Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Protective coating material for concrete bridge structure surface based on pure acrylic emulsion and preparation method thereof

A pure acrylic emulsion and bridge structure technology, applied in the coating and other directions, can solve the problems of poor anti-aging performance, loss of protective effect of the coating, and high coating dosage, etc., and achieve excellent anti-aging performance, excellent protective effect, and brushing process. simple effect

Active Publication Date: 2016-04-20
CCCC CIVIL ENG SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing concrete surface protective coatings mainly have the following disadvantages: First, the anti-carbonation performance is poor, and the carbonation depth is generally greater than the specification requirement (the specification requirement is ≤1mm). The second is the poor anti-aging performance. The same kind of protective coatings in China will appear wrinkling, yellowing, cracking, powdering and other aging damage in about 800 hours, resulting in the loss of protective effect of the coating; the third is the painting process. It is complicated and has a large amount of coating. Before painting similar domestic products, it is often necessary to apply a layer of primer on the concrete surface, and then apply 2~3 protective coatings. The coating amount is about 0.5Kg / m 2 ~1.0Kg / m 2 ; The fourth is poor environmental protection. Many of the existing domestic concrete protective coatings contain VOC, which is harmful to the environment.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Protective coating material for concrete bridge structure surface based on pure acrylic emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The concrete bridge structure surface protective coating material based on pure acrylic emulsion is made of the following substances by weight:

[0073] 75 parts of pure acrylic emulsion;

[0074] 1 part bentonite;

[0075] 0.3 parts of water-based anti-aging agent;

[0076] 1 part of titanium dioxide;

[0077] 1 part sericite;

[0078] 3 parts of functional auxiliary system;

[0079] 1.5 parts of adjusting auxiliary system;

[0080] 0.5 parts of leveling thickener;

[0081] 5 parts of water.

[0082] Among them, the solid content of pure acrylic emulsion is 48%;

[0083] Water-based anti-aging agent chooses water-based anti-aging agent SLH-201;

[0084] Titanium dioxide choose titanium dioxide RX-237;

[0085] Sericite selects sericite GA-1;

[0086] The functional additive system is composed of hydrophobic agent, stain resistance agent and adhesion promoter mixed in a mass ratio of 3:1:2; among them, the hydrophobic agent is selected from hydrophobic agent S...

Embodiment 2

[0096] The concrete bridge structure surface protective coating material based on pure acrylic emulsion is made of the following substances by weight:

[0097] 80 parts of pure acrylic emulsion;

[0098] 2 parts of bentonite;

[0099] 0.4 parts of water-based anti-aging agent;

[0100] 2 parts of titanium dioxide;

[0101] Sericite 2 parts;

[0102] 5 parts of functional auxiliary system;

[0103] 2.5 parts of adjusting auxiliary system;

[0104] 1.2 parts of leveling thickener;

[0105] 7 parts of water.

[0106] Among them, the solid content of pure acrylic emulsion is 50%;

[0107] Water-based anti-aging agent chooses water-based anti-aging agent SLH-201;

[0108] Titanium dioxide choose titanium dioxide RX-237;

[0109] Sericite selects sericite GA-1;

[0110] The functional additive system is composed of hydrophobic agent, stain resistance agent and adhesion promoter mixed in a mass ratio of 3:1:2; among them, the hydrophobic agent is selected from hydrophobic a...

Embodiment 3

[0120] The concrete bridge structure surface protective coating material based on pure acrylic emulsion is made of the following substances by weight:

[0121] 85 parts of pure acrylic emulsion;

[0122] 3 parts of bentonite;

[0123] 0.5 parts of water-based anti-aging agent;

[0124] 3 parts of titanium dioxide;

[0125] Sericite 3 parts;

[0126] 7 parts of functional auxiliary system;

[0127] 3.5 parts of adjusting auxiliary system;

[0128] 2 parts of leveling thickener;

[0129] 10 parts of water.

[0130] Among them, the solid content of pure acrylic emulsion is 52%;

[0131] Water-based anti-aging agent chooses water-based anti-aging agent SLH-201;

[0132] Titanium dioxide choose titanium dioxide RX-237;

[0133] Sericite selects sericite GA-1;

[0134] The functional additive system is composed of hydrophobic agent, stain resistance agent and adhesion promoter mixed in a mass ratio of 3:1:2; among them, the hydrophobic agent is selected from hydrophobic ag...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a concrete bridge structure surface protective coating material based on pure acrylic emulsion and a preparation method thereof. Most of the conventional concrete surface protective coatings are poor in carbonization resistance and ageing resistance and complex in brushing process steps. The concrete bridge structure surface protective coating material is prepared by mixing the following components together in parts by weight: 75 to 85 parts of pure acrylic emulsion, 1 to 3 parts of pure acrylic emulsion, 0.3 to 0.5 part of a water-based anti-aging agent, 1 to 3 parts of titanium pigment, 1 to 3 parts of sericite, 3 to 7 parts of a functional auxiliary agent system, 1.5 to 3.5 parts of a regulating auxiliary agent system, 0.5 to 2 parts of a leveling-type thickening agent and 5 to 10 parts of water, wherein the functional auxiliary agent system consists of a hydrophobing agent, a stain-resistant agent and an adhesive force accelerant in a mass ratio of 3:1:2; and the regulating auxiliary agent system consists of an antifoaming agent and a dispersant in a mass ratio of 1:6. By adopting the concrete bridge structure surface protective coating material, concrete achieves an excellent protection effect under an accelerated carbonization condition, the carbonization of the concrete is delayed, the ageing resistance of the concrete is excellent, the coating brushing process steps are simple, and all links from production to construction are safe and environment-friendly without environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of concrete protection, and in particular relates to a protective coating material for the surface of concrete bridge structures based on pure acrylic emulsion and a preparation method thereof. Background technique [0002] Concrete is a widely used building material with excellent durability, but under the long-term erosion of the general atmospheric environment (carbon dioxide, water, oxygen, etc.) and its own performance defects (pores, micro-cracks, etc.), concrete carbonation will occur Corrosion, and directly lead to the occurrence of corrosion of its internal steel bars, thus causing a series of diseases such as concrete spalling, rust swelling cracks, etc., seriously restricting the durability and safety of concrete bridges. [0003] Carbonation of concrete is mainly due to CO 2 Diffusion penetrates into the interior of the concrete, and the pores near the reinforcement in the concrete Ca(OH) 2 The...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/04C09D7/12
Inventor 吴明先葛胜锦翟敏刚高山吕晓霞盖卫鹏赵秋华汪明天杨安
Owner CCCC CIVIL ENG SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products