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Fiber-reinforced epoxy asphalt material and preparation method thereof

An epoxy bitumen material and fiber-reinforced technology, which can be used in building thermal insulation materials, on-site coagulation pavement, building components, etc., can solve problems such as material damage and material toughness reduction.

Inactive Publication Date: 2012-09-19
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the temperature is high in summer, in order to ensure the high temperature resistance of epoxy asphalt, it must have a high degree of crosslinking, but too high a degree of crosslinking will reduce the toughness of the material. destroy

Method used

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  • Fiber-reinforced epoxy asphalt material and preparation method thereof
  • Fiber-reinforced epoxy asphalt material and preparation method thereof
  • Fiber-reinforced epoxy asphalt material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0040] Example 2: Accurately weigh 30g of asphalt and add it to a stirred tank at normal pressure and heat it to 120°C to melt it, weigh 5g of polypropylene fiber (Shanghai Xianghu Industrial Co., Ltd., the same below), 8g of methyltetrahydrophthalic anhydride, 15g mixture of adipic acid and sebacic acid, 5g mixture of polysebacic acid and isobutadiene dioic anhydride, add them all at 120°C to the normal pressure stirring tank at one time, stir for 1 hour until the viscosity of the system is almost uniform, then add 20g epoxy The resin was mixed evenly, and the properties of the fiber-reinforced epoxy asphalt material prepared were shown in Table 1.

Embodiment 3

[0041] Embodiment 3: Accurately weigh 30g of asphalt and add it to an atmospheric pressure stirred tank and heat it to 120°C to melt it, weigh 5g of polyester fiber (Binzhou Jinlong Plastic Co., Ltd., the same below), 8g of methyltetrahydrophthalic anhydride, 15g mixture of adipic acid and sebacic acid, 5g mixture of polysebacic acid and isobutadiene dioic anhydride, add them all at 120°C to the normal pressure stirring tank at one time, stir for 1 hour until the viscosity of the system is almost uniform, then add 20g epoxy The resin was mixed evenly, and the properties of the fiber-reinforced epoxy asphalt material prepared were shown in Table 1. .

[0042] Table 1 Performance table of epoxy asphalt

[0043]

[0044]

Embodiment 5

[0047] Example 5: Accurately weigh 300g of asphalt and add it to an atmospheric pressure stirred tank and heat it to 120°C to melt it, weigh 50g of polypropylene fiber, 80g of methyltetrahydrophthalic anhydride, 150g of adipic acid and sebacic acid, Add 50g of the mixture of polysebacic acid and isobutylene dioic anhydride to a 120°C normal-pressure stirred tank at one time, stir for 1 hour until the viscosity of the system is almost uniform, then add 200g of epoxy resin and mix evenly to prepare a fiber-reinforced ring. Oxygen asphalt components.

[0048] Accurately weigh 10Kg of AC-10 aggregate that has been placed in an oven at 150°C for more than 4 hours at a constant temperature, add it to a stirring pot at 150°C, and add the prepared epoxy asphalt component according to the oil-stone ratio of 7.0%, continue stirring for 90s, press the test It is required to prepare test pieces and keep the pieces in an oven at 150°C for more than 6h. The properties of the prepared fiber...

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Abstract

The invention discloses a fiber-reinforced epoxy asphalt material and a preparation method thereof, belonging to the technical field of chemical new materials for roads and bridges. The fiber-reinforced epoxy asphalt material consists of a part A and a part B, wherein the part A consists of the following components in parts by mass: 40-100 parts of asphalt, 0.1-20 parts of fibers, 5-50 parts of methyl tetrahydrophthalic anhydride, 10-100 parts of dicarboxylic acid, 10-100 parts of dicarboxylic acid polyanhydride and 0.1-1.0 part of an epoxy resin curing accelerant; the part B is an epoxy resin; and the mass ratio of the part A to the part B is (1-5):1. Special equipment is not required during preparation, an operation process is simple, and environment friendliness is realized; and after the material is cured, a three-dimensional interpenetrating polymer network structure (I PN structure) with 'low overall crosslinking density and high local crosslinking density' is formed, so that the material has excellent high-temperature use strength, high deformation capability and extremely high low temperature toughness, and can be applied as a paved layer on large-span steel bridge surfaces and road surfaces in highly-cold climate regions.

Description

technical field [0001] The invention relates to a fiber-reinforced epoxy asphalt material and its preparation method, in particular, it provides a kind of fiber-reinforced epoxy asphalt material with high service strength and deformation capacity, and excellent low-temperature toughness, which is suitable for large-span steel bridge decks and alpine climate regions. The invention relates to epoxy asphalt for road paving, which belongs to the technical field of new chemical materials for roads and bridges. Background technique [0002] With the rapid development of highway construction in my country, the national trunk road network is being formed, and the pace of high-grade expressway construction is accelerating. In recent years, the average annual mileage of expressways in China has reached 5,000 kilometers. Network Planning”, the state will spend more than 2 trillion yuan on expressway construction, and by 2030, the mileage of expressways in my country will reach 100,000 k...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L63/00C08K7/04C08K7/10C08K7/12C08K7/14C08K7/06C08J5/04C08G59/42C04B26/26E01C7/26
Inventor 周威蒋涛文俊王国成赵辉张刚申任小明蔡芳昌
Owner HUBEI UNIV
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