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Construction method of asphalt concrete and asphalt concrete pavement

A technology of asphalt concrete and construction method, which is applied to coagulation pavement paved on site, roads, roads, etc., can solve the problems of water stability reduction of asphalt concrete, and achieve the effects of improving water stability, promoting dispersion, and reducing damage

Active Publication Date: 2022-07-15
SHANDONG LUQIAO CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to improve the problem that the water stability of asphalt concrete is reduced after adding graphite powder, and reduce the damage of asphalt concrete pavement due to the infiltration of snow water, this application provides a construction method for asphalt concrete and asphalt concrete pavement

Method used

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  • Construction method of asphalt concrete and asphalt concrete pavement
  • Construction method of asphalt concrete and asphalt concrete pavement
  • Construction method of asphalt concrete and asphalt concrete pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] An asphalt concrete comprises the following raw materials: 4.3kg of asphalt; 64.3kg of mineral material; 20kg of graphite powder; 0.21kg of polyester yarn; and 0.13kg of styrene-butadiene latex. Mineral grading is medium grain AC-16 type.

[0061] A construction method for asphalt concrete pavement, comprising the following steps:

[0062] S1. Preparation of asphalt concrete:

[0063] S11. Take each raw material of asphalt concrete according to the proportion, heat the mineral material to 185°C, add graphite powder and polyester filament to the heated mineral material for dry mixing, and the mixing time is 10s to obtain a dry mix.

[0064] S12. The styrene-butadiene latex is added to the asphalt and mixed evenly, and heated to 170° C., and then the dry mix is ​​added to the heated asphalt for mixing, and the mixing time is 50s to obtain asphalt concrete.

[0065] S2. Clean up the garbage and vegetation on the roadbed, level the roadbed, then spread the asphalt concret...

Embodiment 2-5

[0071] The difference between the following examples and Example 1 is: the consumption of each raw material is different, see Table 1 for details. The process parameters in the construction method are different, see Table 2 for details.

Embodiment 6

[0073] The difference between this embodiment and Embodiment 3 is that the mineral material gradation used in this embodiment is a fine-grained AC-10 type.

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Abstract

The present application relates to the field of road engineering, and specifically discloses a construction method of asphalt concrete and asphalt concrete pavement. An asphalt concrete comprises the following raw materials by weight: 4.3-5.7 parts of asphalt; 64.3-75.7 parts of mineral material; 20-30 parts of graphite powder; 0.21-1.35 parts of polyester yarn; A construction method for asphalt concrete pavement, comprising the following steps: S1, preparing asphalt concrete; S2, cleaning and leveling the roadbed, paving and rolling the asphalt concrete; S3, maintaining. The asphalt concrete of the present application has the advantages of improving the water stability of the asphalt concrete after adding graphite powder, and reducing the damage of the asphalt concrete pavement caused by the infiltration of snow water.

Description

technical field [0001] The present application relates to the field of road engineering, more specifically, it relates to a construction method of asphalt concrete and asphalt concrete pavement. Background technique [0002] Asphalt concrete is a mixture of artificially selected mineral materials with a certain gradation composition and a certain proportion of road asphalt under strict control conditions. Asphalt concrete pavement refers to the pavement with asphalt concrete as the surface layer. [0003] In the related art, asphalt concrete is an electrical insulating material. In order to make it conductive, a certain amount of graphite powder is added to the asphalt concrete as a conductive filler to replace part of the mineral materials, and the graphite powder accounts for 20% of the total mass of the asphalt, graphite powder and mineral materials. % to 30%, the asphalt concrete can generate electrical conductivity. After snowing, the asphalt concrete pavement can be e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26E01C7/18E01C7/22E01C7/26C04B16/06C04B18/12C04B24/26C04B20/10
CPCC04B26/26E01C7/18E01C7/182E01C7/22E01C7/262E01C7/265C04B16/0683C04B24/2676C04B20/1055C04B18/12C04B2111/0075C04B14/024Y02W30/91
Inventor 项俊宁李相国魏东张军圣高照刘昶李先重石学良李博邴召建
Owner SHANDONG LUQIAO CONSTR
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