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Pavement coating material and pavement coating

A technology of cladding materials and raw materials, which is applied in the field of pavement cladding materials and pavement cladding, and can solve the problem of large interlayer internal stress between surface material and substrate deformation, easy arching and deformation of epoxy pavement, and difference in thermal expansion coefficient Larger problems, to achieve the effect of not easy to arch deformation, reduce internal stress, not easy to fall off

Inactive Publication Date: 2017-05-31
江苏北极星交通产业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the epoxy resin materials in the prior art have certain defects. Due to the large difference in thermal expansion coefficient between the ordinary epoxy resin glue and the steel bridge deck, the thermal compatibility is poor, and the surface layer will be damaged when the ambient temperature changes. The inconsistency between the deformation of the material and the base material will generate a large interlayer internal stress, which will cause the thin layer of epoxy pavement on the steel bridge deck to be easily arched, deformed or peeled off

Method used

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  • Pavement coating material and pavement coating

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preparation example Construction

[0039] The preparation method of the above-mentioned pavement cladding material can be obtained by mixing the epoxy resin component and the fine aggregate component.

[0040] The pavement coating of the present invention is formed by coating or spreading the above-mentioned pavement coating on the road surface.

[0041] Here, the thickness of coating or spraying can be referred to as 5-7 mm. The pavement inside can be concrete pavement.

[0042] What is not mentioned above is applicable to the prior art.

Embodiment 1

[0044] Step 1. Perform surface treatment on the original cement concrete pavement base, repair all holes and defects in the surface layer, and ensure that the concrete base is in a dry state.

[0045] Step 2. Before the cladding pavement, use the roughening machine to roughen the concrete surface to increase the specific surface area of ​​the road surface and enhance the adhesion between the epoxy coating and the cement concrete pavement. After the roughening treatment, use adhesive tape to seal all bridge decks Deformation joints, the deformation joints shall not be covered with epoxy coating.

[0046] Step 3, preparation of pavement cladding material. First, the epoxy resin component (including epoxy resin and diluent with a mass ratio of 1:1) and the curing agent component contain the curing agent and diluent with a mass ratio of 1:1 according to the mass ratio of 1:1. The agent is stirred in a high-speed dispersing mixer, and the stirrer is stirred at a low speed of 400-6...

Embodiment 2

[0049] Step 1. Surface treatment is carried out on the base surface of the original cement concrete pavement, and all holes and defects of the base surface are repaired to ensure that the concrete base surface is in a dry state.

[0050] Step 2. Before the cladding pavement, use the roughening machine to roughen the concrete surface to increase the specific surface area of ​​the road surface and enhance the adhesion between the epoxy coating and the cement concrete pavement. After the roughening treatment, use adhesive tape to seal all bridge decks Deformation joints, the deformation joints shall not be covered with epoxy coating.

[0051] Step 3, preparation of pavement cladding material. First, the epoxy resin component (including epoxy resin and diluent with a mass ratio of 1:1.2) and the curing agent component contain the curing agent and diluent with a mass ratio of 1:1.2 according to the mass ratio of 1:1.2 The agent is stirred in a high-speed dispersing mixer, and the ...

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Abstract

The invention discloses a pavement coating material and a pavement coating. The pavement coating material comprises a cured epoxy product and fine aggregates dispersed into the cured epoxy product. The cured epoxy product comprises raw materials of an epoxy resin component and a curing agent component at the mass ratio of 1:(1-1.2); the epoxy resin component comprises epoxy resin and a diluent at the mass ratio of 1:(1-1.2); and the curing agent component comprises the curing agent and a diluent at the mass ratio of 1:(1-1.2). The pavement coating material comprises the fine aggregates, so that the internal stress between the cured epoxy product and the pavement is reduced and the coating is not liable to fall off or arch and deform.

Description

technical field [0001] The invention relates to the technical field of pavement maintenance materials, in particular to pavement cladding materials and pavement cladding. Background technique [0002] Pavement cladding materials, such as reinforced concrete bridge pavement cladding materials have two forms: one is rigid pavement, that is, cement concrete pavement, and the other is flexible pavement, which is asphalt concrete pavement, while cement concrete pavement The bridge deck in the installed form has the disadvantages of low tensile strength, hard and brittle texture, poor impact resistance, poor fatigue performance, and easy cracking. It is becoming more and more difficult to apply to the current heavy traffic and overload conditions. [0003] At present, many highway bridges across the country are undergoing "white to black" upgrades. The traditional overlay technology is to add a layer of asphalt wear layer with a thickness of 1.5cm to 2.5cm on the original concrete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14C04B14/32C04B14/14E01D19/08
CPCC04B26/14C04B14/14C04B14/324C04B2111/0075C04B2201/50E01D19/083C04B24/023
Inventor 商健林方博文王永辉张华丽徐海青张帅
Owner 江苏北极星交通产业集团有限公司