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A kind of organic-inorganic composite photoinitiated latent soil curing agent and preparation method thereof

A soil curing agent and inorganic composite technology, applied in the field of organic-inorganic composite light-induced latent soil curing agent and its preparation, can solve the problems of easy cracking, water stability, low impact strength, poor weather resistance, etc., and achieve strong cohesion. , low toxicity, good durability

Active Publication Date: 2022-02-15
BEIJING MUNICIPAL CONSTR +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared organic-inorganic light-initiated latent soil curing agent can solve the problems of poor weather resistance and low impact strength of a single organic epoxy resin soil curing agent and large drying shrinkage, easy cracking and poor water stability of a single inorganic soil curing agent

Method used

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  • A kind of organic-inorganic composite photoinitiated latent soil curing agent and preparation method thereof
  • A kind of organic-inorganic composite photoinitiated latent soil curing agent and preparation method thereof
  • A kind of organic-inorganic composite photoinitiated latent soil curing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step a. Weigh 20g of epoxy resin, 3g of photoinitiator, 10g of epoxy diluent 501 and 1g of silicon powder and mix evenly with 37g of distilled water, and stir at room temperature for 6 hours.

[0025] Step b. A certain amount of 25g of sodium silicate was mixed in 5g of distilled water, and stirred for 10min. Step c. Add the solution prepared in step b dropwise to the solution prepared in step a under stirring, and then stir the mixed solution at room temperature for 6 hours.

[0026] Step d. The prepared soil is solidified with a dosage of 0.02%, evenly sprayed with silty soil, then mixed with 4% cement and mixed evenly, through a series of physical and chemical reaction processes, so as to achieve stable and durable soil solidification Effect. According to the test method of JTGE51 (T0805), the unconfined compressive strength of the reinforced soil was tested for 7d, 28d and 90d. In order to reflect the reinforcement effect of organic and inorganic light-induced lat...

Embodiment 2

[0029] Step a. Weigh 20g of epoxy resin, 3g of photoinitiator, 10g of epoxy diluent 501 and 2g of silicon powder and mix them evenly with 25g of distilled water, and stir at room temperature for 6 hours.

[0030] Step b. A certain amount of 30 g of sodium silicate silicon precursor was mixed with 5 g of distilled water, and stirred for 10 min.

[0031] Step c. Add the solution prepared in step b to the solution prepared in step dropwise under stirring, then stir and react at room temperature for 6 hours.

[0032]Step d. The prepared soil is solidified with an amount of 0.02%, evenly sprayed into the clay soil, and then mixed with 6% cement and mixed evenly. After a series of physical and chemical reaction processes, the stable and long-lasting effect of soil solidification is achieved. . According to the test method of JTG E51 (T0805), the unconfined compressive strength of the reinforced soil was tested for 7d, 28d and 90d. In order to reflect the reinforcement effect of or...

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Abstract

An organic-inorganic composite light-initiated latent soil curing agent and a preparation method thereof belong to the category of new materials for municipal and construction projects. Its raw material composition includes: silicon precursor, silicon powder, epoxy resin, diluent, photoinitiator and solvent. The silicon precursor forms an inorganic silicon network through the sol-gel method. At the same time, under the light environment, the photoinitiator itself decomposes free radicals or cations, triggering the epoxy ring-opening polymerization reaction of the epoxy resin, and finally the inorganic silicon is combined with the epoxy at the nanometer level. Resin cross-linked composite. Thinners reduce the viscosity of the epoxy resin, which in turn speeds up the cure. The soil curing agent of the invention has the characteristics of good fluidity, less volatile matter, non-toxicity, good toughness, fast curing speed and the like.

Description

technical field [0001] The invention relates to an organic-inorganic composite light-initiated latent soil curing agent and a preparation method thereof. It belongs to the category of new materials for municipal and construction projects, and the field of fine chemical technology. Background technique [0002] Traditional soil reinforcement materials such as cement, lime, and fly ash generally have disadvantages such as large dosage, low early strength, high transportation cost, poor water resistance, easy cracking, narrow applicable soil range, etc., and emit a large amount of carbon dioxide, which violates the " Energy saving and emission reduction" macro national policy. The emergence of soil stabilizer effectively solves this problem. The soil stabilizer is an engineering material that can consolidate the soil into a strong bearing capacity, high density, small voids, high compaction, strong durability, and good stability at room temperature. It can be constructed with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26
CPCC04B28/26C04B2111/00732C04B2201/50C04B24/281C04B18/146C04B2103/0068
Inventor 郭飞姜瑜孔恒张丽丽白震王凯丽高胜雷田治州郝亮张志恩韩春梅王渭林雪冰张亚珍吴涛
Owner BEIJING MUNICIPAL CONSTR