Study of Improving Soil Using Permit, Corn Ash and Sodium Silicate

Soil that has low bearing capacity has a bad impact on the construction that
is built on it as a result of which the building is easily damaged such as lifting the
foundation on the building and causing cracks and shifting on the road. This research
uses experimental laboratory methods. Soil samples used were taken from Lembang
Tondon Siba'ta, Tondon District. Corn cobs were taken from Sa'dan Marante, Sodium
silicate is obtained from chemical figures and palm fiber taken from Buntu Tagari and
then tested for soil physical characteristics and soil bearing capacity in soil samples with
a mixture of 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.