A PARTIAL REPLACEMENT OF SAND WITH FOUNDRY SAND IN BAGASSE ASH CONCRETE

Abstract

This study examines the feasibility of the partial replacement of fine aggregate in Bagasse Ash Concrete (BAC) with foundry sand� an industrial waste produced from foundries. Preliminary trial mixes were cast and tested to confirm the optimum proportion for the replacement of Cement in Ordinary Portland Cement (OPC) Concrete with Bagasse Ash, 20 % Bagasse Ash(BA)replacement of Cement was found to be practical and was therefore adopted. Then, the sand in the adopted mix was replaced by foundry sand in proportion of 20 %,40 %.60 %.80 % and 100 % of the sand. The compressive strength at 28 days of the BA/OPC concrete dropped by about 24 % at 20 % BA replacement. A further decreased in strength of about 15% of ire original strength of the OPC concrete was obtained for a mix ratio 40 % replacement of sand by foundry sand; the 40 % mark was considered practical....