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Epoxy asphalt for steel bridge deck pavement and preparation method thereof

A technology of epoxy asphalt and steel bridge deck, which is used in building components, building insulation materials, buildings, etc. to achieve the effects of improving stability and toughness, improving compatibility, improving low-temperature crack resistance and fatigue durability.

Active Publication Date: 2017-06-13
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its elongation at break at 25°C is only 216%, its tensile strength can only reach 1.89Mpa (MPa), its dynamic stability at 70°C can only reach 35,200 times / mm, and its bending fatigue performance can only reach 820,000 times , the strength, toughness, stability, low-temperature bending resistance and fatigue resistance of this warm-mixed epoxy asphalt need to be further improved

Method used

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  • Epoxy asphalt for steel bridge deck pavement and preparation method thereof
  • Epoxy asphalt for steel bridge deck pavement and preparation method thereof
  • Epoxy asphalt for steel bridge deck pavement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Get 60 parts of bisphenol A epoxy resin E-51, 12 parts of nitrile rubber bisphenol A type epoxy resin, 3 parts of benzyldimethylamine and 9 parts of dipropylene glycol dibenzoate and mix, stir for 1.2 hours, get Component A: Mix 40 parts of polyetheramine, 6 parts of diphenyl ether tetra-acid dianhydride, 3 parts of lauryl glycidyl ether and 9 parts of naphthalene oil, stir for 0.7 hours to obtain component B; take 90 parts of 70# petroleum The asphalt was heated to 140°C to obtain heated petroleum asphalt, and the aforementioned components A and B were mixed with the heated petroleum asphalt and stirred for 2.5 hours to obtain epoxy asphalt for steel bridge deck pavement.

Embodiment 2

[0030] Take 55 parts of bisphenol A epoxy resin, 10 parts of nitrile rubber bisphenol A epoxy resin, 1 part of triethanolamine and 4 parts of dioctyl phthalate and mix them for 1 hour to obtain component A; take 35 parts 1 part of dicyandiamide, 3 parts of polyazelaic anhydride, 2 parts of polypropylene glycol diglycidyl ester and 7 parts of asphalt tar were mixed and stirred for 0.5 hours to obtain component B; 84 parts of 90# petroleum asphalt were heated to 130°C to obtain Heated petroleum asphalt: Mix the A component, B component and heated petroleum asphalt obtained above, and stir for 2.5 hours to obtain epoxy asphalt for steel bridge deck paving.

Embodiment 3

[0032] Take 80 parts of bisphenol F type epoxy resin DER-354, 25 parts of nitrile rubber bisphenol A type epoxy resin, 6 parts of salicylic acid and 13 parts of dipropylene glycol dibenzoate and mix them for 1.5 hours to obtain A Components; take 45 parts of 3,3'-dimethyl-4,4'-diamino-dicyclohexylmethane, 10 parts of diphenyl ether tetra-acid dianhydride, 5 parts of lauryl glycidyl ether and 15 parts of naphthalene oil Mix and stir for 0.8 hours to obtain component B; take 100 parts of 70# petroleum asphalt and heat it to 150°C to obtain heated petroleum asphalt, mix the aforementioned component A, component B and heated petroleum asphalt, and stir for 3 Hours, to obtain epoxy asphalt for steel bridge deck pavement.

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Abstract

The invention discloses epoxy asphalt for steel bridge deck pavement and a preparation method thereof. The epoxy asphalt is prepared by a component A, a component B and 50-100 parts of petroleum asphalt, wherein the component A comprises 50-100 parts of epoxy resin, 0-40 parts of rubber modified epoxy resin, 1-10 parts of accelerator and 5-20 parts of diluent; the component B comprises 35-60 parts of latent curing agent, 1-10 parts of anhydride curing agent, 1-10 parts of toughening agent and 1-15 parts of compatibilizer. The epoxy asphalt has the advantages that the epoxy asphalt is high in toughness, high in stability, excellent in low-temperature crack resistance and fatigue durability, sufficient in construction reserved time in an environment of 160-190 DEG C, short in maintenance time under normal temperature, excellent in comprehensive performance, applicable to common steel bridge deck pavement and especially applicable to the deck pavement of heavy-load, high-temperature and large-span steel bridges and the paving of airport runway pavements and high-temperature-region pavements.

Description

technical field [0001] The invention relates to an epoxy asphalt material, in particular to an epoxy asphalt used for paving steel bridge decks. Background technique [0002] With the gradual expansion of my country's modern road and bridge infrastructure construction, more and more steel structure bridges have been built and put into operation. The force and deformation are relatively complicated, and its pavement materials, especially those used for high-temperature, heavy-load and long-span steel bridge decks, are a worldwide hotspot and difficulty. Epoxy asphalt pavement material has excellent mechanical properties and high temperature stability. Since it was successfully applied to Nanjing Yangtze River Second Bridge in 2001 and achieved good results, epoxy asphalt pavement material has been widely used in many domestic steel bridge deck pavement projects. With the promotion and engineering application, it has become one of the mainstream pavement materials for steel bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08L9/02C08L91/00C08L71/02C08K5/1515
CPCC08L63/00C08L95/00C08L2205/025C08L2205/035C08L9/02C08L91/00C08L71/02C08K5/1515
Inventor 郝增恒盛兴跃李璐
Owner 重庆市智翔铺道技术工程有限公司
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