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A kind of waste tire desulfurization rubber and its chlorinated derivative modified asphalt composite material

A technology of discarded tires and desulfurized rubber, which is applied in solid waste management, building insulation materials, sustainable waste treatment, etc., can solve the problems of inability to melt into asphalt homogeneously, and achieve the effect of increasing added value, good affinity, and low price

Active Publication Date: 2017-11-10
程贤甦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some countries, such as Japan and the United States, have used the powder from waste tires to be directly added to asphalt for modification. Although it can increase a little elasticity, these rubber powders have not been desulfurized and still maintain the three-dimensionality formed by vulcanization of tire rubber. structure, it cannot be melted into the asphalt system homogeneously, it just acts as a filler

Method used

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  • A kind of waste tire desulfurization rubber and its chlorinated derivative modified asphalt composite material
  • A kind of waste tire desulfurization rubber and its chlorinated derivative modified asphalt composite material
  • A kind of waste tire desulfurization rubber and its chlorinated derivative modified asphalt composite material

Examples

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Effect test

Embodiment 1

[0036]Heat 300 parts of Liaohe Oilfield AH-90 bitumen and 15 parts of ethylene-vinyl acetate copolymer (EVA, the proportion of vinyl acetate is 19%) of Beijing Oil Chemical Co., Ltd. to 190 ° C, stir and mix evenly, divide into five parts and load them separately Stainless steel container, one part of asphalt is not added with waste tire devulcanized rubber and its chlorinated derivatives, and the other four parts of asphalt ethylene-vinyl acetate copolymer mixture are added with 5 parts, 10 parts, 15 parts and 20 parts of waste Tire desulfurized rubber and its chlorinated derivatives (the proportions of waste tire desulfurized rubber and desulfurized rubber chlorinated derivatives are 50% each), stir the mixed solution and heat, the heating temperature is 172 ° C, and keep stirring for 60 minutes, so that The waste tire desulfurized rubber and its chlorinated derivatives are dissolved and mixed with asphalt evenly, and then the asphalt and four parts of waste tire desulfurized...

Embodiment 2

[0040] Heat 300 parts of Shengli No. 100 asphalt to 160°C, divide it into five parts and put them into stainless steel containers, one part of the asphalt is not added with waste tire desulfurization products or chlorinated derivatives of desulfurized rubber, and the other three parts are added with 5 parts of undesulfurized Waste tire powder, 10 parts of waste tire desulfurized rubber powder, 10 parts of waste tire desulfurized rubber chlorinated derivatives; there is also a mixture of 5 parts of waste tire desulfurized rubber powder and 5 parts of waste tire desulfurized rubber chlorinated derivatives added to one part of asphalt, Stir the mixture with asphalt and heat it. The heating temperature is 175°C, and keep stirring for 60 minutes to dissolve and mix the above-mentioned modified additives and asphalt evenly. Cool to room temperature and measure its penetration according to the corresponding industry standards (JTJ036-98), Softening point (ASTMD36-26) and elongation (a...

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Abstract

The invention provides a scrap tire desulfurized rubber and chlorinated derivative thereof modified asphalt composite material and a preparation method thereof. The scrap tire desulfurized rubber and chlorinated derivative thereof modified asphalt composite material comprises the following raw materials: scrap tire desulfurized rubber, chlorinated derivative thereof, asphalt, another performance additive and a filling agent. The preparation method comprises the following steps: respectively mixing the scrap tire desulfurized rubber, the chlorinated derivative thereof, the asphalt, the other performance additive and the filling agent in a molten asphalt substrate; stirring to mix uniformly; and standing for solidifying. Scrap tire resources are fully used, shortcomings that wastes cannot be utilized effectively in the prior art, and polymer modified asphalt excessively depends on synthesis of petrochemical materials are overcome, and the using cost of the polymer modified asphalt can also be reduced; and the scrap tire desulfurized rubber and the chlorinated derivative additive thereof are selected according to a suitable ratio, part of petrochemical materials are replaced, and ageing-resistant performance of polymer asphalt products are improved. In addition, the scrap tire desulfurized rubber and chlorinated derivative thereof modified asphalt composite material is simple in technology and easy to implement; production cost can be reduced; and the competitiveness of the products is improved.

Description

technical field [0001] The invention belongs to the field of preparation of asphalt materials for roads and bridge decks, and more specifically relates to a waste tire desulfurized rubber and its chlorinated derivatives modified asphalt composite material and a preparation method. Background technique [0002] Ordinary road asphalt has poor temperature change performance, poor elasticity and aging resistance due to its own composition and structure. performance. Various countries in the world have carried out extensive research and application on modified asphalt technology, which has become a hot spot of road materials. Through the comparison and accumulation of a large number of engineering practices at home and abroad, due to the good compatibility between polymer and asphalt, the excellent performance of polymer modified asphalt has emerged. It is clearly stipulated in relevant technical specifications such as knot layer that polymer modified asphalt must be used. my ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C04B26/26C04B18/22
CPCC04B18/22C04B26/26C04B24/24C04B14/02Y02W30/91
Inventor 程贤甦
Owner 程贤甦
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