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Maintenance and Construction Method of Infiltrating Wear Layer of Asphalt Pavement

A technology of asphalt pavement and construction method, applied in the direction of roads, roads, and on-site coagulation pavement, etc., can solve the problems of unrepairable and improved network cracks, easy wear of the wear layer, limited duration, etc., and achieves fast construction speed, The effect of improving the density and improving the flexibility

Active Publication Date: 2020-11-20
江苏瑞文戴尔交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above preventive maintenance methods have the functions of delaying the development of diseases, repairing ruts, and improving the anti-skid performance of the original asphalt pavement, but they cannot repair and improve the asphalt aging, looseness, water seepage and early network cracks that have occurred on the original pavement.
The overall strength of the original pavement is insufficient, which will make the overlying wear layer easy to wear and peel off, and the duration of its maintenance effect is limited. Generally, obvious degradation will begin within 2-3 years of use

Method used

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  • Maintenance and Construction Method of Infiltrating Wear Layer of Asphalt Pavement
  • Maintenance and Construction Method of Infiltrating Wear Layer of Asphalt Pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Embodiment one: the preparation of asphalt pavement cementing agent:

[0049] The cementing agent for asphalt pavement of the present invention is prepared by mixing the following raw materials:

[0050] Heavy naphthenic distillate oil: 300Kg, selected from hydrodesulfurized heavy naphthenic petroleum light distillate (produced by Ergon Company of the United States).

[0051] Petroleum-based asphalt: 200Kg, choose No. 70 petroleum-based asphalt (or No. 90 petroleum-based asphalt);

[0052] Emulsifier weight part 20Kg, choose 18331 type emulsifier (produced by Akzo-Nobel company in the Netherlands)

[0053] Modifier weight part 30Kg, select styrene-butadiene rubber SBR modifier for use.

[0054] 550Kg of water.

[0055] The preparation process of the cementing agent for asphalt pavement: first mix the distilled oil of heavy naphthenic hydrocarbons and petroleum base asphalt to form a base oil mixture for heat preservation, and then mix the emulsifier, modifier and wat...

Embodiment 2

[0056] Embodiment two: the preparation of cementing agent for asphalt pavement:

[0057] The cementing agent for asphalt pavement of the present invention is prepared by mixing the following raw materials:

[0058] 20-40 parts of heavy naphthenic distilled oil;

[0059] 15-30 parts of petroleum base asphalt;

[0060] 1-3 parts of emulsifier;

[0061] Modifier 0-5 parts;

[0062] 40-65 parts of water.

[0063] Heavy naphthenic distillate oil: 250Kg, selected from hydrodesulfurized heavy naphthenic petroleum light distillate (produced by Ergon Company of the United States);

[0064] Petroleum base asphalt: 250Kg, choose No. 90 petroleum base asphalt;

[0065] Emulsifier weight portion 15Kg, select 18331 type emulsifier (produced by Holland Akzo-Nobel Company) for use;

[0066] Modifier weight part 45Kg, select for use: styrene-butadiene rubber SBR modifier;

[0067] Water 450Kg.

[0068] The preparation process of the cementing agent for asphalt pavement: first mix the d...

Embodiment 3

[0069] Embodiment three: the preparation of cementing agent for asphalt pavement:

[0070] The cementing agent for asphalt pavement of the present invention is prepared by mixing the following raw materials:

[0071] Heavy naphthenic distillate oil: 350Kg, selected from hydrodesulfurized heavy naphthenic petroleum light distillate (produced by Ergon Company of the United States);

[0072] Petroleum base asphalt: 100Kg, choose No. 90 petroleum base asphalt;

[0073] The weight part of emulsifier is 28Kg, select 18331 type emulsifier (produced by Holland Akzo-Nobel Company) for use;

[0074] 600Kg of water.

[0075] The preparation process of the cementing agent for asphalt pavement: first mix the distilled oil of heavy naphthenic hydrocarbons and petroleum base asphalt to form a base oil mixture for heat preservation, and then mix the emulsifier, modifier and water in proportion to prepare a soap solution. Finally, the base oil mixture and the soap are produced together throug...

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Abstract

The invention discloses a maintenance construction method of an asphalt road surface solid permeability wearing layer. The construction method includes the following steps that the spreading amount ofa solid permeability agent is surveyed; a road surface is cleaned; the road surface is pre-processed; the solid permeability agent is sprayed; a wearing layer is spread; manual trimming is carried out; preliminary maintenance is carried out. According to the maintenance construction method, the solid permeability agent is demulsified immediately after being atomized or smeared on the original road surface, heavy cycloparaffin distilled oil rapidly infiltrates to restore old asphalt performance, early diseases of the original asphalt road surface are repaired, and meanwhile a matrix asphalt and tackifier mixture is left on the road surface to form a binding layer. A solid permeability layer is formed by the repaired original asphalt road surface and the binding layer. The maintenance construction method is high in construction speed and efficiency.

Description

Technical field: [0001] The invention relates to the field of asphalt pavement maintenance, in particular to a maintenance construction method for the seepage and wear layer of the asphalt pavement. Background technique: [0002] After the asphalt pavement is built, due to the long-term effect of vehicle load, wear and natural climate, asphalt aging, performance decline, and various diseases such as cracks, potholes, ruts, looseness, water seepage, pitting, and insufficient skid resistance will gradually appear. In order to prolong the service life of asphalt pavement and improve road safety and comfort, preventive maintenance methods represented by micro-surfacing and super-sticky wear layer have been widely used at home and abroad. The above preventive maintenance methods have the functions of delaying the development of diseases, repairing ruts and improving the anti-skid performance of the original asphalt pavement, but they cannot repair and improve the asphalt aging, l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L9/06C04B26/26E01C7/18E01C7/24E01C7/26C04B111/00
CPCC04B26/26C04B2111/0075C08L95/00E01C7/182E01C7/187E01C7/24E01C7/26C04B14/14C04B14/04C04B14/28C08L9/06
Inventor 戴锋屠文杰
Owner 江苏瑞文戴尔交通科技有限公司
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