A kind of crude fiber reinforced asphalt mixture

A technology of asphalt mixture and crude fiber, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of insufficient strength of asphalt mixture and low cost performance, and achieve the effect of prolonging life and improving heavy load resistance

Inactive Publication Date: 2018-10-26
余姚市交通规划设计研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention solves the problems of insufficient strength and low cost performance of the asphalt mixture prepared by the prior art

Method used

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  • A kind of crude fiber reinforced asphalt mixture
  • A kind of crude fiber reinforced asphalt mixture
  • A kind of crude fiber reinforced asphalt mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] The composite crude fiber was added to the asphalt mixture, the temperature was raised to 150° C., and the temperature was maintained and stirred for 55 seconds to prepare the crude fiber reinforced asphalt mixture. The composite crude fiber adopts PE / PET type crude fiber, the PE content is 30%, the tensile strength is ~700MPa, the modulus is ~7000MPa, the diameter is 0.6mm, and the length is 60mm; the content of the composite crude fiber is 4Kg (per ton of asphalt mixture).

Embodiment 2

[0065] The composite crude fiber was added to the asphalt mixture, the temperature was raised to 220° C., and the temperature was maintained and stirred for 40 seconds to prepare the crude fiber reinforced asphalt mixture. The composite crude fiber adopts PE / PET type crude fiber, the PE content is 30%, the tensile strength is ~700MPa, the modulus is ~7000MPa, the diameter is 2mm, and the length is 60mm; the content of the composite crude fiber is 5Kg (per ton of asphalt mixture).

Embodiment 3

[0067] The composite crude fiber was added to the asphalt mixture, the temperature was raised to 150° C., and the temperature was maintained and stirred for 55 seconds to prepare the crude fiber reinforced asphalt mixture. The composite crude fiber adopts PE / PET type crude fiber, the PE content is 30%, the tensile strength is ~700MPa, the modulus is ~7000MPa, the diameter is 0.6mm, and the length is 60mm; the content of the composite crude fiber is 6Kg (per ton of asphalt mixture).

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Abstract

The invention discloses a crude fiber reinforcement bituminous mixture used for a bituminous road surface. The crude fiber reinforcement bituminous mixture is prepared from, by weight, 1000 parts of bituminous mixtures and 2-10 parts of composite crude fibers, wherein the diameter of the composite crude fibers is 0.1-2 mm, and the length of the composite crude fibers is 20-200 mm. The crude fibers can modify bitumen and form a powerful mechanical system with the bituminous mixtures, and in this way, the capacity of the bituminous road surface in resisting heavy loads and excess loads is improved by times, and the service life of the bituminous road surface is prolonged by times.

Description

technical field [0001] The invention belongs to the field of road construction, and in particular relates to a special coarse fiber reinforced asphalt mixture used for asphalt pavement. Background technique [0002] Asphalt is a viscoelastic-plastic material that is particularly sensitive to temperature. In general, asphalt with good low-temperature crack resistance is easy to flow and deform at high temperature, while asphalt with good high-temperature properties is easy to become brittle and hard at low temperature. Therefore, in areas with a large temperature difference between summer and winter, ideal asphalt binders cannot be selected. [0003] As a seamless continuous pavement, asphalt pavement has the advantages of good mechanical strength, stable driving, no dust, no vibration, low noise and easy mechanical construction; but there are also some pavements prone to early damage, rutting, cracking, etc. Disadvantages such as oil flooding and pits. [0004] At present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L23/06C08L67/02C08L53/02C08L77/06
CPCC08L95/00C08L2205/03C08L2205/16C08L23/06C08L67/02C08L53/02C08L77/06
Inventor 孙岳军舒剑爽陆仕祥
Owner 余姚市交通规划设计研究院
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