Strength and stability characteristics of Geopolymer concrete

Global Warming is a major problem that world faces today. Production of Portland cement is main concern in emission of pollutants. Geo-polymer concrete is a best alternative to OPCC. Geopolymers are chains or networks of mineral molecules linked with co-valent bonds produced by a polymeric reaction of alkaline liquids with Al-Si minerals. METHODOLOGY: Four mixes are made in the ratio Mix A(70%GGBS & 30% RM), Mix B(73%GGBS & 27% RM), Mix C(76%GGBS & 24% RM), Mix D(80%GGBS & 20% RM). Specimens are heat cured for 1day. CONCLUSION: Mix D shows best properties owing to the hybrid fibers and Red Mud reduction. It is seen that, there is about 30% increase in flexural strength when compared to OPCC. Specimens attained their properties at temperature of 40-50oC. Hence sunlight curing is sufficient. GPC exhibited strength gain of 23% when contacted with 5% H2SO4 and 17% with 5% Na2SO4 while OPCC suffered losses.

Autorentext

Alwis Deva Kirupa J P holds an ME in Structural Engineering and worked as an Assistant Professor in Department of Civil Engineering at Ponjesly College of Engineering, Nagercoil, Tamil Nadu from June 2014 till May 2016. Areas of interest are finite element analysis, Engineering geology and concrete technology