Abstract

The purpose of this study is to assess the effect of red mud in compensating for ordinary Portland cement (OPC) in concrete manufacture. One set of 30:70, 40:60, 50:50, 60:40, and 70:30 in weight proportions red mud (RM) and fly ash (FA) was used to make this geopolymer concrete, whereas the other set of geopolymer concrete was prepared with the same proportions with red mud and ground granular blast furnace slag (GGBFS). The high alkalinity of red mud, a by-product of alumina production in bauxite processing, has a substantial environmental impact and is useful as a binder for geopolymer concrete. When compared to standard Portland cement concrete specimens, the increases in strength of both sets of red mud-based binary geopolymer concrete specimens were reported to be 21%, 24%, 25%, and 15%, 16% 17% and 18% 11% 7% in ambient curing and 42% 45% 50%, 45% 31% 33% and 37% 27% 24%, respectively. Red mud –ground granular blast furnace slag based binary geopolymer concrete has superior values than the other mix. Compressive strength of geopolymer concrete may reach 31.21 MPa, suggesting it can be utilized as an alternative to cement concrete components in constructions.

Keyword

Red mud (RM), Geopolymer concrete, Molarities, Mechanical properties, Ambient curing, Oven curing.

Cite this article

Chakrapani ET, Ramesh KV, Potharaju M, Patnaikuni Ck

Refference

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