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Designing the Composition of Cement-Stabilized Rammed Earth with the Association Analysis Application
Wojciech Rogala1, Hubert Anysz1, Piotr Narloch1
1Institute of Construction Engineering, Faculty of Civil Engineering, Warsaw University of Technology, 00-637 Warsaw, Poland.
Materials (Basel, Switzerland)
|April 3, 2021
Summary
This study introduces an innovative algorithm for designing cement-stabilized rammed earth (CSRE) to ensure compressive strength. The method uses local aggregates and association analysis for reliable construction material design.
Area of Science:
- Civil Engineering
- Materials Science
- Sustainable Construction
Background:
- Cement-stabilized rammed earth (CSRE) offers a sustainable and cost-effective building solution.
- Local aggregate sourcing reduces transportation costs, enhancing sustainability and affordability.
- Low cement content in CSRE makes its compressive strength highly sensitive to aggregate composition.
Purpose of the Study:
- To develop an innovative algorithm for designing CSRE compositions.
- To assess the feasibility of achieving specific compressive strengths based on material properties.
- To address the challenge of unpredictable aggregate composition from local sources.
Main Methods:
- Development of a novel algorithm for CSRE design.
- Utilizing association analysis on 582 crash-tested CSRE samples.
- Creation of a spreadsheet application to implement the algorithm.
Main Results:
- The proposed algorithm and spreadsheet enable confident design of CSRE compositions.
- The system accounts for the variability of locally sourced aggregates.
- Multiple strategies are proposed to increase the confidence in achieving target compressive strength.
Conclusions:
- The developed algorithm provides a reliable method for designing CSRE with predictable compressive strength.
- This approach enhances the viability of CSRE as a sustainable construction material.
- The integration of association analysis in the spreadsheet application offers a practical tool for engineers.
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