Scanning Electron Microscope Analysis of Methyl Sodium Silicate on the Improvement of Hydraulic Properties of Earthen Sites
[Purposes]Under the influence of long-term rain erosion and capillary water,soil sites are highly susceptible to cracks caused by dry-wet cycling.In order to increase the hydrophobicity of soil sites and improve their hydro-physical properties,the waterproof agent is used.[Methods]The soil sites were sprayed with methyl sodium silicate solution,which entered the soil samples through capillary ac-tion and then produced hydrophobicity by carbonization reaction and the hydrophobic principle was ana-lyzed by SEM electron microscope.[Findings]It was found that the carbonization of methyl sodium sili-cate made silicone oxygen film on the surface of soil particles.With the increase of spraying times,the in-ternal independent suspended soil particles decreased,the connection force between particles increased,and the internal pores of the soil samples reduced greatly,which blocked the intrusion channel of exter-nal water and reduce the water absorption rate of the soil.[Conclusions]The hydrological properties of earthen sites were improved by methyl sodium silicate treatment,which provided a new idea for the pro-tection of earthen sites.
earthen ruinshydrophobicitySEM electron microscopecapillary action
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