CPC-AC composite pavement fiber asphalt mixture and preparation method thereof

An asphalt mixture and CPC-AC technology are applied in the field of CPC-AC composite pavement fiber asphalt mixture and its preparation, and the field of fiber asphalt mixture of composite pavement surface layer, which can solve the problems of insufficient shear resistance of the asphalt surface layer, and achieve The effect of suitable promotion, improving shear resistance and improving shear resistance

Inactive Publication Date: 2017-04-26
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a CPC-AC composite pavement fiber asphalt mixture and its preparation method. By optimizing the gradation design, the shear force can be improved, thereby solving the problem of the shear resistance of the composite pavement asphalt surface layer. Early damage problems caused by insufficient

Method used

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  • CPC-AC composite pavement fiber asphalt mixture and preparation method thereof
  • CPC-AC composite pavement fiber asphalt mixture and preparation method thereof
  • CPC-AC composite pavement fiber asphalt mixture and preparation method thereof

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Embodiment 1

[0034] The CPC-AC composite pavement fiber asphalt mixture of this embodiment is composed of the following raw materials in parts by weight: 100 parts of ore material, 4.95 parts of asphalt, and 0.2 part of glass fiber. The asphalt is SBS modified by Shell matrix asphalt processing modification Asphalt, the gradation type of the mineral material is vibration compact AC-13 type (see Table 1 for the specific gradation composition).

[0035] Table 1 Vibration dense AC-13 type gradation composition

[0036]

Embodiment 2

[0038] The CPC-AC composite pavement fiber asphalt mixture of this embodiment is composed of the following raw materials in parts by weight: 100 parts of ore material, 4.9 parts of asphalt, and 0.2 part of glass fiber. The asphalt is SBS modified by Shell base asphalt processing modification Asphalt, the mineral material gradation type is multi-stage interlocking shear AC-16 type (see Table 2 for specific gradation composition).

[0039] Table 2 Multi-stage interlocking shear AC-16 type gradation composition

[0040]

Embodiment 3

[0042]The CPC-AC composite pavement fiber asphalt mixture in this embodiment is composed of the following raw materials in parts by weight: 100 parts of ore material, 4.8 parts of asphalt, and 0 parts of glass fiber. The asphalt is SBS modified by Shell matrix asphalt processing modification Asphalt, the gradation type of the mineral material is vibration compact AC-13 type (see Table 3 for the specific gradation composition).

[0043] Table 3 Vibration dense AC-13 type gradation composition

[0044]

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Abstract

The invention discloses a road pavement construction material and a mineral aggregate grading design method thereof, and particularly relates to a CPC-AC composite pavement fiber asphalt mixture and a mineral aggregate grading design method based on shear resistance. The mixture is prepared from, by weight, 100 parts of mineral aggregates, 3-6 parts of asphalt and 0-0.3 part of fiber which is glass fiber, the grading design method is a multi-stage interlocking method and a vibration compaction method, the grading types of the mineral aggregates are multi-stage interlocking AC-13 and AC-16 types and vibration compaction AC-13 and AC-16 types. The fiber asphalt mixture fully utilizes the excellent characteristics of the glass fiber, the shear resistance and permeation resistance capacity under dynamic water pressure of an asphalt concrete surface course can be effectively improved, the multi-stage interlocking method and the vibration compaction method are adopted for comparing and designing mineral aggregates, and the special requirements of a composite pavement on the shear resistance of the asphalt mixture are fully met.

Description

technical field [0001] The invention belongs to the technical field of road pavement, and relates to a road pavement construction material and a mineral material gradation design method thereof, in particular to a CPC-AC composite pavement fiber asphalt mixture and a preparation method thereof, which is used for the fiber asphalt of the composite pavement surface layer Mixture. Background technique [0002] At present, countries all over the world are constantly exploring new pavement structures and developing new pavement materials, so that the road pavement has sufficient strength, stability and good road performance. Through a lot of exploration and experimentation, many new pavement structures have emerged as the times require, and the composite pavement is produced under this background. Common composite pavements include ordinary concrete-asphalt concrete composite pavement (PCC-AC composite pavement), roller compacted concrete-asphalt concrete composite pavement (RCC...

Claims

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Application Information

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IPC IPC(8): C04B26/26C04B20/00C04B14/42
CPCC04B14/42C04B20/0076C04B26/26C04B2201/50C04B2111/0075
Inventor 郭寅川郑盼飞申爱琴李博成赵耀辉
Owner CHANGAN UNIV
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