Study on the Modification of Silty Soil Sites Using Nanosilica and Methylsilicate
Abstract
:1. Introduction
2. Experiment Scheme
2.1. Experimental Materials
2.2. Experimental Method
3. Results and Discussion
3.1. Modification Experiment of Single Doping by Nanosilica
3.1.1. Direct Shear Testing
3.1.2. Capillary Water Rise Testing
3.2. Experimental Study on Combined Modification with Nanosilica and Potassium Methylsilicate
3.2.1. Direct Shear Testing
3.2.2. Capillary Water Rise Testing
3.3. Micro-Mechanism of the Composite Modified Soil
3.3.1. SEM Testing Results and Analysis
3.3.2. XRD Testing Results and Analysis
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Property | Value |
---|---|
Sand (0.074~2 mm) | 17.78% |
Silt (0.002~0.074 mm) | 82.11% |
Clay (<0.002 mm) | 0.11% |
Liquid limit | 25.1% |
Plastic limit | 16.3% |
Plasticity index | 8.7% |
Maximum dry density | 1.711 g·cm−3 |
Optimum moisture content | 12.41% |
Test Method | Particle Size Interval Group/mm | Less than a Particle Size Mass Fraction/% |
---|---|---|
Sieving method | >99.8 | 100 |
2.0–1.0 | 99.15 | |
1.0–0.5 | 98.75 | |
0.5–0.25 | 98.55 | |
0.25–0.15 | 97.25 | |
0.15–0.075 | 90.30 | |
Densimeter method | 0.075–0.005 | 82.88 |
0.005–0.002 | 5.05 | |
<0.002 | 0.13 |
Average Grain Diameter/nm | Pureness/% | Proportion/(m2/g) | Bulk Density/(g/cm3) | Colour | Form |
---|---|---|---|---|---|
20 | ≥99.8 | 200 | 0.05 | White | Spherical granular powder |
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Cao, P.; Ma, Q.; Zha, M.; Zhang, J.; Huo, Z. Study on the Modification of Silty Soil Sites Using Nanosilica and Methylsilicate. Materials 2023, 16, 5646. https://doi.org/10.3390/ma16165646
Cao P, Ma Q, Zha M, Zhang J, Huo Z. Study on the Modification of Silty Soil Sites Using Nanosilica and Methylsilicate. Materials. 2023; 16(16):5646. https://doi.org/10.3390/ma16165646
Chicago/Turabian StyleCao, Pengke, Qingwen Ma, Mingming Zha, Jian Zhang, and Zijian Huo. 2023. "Study on the Modification of Silty Soil Sites Using Nanosilica and Methylsilicate" Materials 16, no. 16: 5646. https://doi.org/10.3390/ma16165646
APA StyleCao, P., Ma, Q., Zha, M., Zhang, J., & Huo, Z. (2023). Study on the Modification of Silty Soil Sites Using Nanosilica and Methylsilicate. Materials, 16(16), 5646. https://doi.org/10.3390/ma16165646