Experimental Study on Mechanical Properties of Concrete by Incorporating Fly Ash, Metakaolin & Brick Powder by Partial Replacement of Cement for M35 Grade of Concrete

The use of cement supplementary materials in structural concrete is widely accepted by the construction industry for technical, economical and environmental reasons firstly this study aimed to investigate crushed clay brick, originated from demolished masonry was ground in the laboratory and used as a partial replacement of cement. Three replacement levels 10%, 20%, 30% were compared with conventional concrete. Addition of brick powder in concrete decreases the strength. At 10% replacement level 28 days compressive strength will be approximate to control concrete. The best replacement level 10% will be taken as a reference and another two supplementary cementitious materials were metakaolin and fly ash. The replacement levels of metakaolin and fly ash are: 5%, 10%, 15%, 20% these will be blended with 10%level of brick powder and cement separately ([C+10%B.P+M.K], [C+10%B.P+F.A]). The optimal replacement of the cement, brick powder and metakaolin based mixtures [C+10%B.P+15%M.K]. The optimal replacement of cement, brick powder and fly ash based mixtures is [C+10%B.P+15%F.A].