Properties characterization and microstructural analysis of alkali-activated solid waste-based materials with sawdust and wastewater integration
2025

Using Sawdust and Wastewater in Eco-Friendly Building Materials

publication 20 minutes Evidence: moderate

Author Information

Author(s): Li Liang, Zhao Xianhui, Wang Haoyu, Cao Jianran, Zhao Xian-en

Primary Institution: School of Civil Engineering, Tianjin Renai College, Tianjin, China

Hypothesis

This study investigates the effects of sawdust particles and sawdust wastewater on the properties of alkali-activated composites.

Conclusion

The study found that incorporating sawdust wastewater improves the mechanical strength and reduces drying shrinkage in alkali-activated composites.

Supporting Evidence

  • Increasing sawdust content reduces fluidity and electrical conductivity of the composites.
  • A 12-hour alkali treatment of sawdust particles enhances the mechanical properties of the composites.
  • Incorporating sawdust wastewater improves long-term mechanical strength and reduces drying shrinkage.

Takeaway

This research shows that using sawdust and its wastewater can make building materials stronger and better for the environment.

Methodology

The study involved mixing sawdust particles and wastewater with various solid wastes to create alkali-activated composites, followed by testing their physical and mechanical properties.

Limitations

The study does not address the variability of wastewater from different sources, which may affect the results.

Digital Object Identifier (DOI)

10.1371/journal.pone.0313413

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