As a relatively new material, geopolymer concrete offers the benefits as a construction material for sustainable development. It utilized waste materials such as recycled concrete sludge, fly ash and etc. It has a very low rate of green house gas emission when compared to ordinary Portland cement. In this study, the component of geopolymer is recycled concrete sludge, metakaolin and water glass, NaOH and KOH are used as alkaline activator. To improve the mechanical properties, silica fume is also added as a bonding matrix, and the specimens are cured in the air, after that their mechanical properties like compressive strength and bending strength is measured and the microstructures are investigated by SEM as well.
Yang, Z., Ha, N., Jang, M., Hwang, K., Jun, B. and Lee, J. (2008). 'Performance of Concrete Sludge Based Geopolymer with Different Alkaline Activator'. SET Proceedings, 7(1), pp. 1164-1167. https://doi.org/10.65582/set.2008.157
