The study was to test the properties of the soil. Koh Chang, Trat. Glass powder is mixed with various formulations. This puts the property in the adoption of standards-based foundation layer construction of the highway. By testing for the ability to gain weight and the ability to shear various formulations. By bringing a piece of glass that is then used as a garbage left on the island for use in Highway Engineering. To save the cost of transporting waste from the island to the mainland.