Premix waste as a partial replacement of aggregate in concrete
Nurul Nadiah, Rosidi
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Premix waste (PW) as a partial replacement of aggregate in concrete. Three percentages to investigate PW as a partial replacement of aggregate which is 20%, 30% and 50% of PW. Slump test and compressive test will carried out in order to investigate the strength of concrete. The objectives of this study is to determine the strength of concrete containing premix waste as aggregate replacement and to compare compressive strength of normal concrete and premix waste concrete. Laboratory process is premix residue was taken and brought to the laboratory, crushing process is done by using a hammer. Waste sifted premix according to the aggregate size of 5 to 50mm. After the sieves used according to the size of aggregates, ready to process the concrete. Based on the test result, 20% of PW the higher strength which is 35.75 MPa of compressive test than other percentages which is 30% and 50%, 33.84 MPa and 28.73 MPa. Moreover, normal concrete is the best of strength and higher than three percentages of PW. The research study has achieved and fulfillsit’s purpose. Thus it can be concluded by referring to the data obtained that the Premix Waste is suitable to use as aggregate replacement in concrete production.