20.500.12556/DiRROS-31174 Understanding the reactivity of biomass ash from a pulverised fuel combustor The manuscript provides long-term microstructural study on as-collected wood biomass ash (WBA) from a pulverised fuel combustor. Analytical methods, including isothermal calorimetry, X-ray powder diffraction, thermogravimetric analysis, and mercury intrusion porosimetry, were used to assess reaction kinetics, phase development, and porosity. Results show that WBA in- creases water demand due to its irregular particle morphology and high content of unburnt carbon and carbonates, causing a dilution effect that delays hydration reactions and extends the induction period. Microstructural analysis revealed significant changes in porosity, with an in- crease in pores between 0.01–0.05 μm during early hydration. As a result, early mechanical strength is reduced. Over time, the pozzolanic activity and carbonation of WBA enhance compressive strength, improving long-term performance. The study highlights the potential of WBA as a sustainable cement substitute and emphasises the need for further research to optimise its integration into concrete applications and assess its durability in various environments. biomass ash reactivity recycling properties perspective biomasni pepeli reaktivnost reciklaža lastnosti perspektive true false true Elsevier Angleški jezik Slovenski jezik © 2026 The Authors Neznano 2026-07-17 14:06:41 2026-07-17 14:09:19 2026-07-18 03:45:04 0000-00-00 00:00:00 2026 0 0 str. 1-15 [article no.] e06244 Vol. 25 Dec. 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2026-06-16 620.1/.2 2214-5095 10.1016/j.cscm.2026.e06244 284173571 https://doi.org/10.1016/j.cscm.2026.e06244 0 f9c86046-81d7-11f1-a19f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=48087 RAZ_Carevic_Ivana_2026.pdf RAZ_Carevic_Ivana_2026.pdf 1 B378866367EBDA2746A9E0E9CE3D3A80 6ff3b337ea8f9d85e1131ec8f9695dd2d9c478f0300aa25c5191069f1ae696ac 372d0b56-81d8-11f1-a19f-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=48088 Zavod za gradbeništvo Slovenije 0 0 0