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Concrete negative retarding paint and preparation method thereof

A concrete and retarding technology, applied in the direction of rosin coatings, coatings, etc., can solve the problem of inapplicable negative retardation, and achieve the effect of good environmental protection and low solvent toxicity

Active Publication Date: 2019-09-20
南通达海澄筑建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the materials used to achieve the effect of exposed aggregate in concrete are mainly sprayed on the surface of the initial setting concrete to achieve the retarding effect on the front of the concrete. It is not suitable for brushing on the formwork to achieve the effect of negative retarding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Negative retarding coating

[0019] The raw materials (parts by weight) of negative retarding coating 1 are as follows: 100 parts of 120# solvent naphtha, 40 parts of rosin, 20 parts of rosin glycerides, 2.4 parts of humic acid, 1.2 parts of sodium acetate, 80 parts of wollastonite powder, talcum powder 20 parts, calcined kaolin 50 parts, iron oxide pigment 0.8 parts, EFKA 4010 1.5 parts, white carbon black 5 parts, organic bentonite 10 parts.

[0020] The preparation method of negative retarding coating 1 comprises the following steps: heating the solvent to 60-90°C, adding an adhesive to dissolve it under stirring; then adding a wetting and dispersing agent, a retarder, a pigment and a filler, and stirring evenly ; Finally, add a thickener and stir evenly to obtain the concrete negative retarding coating.

[0021] (2) Control paint

[0022] The raw materials (parts by weight) of the contrast paint 1 are as follows: 100 parts of 120# solvent oil, 40 parts of rosi...

Embodiment 2

[0032] The raw materials (parts by weight) of concrete negative retarding coating 2 are as follows: 60 parts of 200# solvent naphtha, 60 parts of rosin, 4.5 parts of humic acid, 1.5 parts of sodium acetate, 150 parts of wollastonite powder, 50 parts of calcined kaolin, oxidized 1.2 parts of iron pigment, 2.2 parts of EFKA 4010, 8 parts of white carbon black. Preparation method is with embodiment 1.

Embodiment 3

[0034] The raw materials (parts by weight) of concrete negative retarding coating 3 are as follows: 100 parts of 120# solvent naphtha, 50 parts of naphthenic oils, 50 parts of rosin glycerides, 4 parts of humic acids, 2 parts of sodium acetate, 100 parts of calcined kaolin, 50 parts of wollastonite powder, 1.2 parts of iron oxide pigment, 1.2 parts of SN5040, 20 parts of organic bentonite. Preparation method is with embodiment 1.

[0035] Spray the negative retarding coatings 2 and 3 evenly on the surfaces of different molds by spraying. After the coating is dry, pour C30 self-compacting decorative concrete on the surface. After 24 hours, the concrete is demoulded and rinsed with a high-pressure water gun. surface to investigate the negative retarding effect of each coating. C30 self-compacting decorative concrete formula (parts by weight): 264 parts of PW42.5 cement, 87 parts of S95 slag powder, 902 parts of sand, 956 parts of gravel, 152 parts of water, and 6.6 parts of sup...

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PUM

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Abstract

The invention provides concrete negative retarding paint and a preparation method thereof, and relates to the field of functional paint. The concrete negative retarding paint comprises, by weight, 50-160 parts of solvents, 45-65 parts of adhesives, 3-6 parts of retarders, 140-210 parts of fillers, 1-2.5 parts of wetting dispersants and 8-20 parts of thickeners. The concrete negative retarding paint is applicable to formworks, delayed coagulation of concrete is realized at positions where the paint is adhered to the formworks, and an aggregate exposure effect is achieved.

Description

technical field [0001] The invention relates to the field of functional coatings, in particular to a concrete negative retarding coating and a preparation method thereof. Background technique [0002] Concrete negative retarding coating is a special functional coating that can prolong the setting and hardening time of cement in the contact part, and wash the concrete surface with water to achieve the effect of exposed aggregate. At present, the materials used to achieve the effect of concrete exposed aggregate are mainly sprayed on the surface of the initial setting concrete to achieve the retarding effect on the front of the concrete, which is not suitable for brushing on the formwork to achieve the effect of negative retarding. Contents of the invention [0003] The purpose of the present invention is to provide a concrete negative retarding paint, which is suitable for painting on the formwork, so as to realize the retardation of the concrete at the joint with the formw...

Claims

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Application Information

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IPC IPC(8): C09D193/04C09D7/61C09D7/63C09D7/62C09D7/65C09D7/20
CPCC08K2003/2272C08K2201/014C08L2205/025C08L2205/03C09D193/04C09D7/20C09D7/61C09D7/62C09D7/63C09D7/65C08L93/04C08L99/00C08K13/06C08K5/098C08K3/34C08K3/346C08K3/22
Inventor 张克曹亢王磊徐志刚
Owner 南通达海澄筑建筑科技有限公司
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