Abstract
The development of green and sustainable materials in the building industry is seen as a potential alternative to the use of Portland cement, and an opportunity to convert a variety of waste into useful byproducts. One key driver in geopolymer development is the desire to reduce greenhouse gas emissions from the production of cement products. In this dynamic, green geopolymer pastes were prepared by using easily available Completely Decomposed Granite (CDG) soil with partial addition of low-calcium fly ash (FA). In the mixture, Na2SiO3 and NaOH were used as the reactive solution to dissolve silica and alumina in the CDG and FA particles. Experimental results showed that the Completely Decomposed Granite (CDG) can be synthesized with an alkaline activator, with good compressive resistance, high degree of binding and compact microstructure.
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