Color asphalt ultrathin wearing layer and preparation method thereof

A technology of colored asphalt and wear layer, applied in the field of highway pavement construction, can solve problems such as easy falling off and rolling, and achieve the effect of reducing thickness, low cost and improving driving conditions

Active Publication Date: 2010-12-29
广州新粤交通技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the current hot mix asphalt mixture, the thickness of 3-4cm is the lower limit of the design, and it is difficult to further reduce the thickness, because the thickness of the structural layer is too thin to form an effective whole, which may cause excessive temperature drop during construction. It is too fast to carry out timely and effective rolling, and it is easy to fall off after opening to traffic.

Method used

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  • Color asphalt ultrathin wearing layer and preparation method thereof
  • Color asphalt ultrathin wearing layer and preparation method thereof
  • Color asphalt ultrathin wearing layer and preparation method thereof

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Embodiment Construction

[0024] The colored asphalt ultra-thin wear layer of the present invention is prepared from the following raw materials in parts by weight:

[0025] 5-10mm gravel: 34 to 36 parts;

[0026] Stone chips with particle size less than 3mm: 11 to 13 parts;

[0027] Mineral powder or cement: 0.8 to 1.2 parts;

[0028] Colored asphalt: 2 to 3 parts;

[0029] Polymer modified emulsified asphalt: 1.1 to 1.4 parts.

[0030] The specific technical requirements and preparation methods are as follows:

[0031] 1. Material index requirements

[0032] The raw material of colored asphalt ultra-thin wear layer is composed of 5-10mm crushed stone as coarse aggregate, stone chips with a particle size of less than 3mm as fine aggregate, mineral powder or cement as filler, polymer modified emulsified asphalt, and colored asphalt. The specific materials The indicator requirements are as follows:

[0033] 1. Aggregate Grading Requirements

[0034] The ultra-thin wearing layer of colored asphalt...

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Abstract

The invention discloses a color asphalt ultrathin wearing layer and a preparation method thereof. The preparation method mainly comprises the following steps of: producing a mixed material: mixing 34-36 parts of 5-10 mm macadam, 11-13 parts of stone chips with a grain size less than 3 mm and 0.8-1.2 parts of mineral powder or cement, then adding 2-3 parts of color asphalt and mixing to obtain a color asphalt mixed material; paving: firstly spraying a layer of polymerized, modified and emulsified asphalt on the lower bearing layer of a road surface by the spraying system of an asphalt paver and then uniformly paving the color asphalt mixed material on a road by the spiral distributor of the asphalt paver; and statically rolling by using a double-steel wheel road roller and forming the road surface. The color asphalt ultrathin wearing layer obtained by using the method has relatively high use value, simple construction method, easy maintenance and low manufacturing cost and can meet the requirements of the color road surface.

Description

technical field [0001] The invention relates to an ultra-thin wearing layer of colored asphalt pavement and a preparation method thereof, is a relatively economical construction scheme of colored asphalt pavement that can obviously improve traffic conditions, and belongs to the technical field of highway pavement construction. Background technique [0002] Colored asphalt pavement has the functions of obviously beautifying the road environment, better coordinating with the surrounding architectural art, beautifying the city, inducing traffic, improving road traffic safety, and greatly improving the monotony of ordinary black pavement, so it is becoming more and more It is widely used in areas such as new roads, squares, and traffic guidance sections of high-grade highways in iconic cities, so as to reflect the characteristics and styles of a country or a city. At present, colored asphalt pavement has been built in various degrees in various parts of our country. [0003] Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/35
Inventor 刘先淼刘宜聪李向阳刘学
Owner 广州新粤交通技术有限公司
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