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This research aims to develop a sustainable alkali-activated binder using biomass ash to reduce CO2 emissions and landfill waste.

February 26, 2026Journal of Materials in Civil Engineering

Influence of Thermomechanical Processing of Biomass Ash on Mineralogical and Microstructural Evolution of Alkali-Activated Biomass Ash Binder

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This research aims to develop a sustainable alkali-activated binder using biomass ash to reduce CO2 emissions and landfill waste.
Developed a one-part alkali-activated binder with 71%-77% biomass ash by weight.
Activated biomass ash with a dry mix of CaO and Na2CO3.
Used X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis for microstructural evaluation.
Optimized pre-treatment involving sieving, ball-milling, and calcining at 650°C for 2 hours.
Achieved compressive strengths of 10 MPa for the best-mixed binder, 6 MPa for sieved ash through a 600-μm mesh.
Demonstrated the formation of calcite and gaylussite intermixed with amorphous SiO2 and calcium silicate hydrates post-activation.
Identified a heterogeneous microstructure with silica gel agglomerations and varied interactions among phases.

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Implication

Research demonstrates the development of a strong alkali-activated binder from biomass ash, suggesting environmentally friendly construction solutions.

Cite This Study

Ballinas et al. (2026) studied this question.

synapsesocial.com/papers/699fe40c95ddcd3a253e8424 https://doi.org/10.1061/jmcee7.mteng-21896

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Implication

Research demonstrates the development of a strong alkali-activated binder from biomass ash, suggesting environmentally friendly construction solutions.

Influence of Thermomechanical Processing of Biomass Ash on Mineralogical and Microstructural Evolution of Alkali-Activated Biomass Ash Binder

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Discussion

Implication

Cite This Study

Influence of Thermomechanical Processing of Biomass Ash on Mineralogical and Microstructural Evolution of Alkali-Activated Biomass Ash Binder

Key Points

Discussion

Implication

Cite This Study

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