Experimental Study on Mechanical Properties of High Strength Glass Fiber Reinforced Light Weight Aggregate Concrete

Over the past few decades, extensive studies were in progress all around the globe in concrete technologyin finding sustainable alternative materials that can partially or fully replace OPC along with therequirements like durability and strength aspects. Among all the available alternative materials, theindustrial waste exhausts like fly ash, silica fume, GGBS, metakaoline and rice husk ash etc., are found to bequite promising. In the present study, a mix design high strength grade concrete of M60 is produced by usingbinary blending technique by the utilization of Silica fume(SF) and Metakaoline(MK) as partial replacement byweight of cement at different blended percentages ranging from 0-30% in the increments of 10% along withglass fibers having aspect ratio of 100. The different proportions of glass fibers are added in the volumefraction percentages of 0.5-2% in the increments of 0.5%. The test results of fiber reinforced specimens withdifferent percentages of binary blend are compared with control specimens to study the behavior of FRCproperties with various percentages of the blends as partial replacement by weight of cement. The testresults concluded that the optimum blended percentage of silica fume and metakaoline is 15% i.e.,7.5%SF+7.5%MK along with SP percentage as 1.5% and glass fiber percentage as 1.5% when compared withthe control mix. Further, light weight aggregate i.e., pumice stone is replaced to this mix to coarse aggregateat percentages of 25%,50%,75% and 100% respectively and the compressive strength characteristic alongwith density of concrete was studied and reported