STABILISASI TANAH LEMPUNG DENGAN CAMPURAN SEMEN DAN FLY ASH

Abstract

Soil improvement is common in construction work with the aim of increasing the carrying capacity of the soil so that it can withstand the burden of construction on it. In this study, researchers will use cement and fly ash as added ingredients for clay soil stabilization. The purpose of this study was to determine the characteristics and physical properties of clay in Tenayan Raya, Pekanbaru and determine the effect of the addition of cement and fly ash to clay. The research material used was disturbed sample, which is a mixture of clay soil with cement and fly ash with the percentage of each mixture. Specimens that have been according to plan and are divided into several variations of the mixture, then made compaction using a proctor test equipment and then tested with CBR test equipment. The results of the study show that the clay soil of Tenayan Raya has a high plasticity with a liquid limit of 51.80%, a plastic limit of 20.88%, and a plasticity index of 30.93%. The addition of cement and fly ash can reduce the liquid limit value and the plasticity index as well as increase the plastic limit value and the highest percentage of CBR value occurs in Clay 65% ​​+ Cement 20%, Fly Ash 15%, with a CBR value of 52.32%. So as to increase the bonding capacity between the granules, and the ability to interlock between granules is high.