Study of Solid-Liquid Ratio of Fly Ash Geopolymer as Water Absorbent Material Fandi Angga Prasetya, Ndaru Candra Sukmana and Ufafa Anggarini MATEC Web Conf., 97 (2017) 01090 Published online: 01 February 2017 DOI: 10.1051/matecconf/20179701090