Rice Husk Ash based Sodium Silicate as the Alkali Activator in slag based Geopolymer ConcreteA. Chithambar Ganesh, Hemadri Prasad Raju, Leema Margret and Usha JinendraE3S Web of Conf., 559 (2024) 04003DOI: https://doi.org/10.1051/e3sconf/202455904003