A NOVEL GREEN SOLUTION TO MITIGATE GREEN HOUSE GAS
EMISSION FROM CEMENT INDUSTRIES – GEOPOLYMER
A. Ranganathan and R. Malathy
Abstract
Renewable energy sources are being used throughout the world and one of these is Thermal waste. In
order to address environmental effects associated with ordinary cement, there is need to use other binders
to make concrete. Hence environmental preservation has become a strong driving force behind the search
for a new sustainable and environmental friendly cementitious material. Towards this, Fly ash is being
studied as a candidate material. It is no longer a waste product, but a eco-product available in abundance
from coal fired power plants in India. An effort in this regard is the development of geopolymer products,
synthesized from the materials of geological origin or by product materials such as fly ash, which are rich
in silicon and aluminium. Geoplymer is a material, introduced by Davidovits in 1978. Geopolymer is a
new product in which no cement and no water is added and it is a mixture of source material such as flyash
and alkaline liquids. Alkali-Activated fly ash is an innovative breakthrough, which is free from hydration
process, alkali-aggregate reaction and highly durable in aggressive environments. This cement is more
eco-friendly, and high strength when compared with ordinary Portland cement. This innovative Geopolymer
products can be used for all pre fabricated structures and it is a best alternative for ordinary concrete. This
experimental study was undertaken to identify the correlation between Non destructive testing (NDT) and
Experimental strengths of Geopolymer concrete and its durability also.. The test results gathered the
comparision between Normal concrete and geopolymer concrete. Good correlation between NDT and
Experimental strengths of gpc was found.
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