Over the past few decades, extensive studies were in progress all around the globe in concrete technology
in finding sustainable alternative materials that can partially or fully replace OPC along with the
requirements like durability and strength aspects. Among all the available alternative materials, the
industrial waste exhausts like fly ash, silica fume, GGBS, metakaoline and rice husk ash etc., are found to be
quite promising. In the present study, a mix design high strength grade concrete of M60 is produced by using
binary blending technique by the utilization of Silica fume(SF) and Metakaoline(MK) as partial replacement by
weight of cement at different blended percentages ranging from 0-30% in the increments of 10% along with
glass fibers having aspect ratio of 100. The different proportions of glass fibers are added in the volume
fraction percentages of 0.5-2% in the increments of 0.5%. The test results of fiber reinforced specimens with
different percentages of binary blend are compared with control specimens to study the behavior of FRC
properties with various percentages of the blends as partial replacement by weight of cement. The test
results 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 with
the control mix. Further, light weight aggregate i.e., pumice stone is replaced to this mix to coarse aggregate
at percentages of 25%,50%,75% and 100% respectively and the compressive strength characteristic along
with density of concrete was studied and reported
DEVELOPMENT OF ARTIFICIAL HIGH STRENGTH LIGHT WEIGHT AGGREGATE MADE FROM COAL ASH AND EXPANDING SHALE POWDER
