USE OF ZEOLITE IS ACTIVATED AS SUBSTITUTION OF CEMENT FOR PRICE AND COST
The number of economic needs is one of the fundamental aspects to support the survival of every individual in an area. If seen in general, the cost of building the building and residential community still use building materials and installation costs are relatively higher. With the advancement of technology has found a lightweight brick that has better strength, lighter, faster installation and environmentally friendly, so many people began to switch to using lightweight bricks. For now the price of lightweight brick is still expensive, but this deficiency is covered with the speed of mounting and light weight so overall lightweight brick usage on certain patterns is very profitable. The use of cement on lightweight bricks leads to high production costs. With the above problems we have a breakthrough to replace the cement by using zeozolites containing silica compounds that resemble one of the cement compounds. In this research, cement replacement with Zeolite is 20%, 40% and 60%. Before use Zeolite was first activated using Fly Ash ratio of 65% Zeolite: 35% Fly Ash and 50% Zeolite: 50% Fly Ash, also activated using Ca (OH) 2 ratio 65% Zeolite: 35% Ca (OH) 2 And 50% Zeolite: 50% Ca (OH) 2. Thus, there are 15 compositions including the control composition, each composition will be made up of 10 specimens. Hypothesis testing using two way anova, tested is the effect of cement change treatment with Zeolite and comparison of Zeolite composition with Fly Ash and Ca (OH) 2 to compressive strength, absorption and cost. Keywords: Zeolite, Cement, compressive strength, Cost