1. Optimization of SiO2/Al2O3 Ratio in the Preparation of Geopolymer from High Calcium Fly Ash. Issue 1 (December 2020) Authors: Faradilla, F S; Nugroho, D T; Hidayati, R E; Nurlina, ; Bayuaji, R; Hartanto, D; Fansuri, H Journal: IOP conference series Issue: Volume 616:Issue 1(2020) Page Start: Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗