Analysis of Mechanical and Durability Characteristics of Concrete using Granite slurry waste and Metakaolin as a partial replacement of Cement

Abstract

Granite is the most widely used construction material which generates granite slurry through its cutting and
polishing process. Disposal of this granite waste leads to health hazards like respiratory and allergy problems to the
people in the world. Utilization of granite slurry waste and metakaolin in concrete can solve many problems related to
waste generation, energy consumption problem, consumption of natural resources, CO2 emission etc. Metakaolin is also
a cementatious material andin cases where insufficient or poor curing concrete structure like the underground structure
which undergo serve loss of compressive strength, use of metakaolin proves to be very useful to modify the properties of
concrete.
In this work, systematic experimental study is carried out of concrete using granite slurry waste and metakaolin to
replace cement at various replacement levels for water cement ratio of 0.45 and required specimens have been cast to
check workability and various strength properties (compressive strength test and flexural strength test). From the results
obtained by various studies, it can be concluded that by using granite slurry waste and metakaolin, modification in
compressive strength is noted and maximum strength has been obtained depending upon replacement level and water
cement ratio. Flexural strength is also influenced by the addition of granite slurry waste and in similar way as of
compressive strength. A decrease in the slump value was also noted with the increase % of granite slurry waste and
metakaolin in concrete.