Pengaruh Pemakaian Besi Scrap Mesin Bubut Terhadap Kuat Tekan Beton (Penelitian)

Abstract

Concrete is one construction material that has been commonly used for buildings. Concrete formed from aggregate mix (delicate and rough) with a paste of cement, water, and other additional material value comparison with certain. This research used an additional ingredient iron lathe scrap that aims to improve the quality of concrete. The percentage of these additional material was taken from the aggregate smooth weight after reckoning design composition. Iron lathe scrap are incorporated into the concrete mix that is 10% and 40%. Held on the testing of concrete fresh and on concrete that has been hardened at the age of 28 days. From the research, for testing concrete fresh obtained value slump 6 cm, 4 cm, and 2 cm. For testing of concrete that has hardened with variations of the addition of iron lathe scrap 10 percent, press the value of strong concrete increased by 5,99% of the value of strong concrete normal press planned (K-225). While with variations additional iron lathe scrap 40%, the strong press concrete down by 6,82 % of the strong press concrete normal planned but still included in K-225.