Cold patch for drainage asphalt pavement and preparation method thereof

A technology of drainage asphalt and cold patching material, which is applied in the field of emergency maintenance and daily maintenance of asphalt pavement, and can solve the problems of drainage, anti-skid, noise reduction and other problems that cannot meet the requirements of drainage asphalt pavement

Active Publication Date: 2020-10-20
RES INST OF HIGHWAY MINIST OF TRANSPORT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The repair and maintenance of drainage asphalt pavement is a new way of pavement repair, but the repair materials currently used cannot meet the requirements of drainage, anti-skid, noise reduction and other aspects of drainage asphalt pavement.

Method used

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  • Cold patch for drainage asphalt pavement and preparation method thereof
  • Cold patch for drainage asphalt pavement and preparation method thereof
  • Cold patch for drainage asphalt pavement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1 A kind of cold patching material for drainage asphalt pavement

[0038] This embodiment provides a kind of cold patch material for drainage asphalt pavement, which consists of the following components by weight: 90 parts of aggregate, 9 parts of emulsified asphalt, and 5 parts of water-based polyurethane emulsion; wherein,

[0039] The aggregate is basalt and meets the requirements of Table 1 above.

[0040] Described emulsified asphalt adopts following method to make:

[0041] (1) Mix water and anionic emulsifier at a ratio of 40:1.8, stir at 55-65°C, and mix to obtain a uniform emulsion;

[0042] (2) Heating the asphalt to 120-160°C;

[0043] (3) Pour the heated asphalt into the obtained homogeneous emulsion for emulsification, and the emulsification time is 2 to 5 minutes to obtain final product;

[0044] Wherein, the weight ratio of the asphalt:water:emulsifier is 50:40:1.8.

[0045] The water-based polyurethane emulsion is an emulsion of water-base...

Embodiment 2

[0055] Embodiment 2 A kind of cold patching material for drainage asphalt pavement

[0056] This embodiment provides a cold patch for drainage asphalt pavement, which consists of the following components in parts by weight: 100 parts of aggregate, 15 parts of emulsified asphalt, and 5 parts of water-based epoxy resin emulsion. Proceed as follows:

[0057] (1) The aggregate is dried for subsequent use;

[0058] (2) Mix the water-based emulsion and emulsified asphalt, stir at a temperature of 20-40°C, the number of revolutions is 2500 / min, and the time is 3 minutes to obtain modified emulsified asphalt, which is ready for use;

[0059] (3) Add the modified emulsified asphalt to the aggregate, and mix it under the temperature condition of 20-40°C for 100-200s.

[0060] Wherein, the mixing described in step (3) can be by machine mixing or manual mixing.

Embodiment 3

[0061] Embodiment 3 A kind of preparation method of cold patching material for drainage asphalt pavement

[0062] The present embodiment provides a kind of preparation method of cold patching material for drainage asphalt pavement, comprising the following steps:

[0063] (1) The aggregate is dried for subsequent use;

[0064] (2) Mix the water-based emulsion and emulsified asphalt, and mix them at a temperature of 20-40°C for 3-15 minutes to obtain modified emulsified asphalt, which is ready for use;

[0065] (3) Add modified emulsified asphalt to the aggregate, and mix under the temperature condition of 20-40°C for 45-120s.

[0066] Wherein, the mixing described in step (3) can be by machine mixing or manual mixing.

[0067] Effect verification

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Abstract

The invention relates to a cold patch material for drainage asphalt pavement and a preparation method thereof. The cold patch material for drainage asphalt pavement includes the following components by weight: 90-110 parts of aggregate, 7-20 parts of emulsified asphalt, and 0.1-20 parts of a waterborne emulsion. The cold patch material provided by the invention is simple and convenient in construction, can endow a pavement patching part with rainy day drainage, noise reduction and skid resistance functions, also has enough mechanical strength, can adapt to all traffic loads, achieves smooth and comfortable traffic, ensures the drainage asphalt pavement use quality and maximizes the economic and social benefits.

Description

technical field [0001] The invention relates to a cold patch for drainage asphalt pavement and a preparation method thereof, belonging to the technical field of daily maintenance and emergency maintenance of asphalt pavement. Background technique [0002] With the development of economy and society, people's demand for travel quality is constantly upgrading, and the concept of "safety and environmental protection" and "people-oriented" are increasingly highlighted in transportation construction. Drainage asphalt pavement with large pores has outstanding advantages such as drainage, high anti-skid performance, low noise, water mist suppression, water drift prevention, and glare reduction. It has become the best pavement form to achieve a leap in the quality of road surface characteristics, and has become one of the main trends in improving road safety functions and service quality in the future. [0003] The repair and maintenance of drainage asphalt pavement is a new way of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26
Inventor 曹东伟范勇军张艳君李明亮许斌郭宇雷
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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