Utilization of Ceramic Waste as Coarse Aggregate and the effect on Concrete Compressive Strength

In accordance with the development of knowledge, ceramics are all items made from non-metallic inorganic materials with silicate rock soil materials whose manufacturing process is accompanied by a combustion process at high temperatures. Seeing the potential for clay soil in Indonesia is very large, of course, many industrial activities grow so that they can provide benefits for humans, but apart from the benefits there are also impacts from industrial activities. One of the impacts of industrial activities is the waste, there are industrial wastes that can damage the environment or are environmentally friendly. The method used in this study is an experimental method, namely an experiment that aims to investigate the relationship between the compressive strength of normal concrete and concrete that uses ceramic shards as a filler material for a portion of the weight of coarse aggregate. The test objects made in this experiment were 9 samples in the form of concrete cylinders with a size of 15 cm x 30 cm which would later be tested for the compressive strength of concrete using SNI 03-2834-2000 guidelines. The research objectives were to obtain the compressive strength of concrete using ceramic waste materials as an additional coarse aggregate and to obtain the results of a comparison of normal concrete compressive strength with the compressive strength of concrete using ceramic waste materials. The compressive strength of concrete using ceramic waste material as an additional coarse aggregate with a percentage of 15% and 20% ceramic waste is as follows: Trial mix with 15% ceramic gives a compressive strength of 23.91 MPa and trial mix with ceramic 20% days gives a compressive strength of 23 .89 MPa. From the results of this test the percentage of ceramic 20% has a greater compressive strength compared to the percentage of ceramic 15% and the comparison of the compressive strength values of normal concrete and concrete using ceramics proves that the compressive strength of concrete is greater than normal concrete. big. It can be seen from the compressive strength of concrete from 0% to 15% which has an increase of 0.59 MPa and the compressive strength of slate from 0% to 20% has an increase of 0.98 MPa.