Impact of M Sand and Olivine Sand in Assessment of Mechanical Properties of Geo Polymer Concrete at High Temperature

Authors -Kavipriya S, Muthu S, Riyaz S, Sathya J

Abstract- — Geopolymer Concrete is a type of concrete that is made by reacting aluminate and silicate bearing materials with a caustic activator. Commonly, waste materials such as fly ash or slag from iron and metal production are used, which helps lead to a cleaner environment. This is because the waste material is actually encapsulated within the concrete and it also does not have to be disposed of as it is being used. This paper focuses on varying the proportions of M sand and Olivine sand (50:50, 60:40, 70:30) in geopolymer concrete and evaluating its strength characteristics at extreme temperature by adding fibres at different proportions with 0.2%,0.4%,0.6%,0.8%,1.0%. The alkaline activator solution used is a mixture of 10 molar Sodium hydroxide and Sodium silicate in the ratio 1:2. The specimens are cured using oven at 60°C.The mechanical strength properties such as compressive strength, split tensile strength and flexural strength tests are conducted at its 28 day. The test results revealed that very high early age strength was achieved in all the proportions, noticeably in 70:30 proportions with 0.8% addition of fibres.

DOI: /10.61463/ijset.vol.11.issue2.386