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Method for preparing modified asphalt by using waste plastics

A technology of waste plastics and modified asphalt, applied in building thermal insulation materials, building components, construction and other directions, can solve the problems of expensive modified asphalt, high price, increased investment in pavement engineering, etc., to reduce rutting and lower prices. , the effect of improving high temperature stability

Inactive Publication Date: 2008-07-23
杨锡武 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The modified asphalt currently used is mostly chemical products and the price is high, and the price of the modified asphalt is also relatively expensive, which increases the investment in pavement engineering

Method used

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  • Method for preparing modified asphalt by using waste plastics

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Embodiment Construction

[0021] According to the characteristics of complex components of waste plastics and the technical requirements for the high-temperature stability of asphalt and asphalt mixture on road surfaces, the present invention makes waste plastics into waste plastic modifiers, and then uses the waste plastic modifiers to make waste plastics modified Sexual asphalt.

[0022] A method for making modified asphalt with waste plastics, the technical scheme of which is:

[0023] (1) Collection and crushing of waste plastics: The types of waste plastics collected include plastic films, various household plastic bags, plastic products (plastic barrels, plastic basins, plastic stools), and various woven bags. For the convenience of collection and cleaning, first Sorting and collecting, cleaning after collection, dehydration and crushing;

[0024] (2) Waste plastic granulation: the method is to heat the crushed waste plastic to about 200°C, melt it for 30-45 minutes, cool it, and process it into...

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Abstract

The invention discloses a method for making modified asphalt using waste plastics, comprising the following process steps: 1) various waste plastics are collected, sorted, washed and then dehydrated and grinded; 2) the grinded waste plastics are melted by heating up, and then processed into waste plastic grains after cooling; 3) the waste plastic grains are liquefied by high temperature heating and then cooled, the waste plastic modifying agent is obtained; 4) base asphalt is healed to be softened, then the waste plastic modifying agent obtained during step 3) and the base asphalt are melted to be immixed; 5) the mixture obtained during the step 4) is melted to expanded and sheared, the manufacture of the modified asphalt is finished; the method for making modified asphalt using waste plastics has the advantages that: the soften point of the asphalt is increased ten to fifteen DEG C, the price is low, the waste domestic plastic products are changed into valuables, and has the advantages of good technical performances and low price and other economic technique characterizes.

Description

technical field [0001] The invention relates to a method for making modified asphalt, in particular to a method for making modified asphalt with waste plastics. Background technique [0002] Various plastic products produced as petroleum products include daily life plastic bags, food packaging bags, cement, fertilizer packaging bags, agricultural film, plastic basins (barrels, stools) and other plastic products. Due to their large output, low cost and easy production, people Generally, it is not used repeatedly, but is discarded as garbage after use, making it a disposable consumer product and becoming "white pollution". The discarding of waste plastics not only affects the environment, causing environmental pollution problems, but also a huge waste of petroleum resources. [0003] At present, the asphalt pavement of quite a few expressways and other grades of roads will produce a large number of rutting deformation and damage after three to five years, which is far from rea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L101/00C08J3/20
Inventor 杨锡武曾顺友
Owner 杨锡武
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