Soil Improvement for clay with limestone and glass slag based on CBR value

Abstract

Trash is one of the biggest problems for the cities in Indonesia, especially the city that has a relatively big number of citizens. One of them is glass, where glass is a material that is not decomposed by soil biologically. The negative impact from glass waste is it harms the environment. The objective of this research is to determine whether glass can be useful as the material for clay stabilization and to determine the bearing capacity using limestone and glass slag and also to determine bearing capacity using only the limestone. The mixture used in this research is 2% limestone and 4% limestone with additional glass slag of 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% and 10%. Based on the research, it is determined that the biggest CBR value at a mixture of 2% limestone and 10% glass slag is 8.86%, and at variation of mixture of 4% limestone and 10% glass slag with CBR of 10.5%.