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A kind of early-strength soil stabilizer and its preparation method and application

A soil curing agent and soil technology, applied in the direction of chemical instruments and methods, applications, soil conditioning materials, etc., can solve the problems of complex steps in the construction process, long construction period, low early strength, etc., to improve the bonding strength and water resistance Sexuality, low cost, high early strength effect

Active Publication Date: 2022-04-29
杭州圣立新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the existing soil stabilizers on the market generally have the problems of low early strength, long construction period, complicated construction steps or potential environmental hazards.

Method used

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  • A kind of early-strength soil stabilizer and its preparation method and application
  • A kind of early-strength soil stabilizer and its preparation method and application
  • A kind of early-strength soil stabilizer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The present embodiment provides a kind of early-strength soil curing agent, and its specific preparation method is:

[0061] 1), the preparation of toluene diisocyanate modified polyvinyl alcohol emulsion:

[0062] In a 500ml three-necked flask, add 250ml of water, heat to 100°C, accurately weigh 30g of polyvinyl alcohol particles, pour it into the three-necked flask, continue stirring at 150rpm until completely dissolved; continue to add emulsifier Tween-80, 0.5g, Stir and lower the temperature to 40°C; continue to drop 2.5 g of toluene diisocyanate in the emulsion, increase the rotation speed to 500 rpm, and continue the reaction for 2 hours, which is the desired isocyanate-modified polyvinyl alcohol emulsion.

[0063] 2), the preparation of early-strength soil curing agent (the following parts are parts by weight):

[0064] In a 250ml beaker, add 10 parts of water, heat to 40°C, add 3 parts of sodium sulfate, 1 part of sodium chloride, and 6 parts of water glass at ...

Embodiment 2

[0066] The present embodiment provides a kind of early-strength soil curing agent, and its specific preparation method is:

[0067] 1), the preparation of toluene diisocyanate modified polyvinyl alcohol emulsion:

[0068] In a 500ml three-necked flask, add 250ml of water, heat to 100°C, accurately weigh 30g of polyvinyl alcohol particles, pour it into the three-necked flask, continue stirring at 150rpm until completely dissolved; continue to add emulsifier Tween-80, 0.5g, Stir and lower the temperature to 40°C; continue to drop 1 g of toluene diisocyanate in the emulsion, increase the rotation speed to 500 rpm, and continue to react for 2 hours, which is the desired isocyanate-modified polyvinyl alcohol emulsion.

[0069] 2), the preparation of early-strength soil curing agent (the following parts are parts by weight):

[0070] In a 250ml beaker, add 10 parts of water, heat to 40°C, add 3 parts of sodium sulfate, 1 part of sodium chloride, and 6 parts of water glass at a spee...

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Abstract

The invention discloses an early-strength soil curing agent and its preparation method and application. Based on 100 parts by weight of raw materials, the early-strength soil curing agent comprises: 40-80 parts of isocyanate modified polyvinyl alcohol emulsion; anionic surfactant 10‑40 parts; 3‑10 parts of water glass; 3‑10 parts of salt compounds; 1‑5 parts of phenol butanol; 0.5‑2 parts of pore sealing agent; 10‑30 parts of water. The early-strength soil curing agent of the present invention can endow the soil with the advantages of early-strength. The early-strength soil curing agent also has the advantages of simple processing technology, convenient application, fast setting time, good water resistance, high bonding strength, and universal applicability to different soils Excellent features.

Description

technical field [0001] The invention relates to the technical field of soil stabilizers, in particular to an early-strength soil stabilizer and a preparation method and application thereof. Background technique [0002] In the context of the green development concept, the reuse of construction earthwork has attracted more and more attention from various industries, among which soil stabilizers have emerged as the times require. Soil stabilizer, as the name suggests, is an auxiliary agent that stabilizes the soil to make it have the strength to use. Soil stabilizers are mainly composed of the following: 1), traditional inorganic soil stabilizers represented by cement and lime; 2), ionic soil stabilizers represented by sulfonated oil; 3), polymer compound reaction as The main composite soil stabilizer. Different soil stabilizers have different effects in improving soil curing strength, water stability, crack resistance, frost resistance and durability. [0003] With the dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C04B28/26
CPCC04B28/26C04B2111/00732C04B2201/50C04B24/2623C04B24/02C04B2103/0068C04B22/124C04B24/08C04B22/147C04B24/18
Inventor 江永波张帅韦晓东
Owner 杭州圣立新材料有限公司
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