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Asphalt concrete interlayer bonding material and preparation method and application method thereof

A technology of asphalt concrete and bonding material, applied in the direction of coagulation pavement, adhesive type, ester copolymer adhesive, etc. for on-site paving, which can solve the problem of reducing road use effect and service life, bonding strength and resistance. Insufficient shear strength, easy to cause shifting, delamination and other problems, to achieve the effect of improving convenience, improving interlayer bonding strength and shear strength, and high strength

Active Publication Date: 2019-06-11
CHONGQING PENGFANG PAVEMENT ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When roads, bridges and tunnels are paved with asphalt concrete, it is usually necessary to set up a waterproof bonding layer. Commonly used film-based asphalt-based waterproof coatings are prone to shifting and delamination due to insufficient bonding strength and shear strength with asphalt concrete. Diseases, reducing the use effect and service life of the road

Method used

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  • Asphalt concrete interlayer bonding material and preparation method and application method thereof
  • Asphalt concrete interlayer bonding material and preparation method and application method thereof
  • Asphalt concrete interlayer bonding material and preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]

[0017] The components were mixed uniformly according to the proportion and then blow molded to form hollow pellets with a diameter of 3 mm and a wall thickness of 0.6 mm.

Embodiment 2

[0019]

[0020] The components were mixed uniformly according to the proportion, and then blow molded to form hollow pellets with a diameter of 2 mm and a wall thickness of 0.5 mm.

Embodiment 3

[0022]

[0023]

[0024] The components were mixed uniformly according to the proportion, and then blow-molded to form hollow pellets with a diameter of 1 mm and a wall thickness of 0.3 mm.

[0025] On steel plate and cement concrete base surface, brush 0.6~1.0Kg / m 2 epoxy resin, sprinkle the asphalt concrete interlayer bonding material prepared in Examples 1 to 3, clean up the unadhered excess material after the epoxy resin is cured, and then add different types of asphalt concrete, the interlayer bonding The strength and shear strength are shown in the table below:

[0026]

[0027] The advantage of the present invention is that the interlayer adhesive material used has a suitable melting point, and it is prepared into hollow pellets by blow molding, which can be completely melted and embedded into the interior of the asphalt mixture during the paving and rolling process of the asphalt mixture , improve the interlayer bonding strength and shear strength between the...

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Abstract

The invention discloses an asphalt concrete interlayer bonding material and a preparation method and an application method thereof. The interlayer bonding material is hollow spheres with a diameter of1-4 mm and a wall thickness of 0.3-1 mm which are formed by uniformly melting mixing thermoplastic resin, viscosity reducing resin and a plasticizer, and performing blow molding. When the interlayerbonding material is applied, a layer of epoxy resin coats a base surface of a concrete bridge deck, a tunnel or a steel bridge deck, the amount of the epoxy resin is 0.6-1.0Kg / m<2>, and then the hollow spherical bonding material prepared by the invention is spreaded to cover the base surface completely, and the firmly-unbonded superfluous bonding material is cleaned and recovered after the epoxy resin is cured. The interlayer bonding material provided by the invention is heated, melted and squeezed into the interior of the asphalt concrete during the spreading and rolling process of the asphalt concrete, so that the asphalt concrete and the base surface form a whole, the interlayer bonding strength and shear strength are high, and the asphalt concrete is not easy to delaminate.

Description

technical field [0001] The invention relates to the field of road materials, in particular to an interlayer bonding material for a cement concrete bridge deck, a tunnel or steel bridge deck asphalt concrete, a preparation method and an application method thereof. Background technique [0002] When roads, bridges and tunnels are paved with asphalt concrete, it is usually necessary to set up a waterproof bonding layer. Commonly used film-based asphalt-based waterproof coatings are prone to shifting and delamination due to insufficient bonding strength and shear strength with asphalt concrete. Diseases, reducing the use effect and service life of the road. Contents of the invention [0003] Based on the technical problems existing in the background technology, combined with the technical characteristics of asphalt concrete paving and rolling, the present invention proposes an asphalt concrete interlayer bonding material and its preparation method and application method. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J133/10C09J157/02C09J11/08C09J11/06E01C7/32
Inventor 马志君郑煜刘艳
Owner CHONGQING PENGFANG PAVEMENT ENG RES INST
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