Novel epoxy resin adhesive for paving steel bridge deck and preparation method thereof

A technology of epoxy resin glue and epoxy resin, which is applied in the field of new epoxy resin adhesives and its preparation, can solve the problems of fatigue damage, easy rutting, slow curing, etc., achieve excellent performance, and improve fatigue cracking resistance , Good performance at high and low temperature

Active Publication Date: 2017-06-20
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the steel bridge deck pavement used in the world is mainly asphalt concrete or epoxy asphalt concrete, but this kind of material has the following disadvantages: (1) prone to early diseases such as rutting, cracking, shifting, and fatigue damage; (2) Heating is required during paving, precise temperature control is required, and the post-curing is too slow, and the opening time for traffic is long

Method used

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  • Novel epoxy resin adhesive for paving steel bridge deck and preparation method thereof

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preparation example Construction

[0016] The preparation method of the novel epoxy resin adhesive material comprises the following steps: (a) Weighing epoxy resin, diluent, and polyurethane prepolymer in proportion, mixing them and stirring them at 80°C for 30-60 minutes to form group A (b) take imidazole curing agent, alicyclic ammonia curing agent, toughening agent, coupling agent, accelerator in proportion, mix and stir at room temperature for 30-60min to make B component; (c) A Components and B components are mixed evenly in proportion, and then the mixture of A and B components is added to the stone, mixed evenly, compacted and formed, and left for 2-24 hours.

[0017] The raw materials used in the present invention are generally commercially available.

Embodiment 1

[0019] Epoxy resin adhesive material and dosage ratio are as follows:

[0020] Resin adhesive: A component 8 unit weight

[0021] (Among them, 74 parts of E42 epoxy resin, 15 parts of polypropylene glycol diglycidyl ether, 11 parts of A70 polyurethane prepolymer)

[0022] Part B 2 units by weight

[0023] (Among them, 7 parts of dimethylimidazole, 20 parts of dimethyltetraethylimidazole, 55 parts of m-xylylenediamine, 16 parts of polyamide, 1 part of γ-aminopropyltriethoxysilane, 2,4, 6-tris(dimethylaminomethyl)phenol 1 part)

[0024] Stone: basalt crushed stone 84.4 unit weight

[0025] Mineral powder 5.6 unit weight

Embodiment 2

[0027] Epoxy resin adhesive material and dosage ratio are as follows:

[0028] Resin adhesive: A component 7.4 unit weight

[0029] (Among them, 67 parts of E42 epoxy resin, 14 parts of polypropylene glycol diglycidyl ether, and 19 parts of A50 polyurethane prepolymer)

[0030] Component B 2.2 unit weight

[0031] (Among them, 12 parts of dimethylimidazole, 29 parts of dimethyltetraethylimidazole, 40 parts of m-xylylenediamine, 16 parts of polyamide, 2 parts of γ-aminopropyltriethoxysilane, 2,4, 6-tris(dimethylaminomethyl)phenol 1 part)

[0032] Stone: basalt crushed stone 85.1 unit weight

[0033] Mineral powder 5.3 unit weight

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Abstract

The invention discloses a novel epoxy resin adhesive for paving a steel bridge deck and a preparation method thereof. The novel epoxy resin adhesive is prepared by stirring and compacting a resin adhesive and a stone material at normal temperature. The resin adhesive is prepared from components A and B in percentages by mass: X of the component A and (1-X) of the component B, wherein X is 0.6-0.9; the component A contains the following components in parts by weight: 50-80 parts of epoxy resin, 10-20 parts of a diluent and 10-25 parts of a polyurethane prepolymer; the component B contains the following components in parts by weight: 20-50 parts of an imidazole curing agent, 25-60 parts of an alicyclic ammonia curing agent, 10-30 parts of a thickener, 1-5 parts of a coupling agent and 1-3 parts of an accelerant. The resin adhesive and the stone material account for 7-13% by mass. The novel epoxy resin adhesive provided by the invention has the advantages of high strength, good high- and low-temperature property, certain deformation ability, no need of heating and stirring and the like, can be cured at a constant temperature, and is relatively short in curing time, and the open traffic time can be greatly shortened during construction.

Description

technical field [0001] The invention relates to the technical field of road and urban road building materials, in particular to a novel epoxy resin adhesive for steel bridge deck pavement and a preparation method thereof. Background technique [0002] The deck stiffness of long-span bridges is relatively small and the deformation is relatively large. The force and deformation of the steel deck pavement under the influence of traffic loads, wind loads, climate conditions, and temperature changes are very complicated. , stability and durability have higher requirements. At present, the steel bridge deck pavement used in the world is mainly asphalt concrete or epoxy asphalt concrete, but this kind of material has the following disadvantages: (1) prone to early diseases such as rutting, cracking, shifting, and fatigue damage; (2) Heating is required during paving, and precise temperature control is required, and the post-curing is too slow, and the opening time for traffic is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14C04B111/34
CPCC04B26/14C04B2111/343C04B2201/50C04B14/14C04B24/32C04B24/282C04B24/121C04B24/124C04B24/128C04B18/141C04B24/42C04B24/287
Inventor 潘攀王宁胡小弟白桃李子彧
Owner WUHAN INSTITUTE OF TECHNOLOGY
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