Abstract
Concrete is accepted globally as a fascinating building material because of its adoptability. Cement is the main component used for the manufacture of concrete and it is an eco-detrimental product. In order to reduce carbon emissions, cement use must be restrained and alternative materials shall be identified. One such option with improved durability is geopolymer concrete (GPC). Instead of cement in concrete, industrial wastes such as kaolin, ground granulated blast furnace slag (GGBS), fly ash, rice husk ash, red mud, and other byproducts can be used as binder materials in GPC. GGBS was adopted as a binder material and traditional aggregates were used along with GGBS to prepare geopolymer concrete. As activator fluid, activator solutions of 8, 10, and 12 molarities were employed. GPC of various molarities were examined for workability, mechanical properties and durability. At 28 days, GPC prepared using 12 M activator solution exhibitted compression strength of 86.99 MPa. Mechanical properties will increase with increase in the molarity of the alkaline solution. Linear relationships existed between compressive strength and split tensile; and with flexural strength. But increase in molarity makes the GPC less workable. GPC makes the matrix more durable by being able to withstand the entry of chemicals and water. Thus, GPC is an eco-friendly alternative to traditional concrete.
Published Version
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