@thesis{thesis,
		author={RAHMAN  YOVI and Yuhanah  Tri},
		title ={PENGARUH PENGGUNAAN LIMBAH BAJA SEBAGAI BAHAN PENGGANTI AGREGAT HALUS PADA CAMPURAN BETON},
		year={2016},
		url={http://156.67.221.169/157/},
		abstract={Concrete is a mixture of Portland cement, water and aggregates with or without additives (admixture) specific. The more widespread use of concrete and an increasing scale development also shows more concrete requirements in the future, thus affecting the development of concrete technology. In the field of materials engineering, scientists continue to conduct research and innovation, including building materials, especially structural components. By trying to utilize industrial wastes to be used in the concrete mix. One of them is the Mill Scale. Mill Scale is a waste steel, Mill Scale can be an alternative option for us to be able to use it as a fine aggregate for concrete, Because it is almost the same with sand. Use of Mill Scale on this research in terms of the test results of compressive strength, porosity testing and the slump test and compared with normal concrete K-300. As for the proportion of Mill Scale in lieu of fine aggregate of 5%, 10%, 15% and 20% of the total volume of fine aggregate demand in a cylindrical mold. Mill Scale presantase can replace the sand with a maximum of 10%, with a compressive strength of 308 269 kg / cm² (Up 1.38% above normal concrete). And decreased the percentage increase of 15% and 20%, where the results of compressive strength of concrete below normal. Values Slump Test all variations of concrete in accordance with the range of values that has been planned (8cm-13cm), with the lowest value of 10.67cm (concrete variations steel waste 10%). Slump Test Value Lowest produce the highest compressive strength value. The smallest porosity value that is 0.62% (concrete variations steel waste 10%) resulted in concrete with compressive strength highest of 308kg/cm². The more solid the greater the compressive strength of concrete.}
		}