Gómez-Casero, Miguel A.Pérez Villarejo, LuisCastro, EulogioEliche Quesada, Dolores2025-02-042025-02-042021-10M.A. Gómez-Casero, L. Pérez-Villarejo, E. Castro, D. Eliche-Quesada. Effect of steel slag and curing temperature on the improvement in technological properties of biomass bottom ash based alkali-activated materials. Constr Build Mater.Volume 302 (2021) 124205.https://doi.org/10.1016/j.conbuildmat.2021.1242051879-0526https://doi.org/10.1016/j.conbuildmat.2021.124205https://www.sciencedirect.com/science/article/abs/pii/S0950061821019656https://hdl.handle.net/10953/4650In this research the effect of the incorporation of black steel slag (BSS) (25, 50 and 75 wt%) into biomass bottom ash (BBA) as precursor in the synthesis of alkali-activated materials was studied. The alkali-activated pastes were cured at two temperatures, 60 and 20 °C. Thermal curing at 60 °C produced an increase in mechanical properties at early curing ages obtaining similar properties at older ages of 90 days. The addition of up to 50 wt% of BSS resulted in alkali-activated cements with increased compressive and flexural strengths. The increase in mechanical properties could be due to the formation of a higher amount of calcium aluminosilicate gel (C-A-H-S) with respect to potassium aluminosilicate gel (K-A-H-S) or to the synergistic formation of C-K-A-S-H gel. Therefore, these specimens can be used as a binding material for concrete production to replace Portland cement, which can lead to significant environmental and socio-economic improvements by reducing CO2 emissions and consumption of natural resources.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Biomass bottom ashsteel slagCuring temperatureAlkali-activated materialsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess