Effect on Silt Capillary Water Absorption upon Addition of Sodium Methyl Silicate (SMS) and Microscopic Mechanism Analysis
Source abstract
Abstract
Silt has the characteristics of developed capillary pores and strong water sensitivity, and capillary water is an important factor inducing the erosion and slumping of silt sites. Therefore, in order to suppress the effect of capillary water, this article discusses the improvement effect of sodium methyl silicate (SMS) on silt. The effect was investigated by capillary water rise testing and contact angle measurement, and the inhibition mechanism is discussed from the microscopic view by X-ray diffraction (XRD) testing, X-ray fluorescence (XRF) testing, scanning electron microscope (SEM) testing and mercury intrusion porosimetry (MIP) testing. The results show that SMS can effectively inhibit the rise of capillary water in silt, the maximum height of capillary rise can be reduced to 0 cm when the ratio of SMS (g) to silt (g) increases to 0.5%, and its contact angle is 120.2°. In addition, considering also the XRD, XRF, SEM and MIP test results, it is considered that SMS forms a water-repellent membrane by reacting with water and carbon dioxide, which evenly distribute on the surface of silt particles. The membrane reduces the surface energy and enhances the water repellence of silt, and combines with small particles in the soil, reduces the number of 2.5 μm pores and inhibits the rise of capillary water.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Geotechnical Engineering and Soil Stabilization · Aeolian processes and effects · Soil and Unsaturated Flow
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Water Conservancy Engineering, Zhengzhou University, Zhengzhou 450001, China
Funding
Science and Technology Department, Henan Province
References (35)
Show source-provided references
1. Liu, C.H. (2019). Study on the Water Movement of Silt and the Seepage Characteristics of the City Wall Considering Clay content. [Master’s Thesis, Zhongyuan Institute of Technology].
2. Li, L. (2019). Study on the Freeze-Thaw Cycle Effect and Micromechanism of the Strength and Disintegration of the Silt at the Site. [Master’s Thesis, Zhongyuan Institute of Technology].
3. Experimental study of barrier effect on moisture movement and mechanical behaviors of loess soil10.1016/j.enggeo.2018.04.007 ↗
4. Study of the water transportation characteristics of marsh saline soil in the Yellow River Delta10.1016/j.scitotenv.2016.09.111 ↗
5. Zhang, Y.C., Zhang, X.F., and Leng, Y.F. (2011, January 16). The research on stable rising height and harmful rising height of capillary water. Proceedings of the 2011 International Conference on Transportation and Mechanical & Electrical Engineering (TMEE), Changchun, China.10.1109/TMEE.2011.6199654 ↗
6. Comprehensive test research of capillary water rising height
7. The creeping disaster: Dryland and urban salinity and its impact on heritage
8. Strength characteristics and pore distribution characteristics of soil ruins under the action of capillary water dry-wet cycle
9. The effect of capillary water on the stability of silt subgrade
10. Walker, P. (2003, January 29). Terra 2003. Proceedings of the 9th International Conference on the Study and Conservation of Earthen Architecture, Terra, Iran.
11. Rainer, L.H. (2003). Water, wind, salt, biological, environmental, dete rioration/pathology. Terra Literature Review, GCI.
12. Cui, C. (2019). Disease Analysis of a City Wall Soil Site and the Stability of Modified Loess after Restoration. [Master’s Thesis, Xi’an University of Technology].
13. Water repellency of monument soil treated by tung oil10.1007/s10706-015-9939-8 ↗
14. Research on silty soil capillary water rising in yellow river flooded area of eastern henan
15. Recycled bassanite for enhancing the stability of poor subgrades clay soil in road construction projects10.1016/j.conbuildmat.2013.05.089 ↗
16. Investigation of recycled gypsum in conjunction with waste plastic trays for ground improvement10.1016/j.conbuildmat.2010.06.036 ↗
17. Effects of surfactants originating from reuse of greywater on capillary rise in the soil10.2166/wst.2005.0690 ↗
18. Experimental study on polymer-modified silt under different water environments
19. Effects of four soil surfactants on four soil-water properties in sand and silt loam10.2489/jswc.67.4.275 ↗
20. Effect of application of surfactants on hydraulic properties of soils10.1016/S1537-5110(02)00244-1 ↗
21. The study on engineering characteristics and compression mechanisms of typical historical earthen site soil10.1016/j.conbuildmat.2019.04.028 ↗
22. Methyl silicate inhibits clay hydration and its mechanism
23. Performance evaluation and action mechanism of potassium methyl silicate shale inhibitor
24. Research on the influence of active components on the properties of concrete
25. Preparation of Ca-Al-Fe deicing salt and modified with sodium methyl silicate for reducing the influence of concrete structure10.1016/j.conbuildmat.2018.03.247 ↗
26. Liu, G. (2017). Experimental Study on Adding Chloride Ion Transmission Blocking Materials to Cement Concrete. [Master’s Thesis, Chang’an University].
27. Li, X.J. (2013). Microwave Hardened Water Glass Sand Composite Hardening Process and Anti-Hygroscopicity. [Master’s Thesis, Huazhong University of Science and Technology].
28. Wang, H.F. (2012). Key Technical Foundations of Microwave Hardened Water Glass Sand Application. [Ph.D. Thesis, Huazhong University of Science and Technology].
29. Experimental study of yellow silty soil stabilized by sodium methyl silicate
30. JTGE40-2007 (2007). Highway Geotechnical Test Regulations [S], People’s Communications Press.
31. An analytical method for studying the distribution characteristics of soil particles and pores based on sem images
32. Experimental study on microstructure characteristics of soft soil based on NMR and SEM
33. Investigation of microscopic air void structure of anti-freezing asphalt pavement with X-ray CT and MIP10.1016/j.conbuildmat.2018.05.185 ↗
34. Application research of sodium methyl silicate (organic silicone water repellent)
35. Shear, D.L., Olsen, H.W., and Nelson, K.R. (1993). Effects of desiccation on the hydraulic conductivity versus void ratio relationship for a natural clay. Transportation Research Record, National Academy Press.