PENGARUH PENAMBAHAN PASIR TERHADAP TINGKAT KEPADATAN TANAH LEMPUNG

Abstract

Soil has an important role in civil engineering that must be considered in the construction world. One of
the things that planners and builders often face (especially for a road pavement), is how to deal with poor
soil so that it can be used as a support material. Stabilization using sand is one way to meet the desired
soil strength. This research was conducted in the laboratory by means of compaction testing using a
standard proctor, to obtain the maximum dry density and optimum moisture content. The test object is clay
mixed with sand with a percentage of 5%, 10%, 15%, 20% then the sample is tested for compaction. the
maximum density of the original clay is 1.341 kg/cm3 with an optimum moisture content of 30.50%. The
addition of sand in the soil increases the dry density of the soil linearly. It was observed that the sand
addition variable of 5%, 10%, 15 and 20% had an effect of 98.1% on the dry density of the soil, while the
remaining 1.9% was influenced by other variables outside the study. Without the addition of sand, the dry
weight of the soil was 1.341 kg/cm3, then increased by 0.0083 kg/cm3 for each addition of 1% sand content.
The dry density of the soil increases with the addition of the sand content, indicating that the maximum dry
density of the soil also increases