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Anti-rut agent for asphalt pavements and preparation method thereof

A technology of anti-rutting agent and asphalt pavement, which is applied in the field of anti-rutting agent admixture and its preparation, can solve problems affecting driving comfort and safety, reduce economic benefits and social benefits, etc., and achieve enhanced anti-stripping performance, particle size The effect of reducing the diameter and improving the anti-rutting performance

Inactive Publication Date: 2010-05-12
TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only affects the comfort and safety of driving, but also reduces the economic and social benefits, so the prevention and treatment of rutting disease is the primary issue in today's road construction

Method used

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0018] The preparation method of granular asphalt mixture anti-rutting admixture of the present invention is as follows:

[0019] Mix polyethylene, polymethyl methacrylate and petroleum asphalt according to the weight percentage: polyethylene 80-90, petroleum asphalt 5-10, polymethyl methacrylate 5-10; Heating and stirring in the environment for 1.5 to 2.5 hours, especially 2 hours; followed by granulation by flat twin-screw extruder granulator (into solid particles of 50 to 500um, which is the product of the present invention. Wherein polyethylene is selected from The molecular weight is 200,000 to 400,000, the penetration of petroleum asphalt is 25 to 35, and the molecular weight of polymethyl methacrylate is 80,000 to 120,000. In addition, PP (polypropylene), PVC (polypropylene) can also be used. Vinyl chloride) and other materials instead ...

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Abstract

The invention discloses an anti-rut agent for asphalt pavements and a preparation method thereof. The method comprises the steps of: mixing 5 to 10 weight percent of petroleum asphalt, 5 to 10 weight percent of polymethylmethacrylate and 80 to 90 weight percent of polymer with a long flexible chain;, heating and stirring the mixture at the temperature of between 125 and 180 DEG C for 1.5 to 2.5 hours; and further granulating the mixture to obtain solid particles of the anti-rut agent with the diameter of between 50 and 500mu m. The anti-rut agent improves the anti-rut performance of the asphalt pavements; the adopted polymethylmethacrylate remarkably improves the waterproof ability and low-temperature cracking performance of the asphalt pavements; and through the optimization of production technology and the reduction of particle size of the particles, the anti-rut agent improves the adhesiveness between an aggregate and asphalt, reduces the gap between the aggregate and the asphalt, and strengthens the anti-stripping performance of an asphalt mixture.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an anti-rutting agent admixture for asphalt pavement and a preparation method thereof. Background technique [0002] In 1989, the Shanghai-Jiading Expressway was completed and opened to traffic, ending the history of no expressways in mainland China; in 1990, the Shenzhou-Dalian Expressway, known as the "No. 1 Road in China", was completed and opened to traffic, marking the development of expressways in my country. new era. By the end of 2005, the total mileage of expressways in China was 410,000 kilometers, ranking second in the world. [0003] When looking back on the great achievements of expressway construction in our country in the past ten years, we must also see that the asphalt pavement of the expressway that has been built and opened to traffic has premature damage and early damage. Among all diseases, rutting is especially common and the most seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/36
Inventor 王光成陈明波王维
Owner TONGJI UNIV
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