The Effects of Lime and Cement Addition on the Compaction and Shear Strength Parameters of Silty Soils
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View abstract on PubMed
Summary
This summary is machine-generated.Adding lime and cement to silty soils significantly improves compaction and shear strength. This soil stabilization method is environmentally friendly, reducing CO2 emissions and avoiding soil replacement.
Area Of Science
- Geotechnical Engineering
- Soil Science
- Materials Science
Background
- Silty soils often require stabilization for construction applications.
- Hydraulic binders like lime and cement are potential soil improvement agents.
Purpose Of The Study
- To evaluate the impact of lime and cement on compaction and shear strength of silty soils.
- To assess the effectiveness of hydraulic binders for surface stabilization.
Main Methods
- Laboratory tests on silty soil samples with varying percentages (0-8%) of lime and/or cement.
- Samples subjected to air-water treatment and freeze-thaw cycles over 7 and 14 days.
- Analysis of compaction parameters, shear strength, internal friction angle, and cohesion.
Main Results
- Hydraulic binders altered compaction parameters, with effects varying by binder type and soil composition.
- High shear strength, internal friction angle, and cohesion were observed, dependent on binder type and treatment.
- The SHAP algorithm identified normal stress, initial moisture content, and curing time as key factors influencing shear strength.
Conclusions
- Hydraulic binders are effective for silty soil stabilization, enhancing mechanical properties.
- This stabilization approach supports sustainable development by reducing CO2 emissions and avoiding soil replacement.
- Binder type, soil characteristics, and treatment conditions are critical for optimizing soil stabilization outcomes.
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