Liquid composition used for reinforcing concrete, preparation method thereof and application thereof

A liquid composition and a technology for the composition are applied in the field of liquid compositions for enhancing the surface structure of hardened concrete and the field of preparation thereof, which can solve the problems of inability to maintain for a long time and pan-alkali, cumbersome concrete weathering protection treatment process and limited enhancement effect. and other problems, to achieve the effect of improving dust and sand generation, effective environmental protection, and protection of surface structure

Inactive Publication Date: 2010-05-19
SUZHOU NANODISPERSIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a concrete surface hardening composition, which solves the problem of severe concrete weathering in the prior art and the c

Method used

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  • Liquid composition used for reinforcing concrete, preparation method thereof and application thereof
  • Liquid composition used for reinforcing concrete, preparation method thereof and application thereof
  • Liquid composition used for reinforcing concrete, preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation of embodiment 1 silicone polymer liquid composition

[0037]

[0038] Preparation:

[0039] At a temperature of 5°C, add a mixture of 100 grams of silicon tetrachloride liquid, 500 grams of methanol and 10 grams of water into the anticorrosion reactor to carry out the alcoholysis and hydrolysis reaction while releasing the generated gas. Finally, the reactor is heated and evaporated at the same time. A mixture of by-products such as hydrogen chloride, methanol, and methyl chloride is produced to obtain a high-concentration siloxane polymer liquid containing a small amount of chlorine. After diluting and hydrolyzing with pure water at a ratio of 1:1, the pH of the liquid was tested to be 4.8, and the solid content of the completely hydrolyzed silicon dioxide was 48% by weight.

[0040] Abrasion test:

[0041] According to the national standard GB / T 17671-1999, the weight ratio of cement, sand and water is 1 to 3 to 0.5, and the cement with the label ...

Embodiment 2

[0051] The preparation of embodiment 2 silicone polymer liquid composition

[0052]

[0053] Preparation:

[0054] At room temperature, 100 grams of silicon tetrachloride and 10 grams of tetraethoxysilane are added into a glass reactor containing 500 grams of industrial alcohol containing 5% water to carry out alcoholysis reaction and hydrolysis reaction. After the reaction is completed, Raise the temperature of the reactor while decompressing to increase the mixture of hydrogen chloride and ethanol and other organic by-products containing chlorine, and finally obtain a high-concentration silicon oxide polymer liquid containing a small amount of chlorine. The silicon dioxide solid content of the liquid after complete hydrolysis is 41%. (weight), after diluting with pure water in a ratio of 1:1, the pH is 5.8.

[0055] Abrasion test:

[0056] According to the national standard GB / T 17671-1999, cement, sand and water are used in a weight ratio of 1 to 3 to 0.5, and two ceme...

Embodiment 3

[0057] The preparation of embodiment 3 silicone polymer liquid composition

[0058]

[0059] Preparation:

[0060]At room temperature, 1 gram of silicon tetrachloride, 100 grams of tetraethoxysilane, and 1 gram of hydrofluorosilicic acid are added into a glass reactor containing 500 grams of industrial ethanol containing 5% water to carry out alcoholysis reaction and Hydrolysis reaction, after the reaction is completed, the reactor is heated up and the mixture of hydrogen chloride and ethanol and other organic by-products containing chlorine are distilled out at the same time, and finally a high-concentration siloxane polymer liquid containing a small amount of chlorine and fluorine is obtained. The liquid after complete hydrolysis The silica solids content was 45% by weight and the pH was 5.8.

[0061] Abrasion test:

[0062] According to the national standard GB / T 17671-1999, the weight ratio of cement, sand and water is 1 to 3 to 0.5, and the cement, fine sand and wate...

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PUM

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Abstract

The invention discloses a liquid composition used for reinforcing concrete, a preparation method thereof and application thereof. The pH value of a mixture of the composition and water is more than 1 and less than or equal to 7. The liquid composition comprises siloxane polymer which is selected from compounds of which the structural general formula is [RnSiO (4-n)/2]m or a combination thereof, wherein R is selected from chlorine atoms, fluorine atoms, methoxyl, ethoxyl, propoxyl, butoxyl, methyl, ethyl, propyl and butyl; n is a natural number from 1 to 3, and m is an integer not less than 2; and the SiO2 solid accounts for 30 to 70 percent by weight when the polymer is fully hydrolyzed, and the rest is the mixture of organic alcohol solvent or halogen ions and free acid, wherein the halogen ions may be one or combination of chlorine ions and fluorine ions. The mixture can permeate into a concrete surface structure of the concrete to react with the components in the concrete, so the concrete surface structure is quickly reinforced and hardened, the concrete is prevented from dusting and sanding, meanwhile the acid resistance, oil resistance and water resistance of the concrete are improved, and the SiCl4 pollution of the polysilicon industry can be eliminated.

Description

technical field [0001] The invention belongs to the technical field of protective treatment of concrete materials, and in particular relates to a liquid composition for strengthening the surface structure of hardened concrete, a preparation method and application thereof. Background technique [0002] Concrete material is a kind of composite material, mainly composed of cement, sand, stone, etc. It is the most used building material, and it is widely used as industrial ground wall or commercial ground wall material for workshops, warehouses, parking lots, Airports, bridges, docks, highways, etc. The cured concrete generally has a porous structure, and the porosity is related to the composition, curing conditions, and admixtures. After curing, the concrete contains a large amount of calcium silicate, calcium hydrogen silicate, calcium hydroxide and other substances, combined with sand and gravel to form a composite material. The alkaline components in these concretes have b...

Claims

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Application Information

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IPC IPC(8): C04B24/40C04B41/48
CPCC04B41/4961C04B41/5016C04B40/0039C04B2111/27C04B2111/23C04B2111/00017C04B41/009C04B24/42C04B2103/14C04B2111/203C04B2103/0093
Inventor 王宇湖
Owner SUZHOU NANODISPERSIONS
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