Method for preparing modified asphalt mixture using waste and old tyre and hybrid method

A technology of waste tires and modified asphalt, which is used in building thermal insulation materials, on-site coagulation pavement, building components, etc., to achieve environmental protection engineering benefits, reduce road traffic noise, and prolong service life.
CN1807514AInactive Publication Date: 2006-07-26TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2006-07-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to the field of engineering material technical, and it is specificly related to the method for preparing a kind of modified bituminous mixture with worn tyre. It is made as follows: mill worn tyre to powder, mix the owder with base bitumen and agitate to get rubber bitumen; gap-graded aggregate, screen the aggregates and get coarse, fine aggregates; mix rubber particles with the coarse and fine aggregates, agitate, then add rubber bitumen and agitate, lastly add powdered ore and mix to get needed production. This invention blends dry and wet processes together to exert each advantage sufficiently, and attained both the aims of consumping much worn tyre and improve pavement performance. With this invention, we can greatly improve high and low temperature behavior of bitumen and its mixture, we can longer pavement life and abate environmental pollution. The pavement paved by this mixture has the behavior of lowering traffic noise. Popularization of this achievement is economic, society, environmental and engineering benefit.
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Description

technical field

[0001] The invention belongs to the technical field of road engineering materials, and in particular relates to a method for preparing modified asphalt mixture by using waste tires through a mixing method. Background technique

[0002] With the rapid development of my country's automobile industry and the improvement of people's living standards, the number of automobiles has increased rapidly year by year, and our country will face the problem of dealing with a large number of waste tires. According to statistics, the number of waste tires in my country reached 80 million in 2002, increasing at an annual rate of 12%. By 2005, it will reach 120 million. Such large-scale waste tires will bring huge environmental pressure to society. Therefore, it is imminent to find a way out for waste tires.

[0003] At present, the main ways to dispose of waste tires in the world are stacking (or landfill), burning and recycling. Among them, the application of waste rubbe...

Claims

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