california bearing ratio (CBR) test. According to Unified Soil Classification System (USCS), the studied soils are found as clayey sand in SC group and fat clay with sand in CH group. In order to determine optimum content of cement on the basic of MDD value, soils are mixed with cement. Cement contents are selected as 2%, 4% and 6% by weight of natural soil. Optimum contents of cement are 2% for SC soil and 4% for CH soil. Then, studied soils are stabilized with various percentages (4%, 8%,12%) of natural pozzolan on the basic of optimum content of cement. Atterberg limit test , compaction test, triaxial shear test, and CBR test are performed for these modified mixture.
Atterberg Limit, Cement, CBR, Compaction, Natural Pozzolan