Compressive Strength of Concrete with Substitution of Fine Aggregate in 10%, 15% and 20% by Steel Slag

Abstract

The objective of the investigation is to calculate the compressive strength of concrete f'c= 210 kg/cm2 by replacing the fine aggregate with steel slag in Cajamarca - Peru, which aims to compare the axial compressive strength between a concrete with steel slag vs a concrete without steel slag (conventional). Likewise, the research approach is quantitative, because 48 concrete test tubes were made, of which 36 test tubes were used; 9 test tubes with 10% steel slag, 9 with 15% steel slag, 9 with 20% steel slag and 9 that will be the standard test tubes (without slag), which were tested at 7, 14 and 28 days of curing, having as a result that the concrete with steel slag exceeds the resistance f'c= 210 kg/cm2 of a conventional concrete, which at 10% of steel slag after 28 days reaches a maximum resistance of 222.36 Kg/cm2, at 15 % at 238.00 Kg/cm2 and 20% at 232.39 Kg/cm2. Finally, it is concluded that by replacing the fine aggregate with steel slag, the compressive strength of concrete improves, helping to reduce the exploitation of quarries and in the same way environmental pollution.