Abstract
As in today’s construction industry, concrete is the key component of construction material used worldwide. But the problem of overconsumption of natural resources, heavy emission of CO2, and high consumption of energy while manufacturing are the challenging obstacles in production. Therefore, various studies are performed to get a sustainable and economical construction material that replaces conventional Ordinary Portland Cement (OPC) from industrial wastes like Fly Ash (FA) and Granulated Blast Furnace Slag (GGBS), also using Recycled Concrete Aggregate (RCA) of demolished structures in place of natural coarse and fine aggregate. Hence, the final outcome has resulted in a sustainable construction material that is formed by the alkali activation of source materials like GGBS and FA with a combination of metal hydroxide and silicate known as Geopolymer Concrete (GPC); that is eco-friendly for the environment through suppressing the issues of waste disposal and global warming. This paper presents a literature review on the mechanical properties of FA and GGBS-based GPC. The mechanical properties that have been reviewed include compressive strength, flexural strength, split tensile strength, and modulus of elasticity. The optimum proportion of RCA, aluminosilicate, activating solution, molar concentration, water to binder ratio (w/b), rest period and curing temperature, etc. are reported to generate an efficient mix. Also, various existing gaps and future scope are discussed as per the comprehensive literature survey.
Published Version
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