Effect of inclusion of steel fiber & polypropylene fiber on mechanical properties of geopolymer concrete

Civil engineering

Environmental pollution is one of the major problem in the world today. In the construction industry mainly the production of Portland cement causes emission of pollutants which results in environmental pollution. We can reduce this pollution effect on environment, by increasing the usage of industrial by-products in our construction industry. Geo-polymer concrete is one such eco friendly material which is used as alternative to ordinary Portland cement (OPC). GPC result from polymerization process of fly ash and GGBS as a binding material and alkaline liquid. Alkaline solution is sodium silicate Na2SiO3 and Sodium Hydroxide NaOH. This paper presents data on the engineering properties of geopolymer concrete with varying Molarity & different percentage of polypropylene fibers & steel fiber (0.2%,0.4%,0.6%,0.8%,1%). Ratio of Na2SiO3 / NaOH is 2 & Na2O / SiO2 is 2.25. The paper demonstrates that this particular geopolymer concrete complies with relevant performance requirement and thus provides engineer with viable alternative to Portland cement based concrete allowing greatly reduced the embodied energy and carbon dioxide footprint.

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