SAND BRICK USING CRUSHED WASTE GLASS TO REPLACE SAND PARTIALLY

Abstract

The making of a sand brick using crushed waste glass is to recycle the waste material such as glass to replace aggregate in sand brick. This project focuses on the waste material in the production of sand brick to go eco-friendlier, cheaper, and strong. The replacement of waste glass is based on the problem that occurs which is objects from glass will no longer be used and cause increased waste. The main material for making this sand brick are cement, crushed waste glass coarse aggregate, and water using the ratio of 1:6 composition of (cement: sand). The waste glass will be crushed and added into the mixture of sand brick with amounts of 0%, 10%, 15%, and 25% and it will be molded into a size 200x 100x 60 mm for 24 samples. It will have dried for 24 hours. The final product will be run with several laboratory tests such as a crushing strength test and water absorption test to determine its strength and ability. The test result of each sample will be evaluated and analyzed based on the standard for sand brick which is BS 6073-1981: Specification for Precast Concrete Masonry. Thus, we can determine the best percentage of crushed waste glass according to the strength of the brick when the load is subjected and the water-absorbing percentage which has been valued. Based on the result obtained from the strength compressive test the best value to replace crushed waste glass is 5% which gained an average of 14.8 N/mm². That is the highest strength value if compared to the other brick samples. Furthermore, the water absorption test shows the result that the brick containing 5% of crushed waste glass has the best average which is 7.93%. The lowest the brick absorbs the water which means the brick has good characteristics. In conclusion, the replacement of crushed waste glass in sand brick can be used in 5% and it makes the brick more durable because it shows good strength values and low water absorption rates.