Experimental Investigation of Effect of Temperature and Molarity on Compressive Strength of Geopolymer Concrete

Ganpat S. Shinde; R. S. Londhe

doi:10.37591/joeam.v12i3.6190

Abstract

Geopolymer concrete is a relatively new development in the field of concrete, in which regular Portlandcement is completely replaced with pozzolanic material such as fly ash, which is then activated by astrongly alkaline solution to function as a binder in the mix. As a result, we must manufactureenvironmentally friendly concrete to address issues such as global warming and CO2 emissions intothe atmosphere generated by standard Portland cement production. An experimental investigation havebeen carried to find out the most acceptable concentration of molarity and temperature for geopolymerconcrete to obtain desired strength at needed workability. The variable parameters of the investigationwere molarity and temperature variation. The molarity concentration have been varied from 6M to 13Mand temperature from 60°C to 120°C by heat curing and ambient curing for 7 days and 28 daysrespectively. As a result of this 78 specimen were cast and tested, to find out compressive strength ofgeopolymer concrete. The study revealed that compressive strength of geopolymer concrete increaseswith increase in molarity upto 12.5M and at. Temperature upto 110°C. it was discovered that thecompressive strength of geopolymer concrete advances, as the molarity of sodium hydroxide increases,as does the curing temperature (within restricted limit).

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