| Title: | Understanding the reactivity of biomass ash from a pulverised fuel combustor |
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| Authors: | ID Carević, Ivana (Author)
ID Serdar, Marijana (Author)
ID Ducman, Vilma (Author)
ID Dolenec, Sabina (Author)
ID Mrak, Maruša (Author)
ID Štirmer, Nina (Corresponding author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.1016/j.cscm.2026.e06244
 PDF - Presentation file, download (4,86 MB)
MD5: B378866367EBDA2746A9E0E9CE3D3A80
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | 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. |
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| Keywords: | biomass ash, reactivity, recycling, properties, perspective |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 16.06.2026 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2026 |
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| Number of pages: | str. 1-15 |
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| Numbering: | Vol. 25, [article no.] e06244 |
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| PID: | 20.500.12556/DiRROS-31174  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 2214-5095 |
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| DOI: | 10.1016/j.cscm.2026.e06244 |
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| COBISS.SI-ID: | 284173571 |
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| Copyright: | © 2026 The Authors |
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| Note: |
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| Publication date in DiRROS: | 17.07.2026 |
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| Views: | 25 |
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| Downloads: | 10 |
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