Soil stabilizer, and preparation and application method thereof

A technology of soil curing agent and early-strength agent, which is applied in the field of building materials, can solve the problems of low initial strength of solidified soil and insufficient strength of solidified soil, and achieve good effect, shortened curing period, and easy-to-obtain raw materials

Active Publication Date: 2014-01-01
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main component of the existing soil curing agent is Portland cement clinker, plus some industrial alkali slag and alkaline activator to make a soil curing agent. This type of soil curing agent is mostly used in road construction, roads, railways and building subgrades etc., and the curing period of these Portland cement clinker curing agents is nearly 3 times longer than that of aluminate cement clinker, which makes it have obvious disadvantages in the field of emergency relief, and the use of existing soil curing agents The strength of the solidified soil is not high enough (the compressive strength is generally less than 3MPa), and the initial strength of the solidified soil is very low, which is still a problem that needs to be faced

Method used

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  • Soil stabilizer, and preparation and application method thereof
  • Soil stabilizer, and preparation and application method thereof
  • Soil stabilizer, and preparation and application method thereof

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preparation example Construction

[0053] The preparation method of the soil solidifying agent of the present invention: take salt cement clinker, early strength agent, water reducer, expansion agent and waterproofing agent, and mix to prepare the soil solidifying agent.

[0054] Further, in order to make the solid soil solidification material have a small and uniform particle size, this can ensure that the solidification agent has good contact with the clay, so that it can respond quickly. Preferably, each raw material is ground separately first, and the surface area of ​​each raw material after grinding is 200-800m 2 / kg.

[0055] The using method of soil solidifying agent of the present invention, it comprises the steps:

[0056] a. Take 25-40 parts of soil curing agent, 100 parts of clay and 35-45 parts of water in parts by weight, and mix to prepare mixed soil mud;

[0057] b. Spray, joint or grout the mixed soil slurry to treat the slope.

[0058] Furthermore, in order to make the sprayed mud reach a s...

Embodiment 1

[0064] The preparation and use of embodiment 1 soil solidifying agent

[0065] Weigh 56kg of aluminate cement clinker (purchased from Guizhou Yufeng Melting Materials Co., Ltd.), 3.60kg of triisopropanolamine, 2.96kg of calcium chloride, 9.28kg of gypsum, 2.00kg of polycarboxylate superplasticizer (the It is sodium polystyrene sulfonate, which is purchased by Hangzhou Tuomu Technology Co., Ltd.), 5.20kg calcium sulfoaluminate expansion agent and 0.96kg sodium methyl siliconate (which is purchased by Jiangxi Lianda Chemical Co., Ltd.), respectively Grind it to a surface area of ​​200m 2 / kg, and then mix it evenly to make a soil stabilizer.

[0066] Select a slope, measure and stake out, clean up the sundries on the slope, sprinkle water to moisten it, and pre-embed a mark to control the thickness of the sprayed mixed soil slurry; weigh the clay on the spot, and dry the clay taken on the spot. Pulverize, be 25:100 by soil solidifying agent and clay mass ratio, clay and soil s...

Embodiment 2

[0068] Embodiment 2 Preparation and use of soil stabilizer

[0069] Weigh 60kg of aluminate cement clinker (purchased from Guizhou Yufeng Melting Material Co., Ltd.), 3.20kg of triisopropanolamine, 2.80kg of calcium chloride, 6.80kg of gypsum, and 1.20kg of polycarboxylic acid superplasticizer (the It is sodium polystyrene sulfonate, which is purchased by Hangzhou Tuomu Technology Co., Ltd.), 4.80kg calcium sulfoaluminate expansion agent and 1.20kg sodium methyl siliconate (which is purchased by Jiangxi Lianda Chemical Co., Ltd.), respectively Grind it to a surface area of ​​250m 2 / kg, and then mix it evenly to make a soil stabilizer material.

[0070] Select a slope, measure and stake out, clean up the sundries on the slope, sprinkle water to moisten it, and pre-embed a mark to control the thickness of the sprayed mixed soil slurry; weigh the clay on the spot, and dry the clay taken on the spot. Pulverize, mix the clay with the solidifying agent as 30:100 according to the ...

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Abstract

The invention relates to a soil stabilizer, and a preparation and application method thereof, belonging to the field of building materials. The invention aims to provide a soil stabilizer, and a preparation and application method thereof. The soil stabilizer is composed of the following substances in parts by weight: 70-90 parts of aluminate cement clinker, 3.5-20 parts of early-strength admixture, 0.4-3 parts of water reducing agent, 4-6.8 parts of expanding agent and 1.2-2.1 parts of waterproofing agent. The soil stabilizer has favorable stabilization effect; the strength of the soil body treated by the soil stabilizer is up to 3.728 MPa; and the curing period of the soil body treated by the soil stabilizer is shorter than the curing time of the soil stabilizer mainly comprising Portland cement clinker. The soil stabilizer is convenient to use and simple to operate.

Description

technical field [0001] The invention relates to a soil curing agent and its preparation and use methods, belonging to the field of building materials. Background technique [0002] Soil stabilizer is a solid material or liquid material that can improve and enhance the technical performance of soil engineering. It has the advantages of fast curing speed, high early strength, less dosage, local materials, saving construction time and reducing engineering cost. , railways, building foundations, water conservancy, airports and slopes (landslides) and other fields have been widely used. [0003] The existing soil curing agents are divided into two types: solid curing agents and liquid curing agents. Liquid curing agents are mostly used for soil foundation treatment with low water content. In comparison, the application of solid curing agents does not require water content. Its development and The application is also more than liquid curing agent. Its curing mechanism is as foll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
Inventor 龙剑平曾英黄春杨梅张文涛
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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