Multifunction anti-crack water-proof agent for concrete and preparation method

An anti-cracking waterproofing agent and concrete technology, applied in the field of cement products, can solve problems affecting the normal use of buildings, reducing the service life of concrete, concrete cracks, etc.

Inactive Publication Date: 2008-12-24
李建红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In all kinds of building construction, a large amount of concrete is used. Cracking in the process of pouring concrete has always been a problem that has been difficult to solve in construction quality. It has long plagued various construction and user units and affected the normal use of buildings. The service life of concrete is reduced, especially since commercial concrete (ready-mixed concrete) is used in large quantities in order to reduce urban pollution, the phenomenon of concrete cracks after long-distance transportation is more serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1: Take the following raw materials according to the formula: 180kg of high-concentration naphthalene-based superplasticizer, 2.5kg of sodium lauryl sulfate, 7.5kg of sodium gluconate, 1kg of hydroxypropyl methylcellulose, vinyl acetate-ethylene Copolymer emulsion 200kg, water 580kg.

[0024] Preparation:

[0025] a. Add two-sixths of water to a liquid mixer, start the mixer, slowly add hydroxypropyl methylcellulose, stir for 30 minutes, and set aside for 2 hours;

[0026] b. Add three-sixths of water to another blender and start the blender, gradually add sodium lauryl sulfate, sodium gluconate, high-concentration naphthalene-based high-efficiency water reducer, and stir for 30 minutes. Set aside;

[0027] c. In order to dilute the vinyl acetate-ethylene copolymer emulsion, it is evenly divided into 4 equal parts, put into 4 containers respectively, and put 4 parts of the remaining moisture into the above-mentioned containers, and dilute with stirring for late...

Embodiment 2

[0030] Example 2: Take the following raw materials according to the formula: 190kg of high-concentration naphthalene-based superplasticizer, 2.7kg of sodium lauryl sulfate, 8kg of sodium gluconate, 1.1kg of hydroxypropyl methylcellulose, vinyl acetate-ethylene Copolymer emulsion 210kg, water 570kg.

[0031] Preparation:

[0032] a. Add two-sixths of water to a liquid mixer, start the mixer, add hydroxypropyl methylcellulose slowly, stir for 35 minutes, and place it for 110 minutes for later use;

[0033] b. Add three-sixths of water to another mixer and start the mixer, gradually add sodium lauryl sulfate, sodium gluconate, and high-concentration naphthalene-based high-efficiency water reducer and stir for 29 minutes, then set aside;

[0034] c. In order to dilute the vinyl acetate-ethylene copolymer emulsion, it is evenly divided into 4 equal parts, respectively packed into 4 containers, and 4 parts of the remaining moisture are put into the above-mentioned containers, stirr...

Embodiment 3

[0037] Embodiment 3: Take the following raw materials according to the formula: 210kg of high-concentration naphthalene-based high-efficiency water reducer, 2.6kg of sodium lauryl sulfate, 6.5kg of sodium gluconate, 1.2kg of hydroxypropyl methylcellulose, vinyl acetate- Ethylene copolymer emulsion 220kg, water 570kg.

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Abstract

A multifunctional anti-cracking water-proofing agent for improving the flowability and slump of concrete, increasing the strength, impervious performance and compactness of solidified concrete, and decreasing the consumption of water is prepared proportionally from high-concentration naphthelene-series efficient water reducing agent, sodium laurylsulfate, sodium gluconate, hydroxypropyl methylcellulose, vinyl acetate-ethene copolymer emulsion and water through sequential mixing and stirring.

Description

technical field [0001] The invention relates to a building material, in particular to a multifunctional concrete anti-cracking waterproofing agent and a preparation method thereof, belonging to the technical field of cement products. Background technique [0002] In all kinds of building construction, a large amount of concrete is used. Cracking in the process of pouring concrete has always been a problem that has been difficult to solve in construction quality. It has long plagued various construction and user units and affected the normal use of buildings. The service life of concrete has been reduced, especially since commercial concrete (ready-mixed concrete) has been used in large quantities in order to alleviate urban pollution, the concrete crack phenomenon through long-distance transportation is more serious. In order to solve this long-standing technical problem, after long-term practice and exploration, people in the industry have found out that the main factor of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/22C04B24/20C04B24/28C04B24/16C04B24/38C04B16/06C04B103/22C04B103/30C04B103/40C04B103/46
CPCC04B40/0046C04B24/10C04B24/16C04B24/2623C04B24/383C04B28/00C04B2103/302C04B24/226
Inventor 李建红
Owner 李建红
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