Utilization of Alccofine and Bottom Ash in Cement Concrete

Current research is aggravated as a result of environmental problems in association with the clearance of waste and crisis in the availability of sand. Also, green house emissions from manufacturing of concrete are reduced by partially replacing cement with industrial by-product. Current research evaluates the combined outcome of Alccofine and bottom ash with the part substitution of cement and fine aggregates, respectively, in concrete. An experimental program is formulated in which four different mixtures are prepared containing 0% (MB1 mix), 20% (MB2 mix), 30% (MB3 mix) and 40% (MB4 mix) bottom ash as part substitution of fine aggregates. It was found that both workability and compressive strength dwindled with the raise in substitution level, which reduced much for MB4 mix. Therefore, to evaluate the outcome of Alccofine as a part substitution of cement, MB4 mix was selected. The cement was partially replaced with Alccofine by 5% (MB4A5 mix), 10% (MB4A10 mix), 15% (MB4A15 mix) and 20% (MB4A20 mix) in the mix containing 40% bottom ash as a part substitution of fine aggregates. After analyzing the results, it was concluded that workability and strength, both improved on partially replacing cement with Alccofine up to 15%, after which it decreased. A high strength concrete was developed using Alccofine as a mineral admixture.