Paste injecting material of expansive soil cement paste
A technology of grouting material and expansive soil, which is applied in the field of grouting materials for expansive soil cement slurry, can solve the problems of different grouting effects, and achieve good water blocking effect, high calculus rate, and good grouting effect
Inactive Publication Date: 2015-06-03
安徽恒源煤电股份有限公司
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However, due to the different ratio of clay-cement slurry, the effect of grouting is also different
Method used
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Embodiment 1
[0019] This embodiment includes expansive soil, cement and water, the weight ratio of expansive soil and cement is 3:7, the selected solid material is 120g, and the slurry ratio is 1.24. When the expansive soil passes through a 200-mesh sieve, the liquid limit of the expansive soil is 36.7%, the plastic limit is 19.7%, and the plasticity index is 17.0. The pH value of the water is 7.81, and the salinity is 665.30mg / L. The cement is PO42.5 ordinary Portland cement.
Embodiment 2
[0021] The slurry ratio of the present embodiment is 1.26, and other embodiments are the same as in Example 1.
Embodiment 3
[0023] The slurry ratio of this embodiment is 1.28, and other embodiments are the same as embodiment 1.
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The invention discloses a paste injecting material of expansive soil cement paste. The expansive soil cement paste comprises expansive soil, cement and water, wherein the weight ratio of the expansive soil and the cement is 3:7, the pastes ratio is 1.24-1.36. Through replacing common clay by expansive soil, the expansive soil-cement paste is better than clay-cement paste in every respect, in two pastes with the same ratio, the expansive soil-cement paste can achieve a better paste injecting effect. During the paste injecting under the same base plate condition, with the pastes having the same proportion, the stone forming ratio of the expansive soil-cement paste is higher, and a better water plugging effect is achieved.
Description
technical field [0001] The invention relates to a grouting material for mines, in particular to a grouting material for expansive soil cement slurry. Background technique [0002] The performance of grout is very important to grouting engineering, so research and development of grout with low price and good performance has good economic benefits. Cement-clay slurry has been widely used in water blocking reinforcement and anti-seepage projects under various hydrogeological conditions due to its advantages of low cost, strong impermeability, and high stone formation rate. Cement-clay slurries or cement slurries are used in floor aquifer modification. However, due to the different ratio of clay-cement slurry, the effect of grouting is also different. Practice has proved that in the design of grouting engineering, the selection of grout is an important part, which directly affects the quality of grouting and the cost of the project. Due to the different purposes and requireme...
Claims
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IPC IPC(8): C04B28/04
Inventor 解波张宏忠
Owner 安徽恒源煤电股份有限公司
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