Penggunaan Limbah Nikel Sebagai Material Subtitusi Agregat Kasar Pada Beton K.250

The purpose of this study was to Analyze the characteristics theaggregates used in concrete mixtures and analyze how muchincrease compressive strength with a variation ofnickel slag substitution 0%, 5%, 15%, 25% compared normalconcrete. material examined are watercontent, sludge content, specific gravity absorption, volumeweight, abrasion los angeles machines, filter analysis.While large increase can betested at age 7 days, 14 28 days 35 days. From results analysis nickel slagwaste mixes meet test standards concretemixtures, moisture content 0.86%, 0.44%,specific 2.94 gr / cm3, volume weight 1.76 cm3,abrasion 36.07%. And ofconcrete 15%,25% normal is increasing. highestpercentage found inconcrete between 15% avariation age, percentage increasein value 13.13%.