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Performance and mix ratio optimization test of building solid waste modified double liquid grouting material.
Tong Wu1, Lanjun Liu2, Yanmin Chen1
1School of Intelligent Construction, Shangqiu Institute of Technology, Shangqiu, 476000, China.
Scientific Reports
|April 24, 2026
Summary
This study optimized construction modified solid waste double liquid grouting material (CSWMLGM) using red brick powder and a water-reducing agent. The optimized mix enhances fluidity and compressive strength, providing a new basis for sustainable building materials.
Area of Science:
- Materials Science
- Civil Engineering
- Sustainable Construction
Background:
- Construction solid waste presents disposal challenges.
- Developing high-value grouting materials from waste is crucial for sustainability.
- Optimizing mix ratios is key to material performance.
Purpose of the Study:
- To investigate the impact of red brick powder and water-reducing agent content on CSWMLGM.
- To optimize the mix ratio for improved fluidity and compressive strength.
- To develop a predictive model for CSWMLGM performance.
Main Methods:
- Response surface methodology (RSM) was employed.
- Regression models were constructed for fluidity and compressive strength.
- Desirability function was used for mix ratio optimization.
Main Results:
- Fluidity and compressive strength regression models showed high precision and reliability.
- Significant interactions were identified between mix components and material properties.
- The optimal mix ratio was predicted as 1.08 (water-cement ratio), 23.2% (red brick powder), and 0.26% (water-reducing agent).
- Predicted values showed less than 5% relative error compared to experimental data.
Conclusions:
- The developed RSM model accurately predicts CSWMLGM performance.
- The study provides a scientific basis for optimizing grouting materials using construction waste.
- This research supports the high-value utilization of building solid waste.
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