A kind of spraying type concrete pavement brick transparent protective agent and preparation method thereof

A technology for concrete pavement and transparent protection, applied in coatings, anti-corrosion coatings, polyurea/polyurethane coatings, etc. Easy and fast construction

Active Publication Date: 2021-11-23
山西欧贝姆纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, this kind of brick is a concrete product made of granular coarse aggregate, fine aggregate, cement hydrate and other related additives through mixing, molding, curing and other processes. For the same reasons, there are often some quality problems that affect its service life, such as surface layer shedding, fading, pan-alkaline and other issues
In particular, concrete pavement bricks are exposed to the air for a long time during use, and the surface is extremely prone to dehydration and micro-cracks, which affect appearance and durability
In addition, concrete pavement bricks will be eroded by rainwater and light radiation after long-term exposure to the natural environment. Especially in the current severe environmental situation, rainwater is usually weakly acidic, which will corrode the bricks and seriously affect their durability. In addition, it is often crushed by heavy-duty vehicles, causing the surface layer to gradually fall off

Method used

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  • A kind of spraying type concrete pavement brick transparent protective agent and preparation method thereof
  • A kind of spraying type concrete pavement brick transparent protective agent and preparation method thereof
  • A kind of spraying type concrete pavement brick transparent protective agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The protective agent described in this example, the raw materials and dosage used in the preparation are shown in Table 1.1 and Table 1.2 below.

[0055] Preparation raw materials and consumption of protective agent in table 1.1 embodiment 1

[0056]

[0057] Table 1.2 Preparation raw materials and proportioning of epoxy-modified polyurethane prepolymer in Example 1

[0058]

[0059] In this embodiment 1, the preparation method of protecting agent is:

[0060] (1) Mix epoxy-modified polyurethane prepolymer with urethane-grade organic solvent, fully stir and disperse evenly under vacuum conditions, and the stirring rate is 2500-2800r / min;

[0061] (2) Add latent curing agent, silane coupling agent, anti-aging agent, organosilicon defoamer and wetting agent, stir and disperse evenly under vacuum conditions, and make the transparent protective agent for the sprayed concrete pavement bricks, in nitrogen Medium protection storage for later use.

[0062] Among them, th...

Embodiment 2

[0065] The protective agent described in this example, the raw materials and dosage used in the preparation are shown in Table 2.1 and Table 2.2 below.

[0066] Preparation raw materials and consumption of protective agent in table 2.1 embodiment 2

[0067]

[0068] Table 2.2 Preparation raw materials and proportioning of epoxy-modified polyurethane prepolymer in Example 2

[0069]

[0070]

[0071] The preparation method of protective agent and epoxy-modified polyurethane prepolymer is the same as embodiment 1.

Embodiment 3

[0073] The protective agent described in this example, the raw materials and dosage used in the preparation are shown in Table 3.1 and Table 3.2 below.

[0074] Preparation raw materials and consumption of protective agent in table 3.1 embodiment 3

[0075]

[0076] Table 3.2 Preparation raw materials and proportioning of epoxy-modified polyurethane prepolymer in Example 3

[0077]

[0078] The preparation method of protective agent and epoxy-modified polyurethane prepolymer is the same as embodiment 1.

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Abstract

The invention discloses a spray-coated concrete pavement brick transparent protective agent and a preparation method thereof, which belongs to the technical field of pavement bricks, and is made of the following raw materials: 30-55 parts of epoxy-modified polyurethane prepolymer; urethane grade organic solvent 40‑65 parts; 4‑12 parts of latent curing agent; 0.5‑2 parts of silane coupling agent; 0.3‑1 part of antiaging agent; 0.3‑1 part of silicone defoamer; 0.1‑1 part of wetting agent. The spray-coated concrete pavement brick transparent protective agent provided by the invention has high permeability, can prevent acid rain and other harmful substances from entering and exiting the concrete pavement brick, not only protects the concrete pavement brick, but also strengthens it, and can meet the needs of concrete pavement. The protection requirements of bricks under various environmental conditions improve the service life of concrete pavement bricks. Moreover, the production process of the protective agent is simple, and the construction is easy and fast.

Description

technical field [0001] The invention relates to a spray-coated transparent protective agent for concrete pavement bricks and a preparation method thereof, belonging to the technical field of pavement bricks. Background technique [0002] As a widely used building material, concrete pavers play a huge role in modern construction projects. Usually, this kind of brick is a concrete product made of granular coarse aggregate, fine aggregate, cement hydrate and other related additives through mixing, molding, curing and other processes. For the same reasons, there are often some quality problems that affect its service life, such as surface shedding, fading, pan-alkali and other issues. In particular, concrete pavement bricks are exposed to the air for a long time during use, and the surface is prone to dehydration and micro-cracks, which affect the appearance and durability. In addition, concrete pavement bricks will be eroded by rainwater and light radiation after long-term ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D5/08C09D7/63C08G18/64
CPCC08G18/6407C08G2150/90C09D5/08C09D175/04C09D7/63C08K5/544C08K5/5435C08K5/548
Inventor 李国遵闫丞佑郭昊茹
Owner 山西欧贝姆纳米科技有限公司
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