Utilization of Zeolite Material with Chemical and Physical Activation as SCC Concrete (Self Compacting Concrete)

Concrete is a combination of coarse aggregate, sand, cement, and water. In construction technology that is increasingly developing, it is required to make the answer to the problem of providing constructive materials one of the innovations is that SCC concrete has a fairly high workability value. In previous studies that used zeolite as a substitute for cement for SCC concrete, what was different in this study was that the zeolite material was moderated first by chemical and physical activation. This study aims to determine the effect of zeolite activation on the compressive strength and workability of SCC fresh concrete. In chemical activation using 1 M NaOH and physical activation using a temperature of 250 °C. Activated zeolite was used as a substitute for cement with variations of 0%, 10%, 20% and 30% for each variation of 3 samples. The use of SP is 1.2% by weight of cement. This research provides knowledge about the use of zeolite by being activated first. In the manufacture of SCC concrete using 55% fine aggregate and 45% coarse aggregate and the design quality in this study is 40 MPa with reference to the procedure for making concrete SNI 03-2843-2000 with a sample of 12 cylinders with a diameter of 150 mm and a height of 300 mm. The compressive strength test of concrete was carried out at the age of 28 days of concrete. The results and research indicate that the optimum compressive strength with the use of zeolite in chemical activation is found in the 10% compressive strength variation and on physical activation there is a 20% compressive strength variation.