Abstract
In order to study the influence of red brick powder and water reducing agent content on the fluidity and compressive strength of construction modified solid waste double liquid grouting material (CSWMLGM), the response surface regression model was constructed, and the experimental measured values and predicted values were compared and analyzed. The CSWMLGM optimized mix ratio was obtained by combining the desirability function. The results show that the fluidity regression model has high precision and strong reliability. The regression model of compressive strength is significantly effective and can be used for the analysis of test results. The interaction between water cement ratio and red brick powder content, water cement ratio and water reducing agent content has a significant effect on fluidity. The interaction between water-cement ratio and red brick powder content, water-cement ratio and water reducing agent content, red brick powder and water reducing agent content has a significant effect on compressive strength. The model predicts that the optimal mix ratio is water-cement ratio of 1.08, red brick powder content of 23.2%, and water reducing agent content of 0.26%. The absolute value of the relative error between the predicted value and the experimental value is less than 5%. The model can reveal the mechanism of the material and provide a new scientific basis and reference for the optimization of the mix ratio of high-value double-liquid grouting materials for building solid waste.
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Acknowledgements
Conceptualization, T.W. and J.L.; Methodology,J.L. and Y.C.; Investigation, .Y. and H.X; formal analysis, T.W.; Writing—original draft, T.W. and J.L. All authors have read andagreed to the published version of the manuscript.
Funding
Research and Application of Grouting Transformation Technology for High-Pressure Micro-Fractured Aquifers at the Bottom of Coal Seam: A Key Scientific Research Project of Higher Education Institutions in Henan Province (24B440003).
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Wu, T., Liu, L., Chen, Y. et al. Performance and mix ratio optimization test of building solid waste modified double liquid grouting material. Sci Rep (2026). https://doi.org/10.1038/s41598-026-49300-w
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DOI: https://doi.org/10.1038/s41598-026-49300-w
