The combustion characteristics of pulverized coal when using blast furnace slag charged with iron ore containing rare earth elements as a composite catalyst were investigated by thermo gravimetric analysis. The results show that the combustion char acteristics of pulverized coal loaded with 21.3% by weight of blast furnace slag containing 15% rare earth ore are better than those of others. It i...

Abstract This work aimed to evaluate the role of addition blast furnace slag for formation reaction products and strength development volcanic ash-based phosphate geopolymer. Volcanic ash was replaced by 4 6 wt% ground granulated accelerate kinetics. Then, influence boric acid controlling setting kinetics reactions also evaluated. The results demonstrated that competition between dissolution as...

An experimental study of interactions between hydration and early drying was carried out on a mortar with GGBFS volume as high the OPC volume. 1 day after casting, subjected to 6-month unidirectional in natural surrounding conditions laboratory. At end exposure period, Portlandite content, water porosity pore size distribution were found be not uniform along material. When approaching exposed s...

Portland cement, which has been used as an unrivaled binder material since its development become one of major sources greenhouse gas emission. Compared with the conventional alkali-activated materials based on principle activating precursor by means alkali activators have comparable engineering properties and lower CO2 emission during production. In this study, effect modulus compressive stren...