Correlation between physical and chemical properties of wood biomass ash and cement composites performances
Ivana Carević, Ana Baričević, Nina Štirmer, Jelena Šantek Bajto
Abstract
Wood biomass is a viable alternative to coal, while the ashes generated from biomass combustion appear as a serious environmental and economic issue. This research focuses on use of wood biomass ashes (WBA) as a supplementary cementitious material. Fly WBAs, originating from 6 power plants, were used as collected to replace 5, 10, and 15 wt% of cement in pastes and mortars. Statistical analysis was performed to quantify the effect of WBAs physical and chemical properties on the properties of composites with different WBA content. Analysis showed significant contribution of alkalis and LOI values on properties of WBA cementitious composites.
Topics & Concepts
Biomass (ecology)Fly ashCementitiousMaterials scienceCementComposite materialPulp and paper industryMortarCombustionEnvironmental scienceWaste managementAgronomyChemistryEngineeringOrganic chemistryBiologyRecycling and utilization of industrial and municipal waste in materials productionConcrete and Cement Materials ResearchCoal and Its By-products