The Effect of Matos® and Portland Cement Type V Addition in Peat Soil Stabilization Towards California Bearing Ratio (Cbr) Value in Muaro Jambi
Abstract
Peat is organic soils that have unfavorable characteristics in the construction field which one of them is having a low bearing capacity. Because of these characteristics, it has been some developing method to increase the carrying capacity of the soil, one of them is a method of stabilization. Stabilization method is performed by mixing Matos® Stabilizer and Portland Cement Type V (PC-V) into the soil. Matos® is a fine powder consisting of mineral composition of inorganic additive that serves to stabilize the soil physically and chemically. In addition of being used as a soil stabilizer Matos® on peat, a cementitious material in the form of PC-V is required because Matos® can not work alone. Selection of PC-V is because the cement is more appropiate for construction of buildings on the land / water which contained high sulfate.
Laboratory studies is done to determine the type and physical properties of peat and to determine the strength of the soil bearing capacity before and after through the mixing of additive. Concentration of the mixture used is 10% of PC-V with Matos® variation of 1%, 2% and 3% of the dry weight of the soil with the optimum moisture content. Curing is done for 0, 3, and 7 days and soaking for 4 days.
The addition of PC-V and Matos® to the peat affect the value of water content and density in the CBR test. The test results were obtained for CBR decent enough for the subgrade, which is a mixture of 10% PC-V + 2% Matos® with curing for 3 days and 10% of PC-V + 1% Matos® with curing for 7 days. CBR value for the original peat which is originally 1,615% increase in the presence of a mixture of PC-V and Matos®. CBR test on a mixture of 10% PC-V + 2% Matos® with curing for 3 days increases the soil bearing capacity by 260% of the original value be 5.813% and 10% of PC-V + 2% Matos® with curing for 3 days increases 230% of the original value becomes 5.329%.
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- Civil Engineering [4199]