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

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 and waterproofing agent and a preparation method thereof, belonging to the technical field of cement products. Background technique

[0002] In various building constructions, a large amount of concrete is used. Cracking in the process of pouring concrete is a problem that has always been difficult to solve in the construction quality. It has long troubled all construction and users, and affected the normal use of the building, and it will be cracked. The service life of concrete is reduced, especially to reduce urban pollution. Since commercial concrete (ready-mixed concrete) has been used in large quantities to reduce urban pollution, the cracks in concrete after long-distance transportation have become more serious. In order to solve this long-term troubled technical problem, after long-term practice and exploration, people in the industry have found o...

Examples

Embodiment 1

[0023] Example 1: Weigh the following raw materials according to the formula: 180kg of high-concentration naphthalene 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 the water to a liquid mixer, start the mixer, slowly add hydroxypropyl methylcellulose, stirring time 30min, leave it for 2 hours;

[0026] b. Add three-sixths of water to another mixer to start the mixer, and slowly add sodium lauryl sulfate, sodium gluconate, high-concentration naphthalene series superplasticizer, and stir for 30 minutes. Standby;

[0027] c. To dilute the vinyl acetate-ethylene copolymer emulsion, divide it evenly into 4 equal parts and put them into 4 containers respectively, and put 4 parts of the remaining water into the above-mentioned container, and dilute it with stirring for use;

[0028] d. Start the mixer of ste...

Embodiment 2

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

[0031] Preparation:

[0032] a. Add two-sixths of the water to a liquid mixer, start the mixer, slowly add hydroxypropyl methylcellulose, stirring time 35min, stand for 110 minutes;

[0033] b. Add three-sixths of the water in another mixer to start the mixer, and slowly add sodium lauryl sulfate, sodium gluconate, and high-concentration naphthalene series superplasticizer and stir for 29 minutes for use;

[0034] c. To dilute the vinyl acetate-ethylene copolymer emulsion, divide it evenly into 4 equal parts and put them into 4 containers respectively, and put 4 parts of the remaining water into the above-mentioned container, stir and dilute for later use;

[0035] d. Start the mixer of step a a...

Embodiment 3

[0037] Example 3: Weigh the following raw materials according to the formula: 210kg of high-concentration naphthalene-based superplasticizer, 2.6kg of sodium lauryl sulfate, 6.5kg of sodium gluconate, 1.2kg of hydroxypropyl methylcellulose, and vinyl acetate- 220kg of ethylene copolymer emulsion and 570kg of water.

Technical field

[0001] The invention relates to a building material, in particular to a multifunctional concrete anti-cracking and waterproofing agent and a preparation method thereof, belonging to the technical field of cement products. Background technique

[0002] In various building constructions, a large amount of concrete is used. Cracking in the process of pouring concrete is a problem that has always been difficult to solve in the construction quality. It has long troubled all construction and users, and affected the normal use of the building, and it will be cracked. The service life of concrete is reduced, especially to reduce urban pollution. Since commercial concrete (ready-mixed concrete) has been used in large quantities to reduce urban pollution, the cracks in concrete after long-distance transportation have become more serious. In order to solve this long-term troubled technical problem, after long-term practice and exploration, people in the industry have found o...

Examples

Embodiment 1

[0023] Example 1: Weigh the following raw materials according to the formula: 180kg of high-concentration naphthalene 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 the water to a liquid mixer, start the mixer, slowly add hydroxypropyl methylcellulose, stirring time 30min, leave it for 2 hours;

[0026] b. Add three-sixths of water to another mixer to start the mixer, and slowly add sodium lauryl sulfate, sodium gluconate, high-concentration naphthalene series superplasticizer, and stir for 30 minutes. Standby;

[0027] c. To dilute the vinyl acetate-ethylene copolymer emulsion, divide it evenly into 4 equal parts and put them into 4 containers respectively, and put 4 parts of the remaining water into the above-mentioned container, and dilute it with stirring for use;

[0028] d. Start the mixer of ste...

Embodiment 2

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

[0031] Preparation:

[0032] a. Add two-sixths of the water to a liquid mixer, start the mixer, slowly add hydroxypropyl methylcellulose, stirring time 35min, stand for 110 minutes;

[0033] b. Add three-sixths of the water in another mixer to start the mixer, and slowly add sodium lauryl sulfate, sodium gluconate, and high-concentration naphthalene series superplasticizer and stir for 29 minutes for use;

[0034] c. To dilute the vinyl acetate-ethylene copolymer emulsion, divide it evenly into 4 equal parts and put them into 4 containers respectively, and put 4 parts of the remaining water into the above-mentioned container, stir and dilute for later use;

[0035] d. Start the mixer of step a a...

Embodiment 3

[0037] Example 3: Weigh the following raw materials according to the formula: 210kg of high-concentration naphthalene-based superplasticizer, 2.6kg of sodium lauryl sulfate, 6.5kg of sodium gluconate, 1.2kg of hydroxypropyl methylcellulose, and vinyl acetate- 220kg of ethylene copolymer emulsion and 570kg of water.