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Interwoven composite fiber for improving pavement performance of asphalt mixture

An asphalt mixture and composite fiber technology, which is applied in the field of interwoven composite fibers to achieve good asphalt holding capacity, improve high temperature stability and durability, and high stiffness and strength.

Active Publication Date: 2014-09-24
HUITONG ROAD & BRIDGE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an interwoven composite fiber that improves the road performance of asphalt mixture, which can solve the problems of high temperature stability, low temperature crack resistance and water stability of the asphalt concrete surface, and can Choose to use under different climate zone conditions

Method used

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  • Interwoven composite fiber for improving pavement performance of asphalt mixture
  • Interwoven composite fiber for improving pavement performance of asphalt mixture
  • Interwoven composite fiber for improving pavement performance of asphalt mixture

Examples

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Effect test

Embodiment 1

[0056] An interwoven composite fiber for improving road performance of asphalt mixture, including components: A fiber: B fiber: C fiber=1:1:2.

[0057] The using method of the interwoven composite fiber of the present invention is as follows:

[0058] The amount of interwoven composite fiber is 0.3% of the total mass of asphalt mixture. In the mixing process, the interwoven composite fiber is added in the "dry method" process. First, the interwoven composite fiber and aggregate are dry-mixed for 60 seconds to make them evenly dispersed in the mineral material, and then the base asphalt is added and mixed. Mix for 60s, finally add mineral powder, mix for 60s, the total mixing time is 3min.

Embodiment 2

[0060] An interwoven composite fiber for improving the road performance of asphalt mixture, including components: A fiber: B fiber: C fiber = 1:1:1.

[0061] The using method of the interwoven composite fiber of the present invention is as follows:

[0062] The amount of interwoven composite fiber is 0.3% of the total mass of asphalt mixture. In the mixing process, the interwoven composite fiber is added in the "dry method" process. First, the interwoven composite fiber and aggregate are dry-mixed for 60 seconds to make them evenly dispersed in the mineral material, and then the base asphalt is added and mixed. Mix for 60s, finally add mineral powder, mix for 60s, the total mixing time is 3min.

Embodiment 3

[0064] An interwoven composite fiber for improving road performance of asphalt mixture, including components: A fiber: B fiber: D additive = 3:2:3.

[0065] The using method of the interwoven composite fiber of the present invention is as follows:

[0066] The amount of interwoven composite fiber is 0.3% of the total mass of asphalt mixture. In the mixing process, the interwoven composite fiber is added in the "dry method" process. First, the interwoven composite fiber and aggregate are dry-mixed for 60 seconds to make them evenly dispersed in the mineral material, and then the base asphalt is added and mixed. Mix for 60s, finally add mineral powder, mix for 60s, the total mixing time is 3min.

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Abstract

The invention relates to an interwoven composite fiber for improving pavement performance of an asphalt mixture, which comprises a first addition component, a second addition component and a third addition component, wherein the first addition component is a fiber A; the second addition component is a fiber B; and the third addition component is a fiber C or additive D. The composite fiber can solve the problems of high-temperature stability, low-temperature crack resistance, water stability and the like in the asphalt concrete carpet, and can be alternatively used under different climatic region conditions.

Description

technical field [0001] The invention relates to an additive for improving the road performance of asphalt mixture, in particular to an interwoven composite fiber for improving the road performance of asphalt mixture. Background technique [0002] In recent years, the highway network with expressway as the main line has developed rapidly. Asphalt pavement has been widely used in my country's highways due to its excellent characteristics such as smooth surface, no joints, comfortable driving, low noise, short construction period and convenient maintenance. However, with the rapid development of the national economy, the rapid growth of traffic volume and the increasing vehicle load, higher and higher requirements are put forward for the performance of expressway asphalt pavement. , ruts, cracks, oil flooding, looseness and other diseases have caused huge economic losses and left hidden dangers for driving. [0003] As a viscoelastic material, asphalt has a relatively low mole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B16/06C04B14/46C04B26/26
Inventor 张忠山蔡献东岳静芳肖淑青禹海龙崔静张菊峰赵洪宇李艳明梁志强尹江媛张硕欣
Owner HUITONG ROAD & BRIDGE CONSTR GROUP
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