STUDY OF IMPROVING SOIL SUPPORT USING THE PERMIT, CORN ASH AND SODIUM SILICATE Erwanto Waldo1, Parea R. R.2, Ermitha A.2
1 The Christian University of Indonesia Toraja, Rantepao, Indonesia
2, 3 The Christian University of Indonesia Toraja, Rantepao, Indonesia
Abstract
Soil that has low bearing capacity has a negative impact on the construction that is built on it. Stabilization is a form of soil improvement. Stabilization can use added materials such as fiber and charcoal ash. In this research, using corncob ash, palm fiber and sodium silicate. The purpose of this study was to determine the bearing capacity of the soil by mixing palm fiber, corncob ash and sodium silicate. This research uses experimental laboratory methods. Soil samples used were taken from Lembang Tondon Siba^ta, Tondon District. Corn cobs ashes are taken from sa^dan marante, and sodium silicate from palm fiber. The soil physical characteristics and carrying capacity of the original soil were tested and the soil was mixed with sodium silicate, corncob ash, palm fiber and soil without mixture. The results of the research on stabilized soil by adding 0.2% palm fiber, 2% corncob ash and 3% sodium silicate obtained an increase in soil bearing capacity of 9.73% from the original soil and the addition of 0.2% palm fiber, 4% corncob ash and 3% sodium silicate. experienced an increase in soil bearing capacity of 19.91% from the original land. The addition of 0.2% palm fiber, 6% corncob ash and 3% sodium silicate increased the carrying capacity of the soil by 22.30% from the original soil
