Side slope grouting slurry for silty-fine sand embankment widening and method for preparing same
A technology for silty sand and slope, which is applied in the field of slope grouting slurry and its preparation, can solve the problems of adverse environmental impact and high cost of raw materials, and achieves the effects of low price, long gelling time and wide sources.
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Embodiment 1
[0028] The side slope grouting slurry used for widening powder fine sand embankment according to the present invention is made of the following raw materials in proportions by mass: 3 parts of water glass, 2 parts of acetic acid, 1 part of calcium chloride, hydrogen phosphate 0.2 part of disodium, 0.1 part of ferric chloride and 0.1 part of aluminum chloride, 0.1 part of phosphoric acid or sulfuric acid.
[0029] The preparation method of the above-mentioned side slope grouting slurry for widening of fine sand embankment, the specific steps are as follows:
[0030] (1) Prepare acetic acid into an acetic acid solution with a mass percentage of 5-25%;
[0031] (2) Prepare the water glass solution with a modulus of 2.3-3.0 into a water glass solution with a mass percentage of 5-25%, and then add hydrogen phosphate with a mass percentage of 1-10% in the above-mentioned prepared water glass solution according to the proportion Disodium solution, fully stirred for subsequent use; ...
Embodiment 2
[0039] The side slope grouting slurry used for widening powder fine sand embankment according to the present invention is made of the following raw materials in proportions by mass: 9 parts of water glass, 6 parts of acetic acid, 3 parts of calcium chloride, hydrogen phosphate 1.6 parts of disodium, 2.5 parts of ferric chloride and 2.5 parts of aluminum chloride, 1.5 parts of phosphoric acid or sulfuric acid.
[0040] The preparation method is the same as in Example 1.
Embodiment 3
[0042] The side slope grouting slurry used for widening powder fine sand embankment according to the present invention is made of the following raw materials in proportions by mass: 15 parts of water glass, 10 parts of acetic acid, 5 parts of calcium chloride, hydrogen phosphate 3 parts of disodium, 5 parts of ferric chloride and 5 parts of aluminum chloride, 3 parts of phosphoric acid or sulfuric acid.
[0043] The preparation method is the same as in Example 1.
[0044] The slurry in the invention is in the state of solution and colloidal solution, has low viscosity, good diffusivity, and a diffusion radius of 0.8-2.5m, enabling the slurry to spread evenly under low pressure. Calcium chloride and sodium silicate in the slurry, under the action of inorganic salt additives, undergo a chemical reaction to produce calcium silicate with high bonding capacity, and after forming calcium silicate cementitious material, the strength of silt and fine sand can be as high as 0.5~ 3.5MP...
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