Synthesizing and recycling technology for waste plastic cement and recycled asphalt concrete

A technology for recycling asphalt and waste asphalt, applied in the field of asphalt concrete, waste plastic and recycled asphalt concrete synthesis and recycling, can solve problems such as affecting the use function of pavement, pavement reflection cracks, easy aging of roads, etc., achieve good elasticity and increase fluidity , the effect of low cost

Inactive Publication Date: 2015-01-07
SHAANXI MEITONG ROAD SURFACE MATERIAL SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a synthesis and recycling technology of waste plastics and recycled asphalt concrete, which makes full use of waste plastics and waste asphalt concrete, avoids waste of resources, pollutes the environment, saves costs, and at the same time solves the problem of The existing roads paved with asphalt concrete are prone to aging and reflective cracks on the road surface, and cracking, pumping, and looseness during use have seriously affected the use of the road surface.

Method used

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  • Synthesizing and recycling technology for waste plastic cement and recycled asphalt concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0025] The preparation process of waste plastic modified asphalt concrete is:

[0026] 1) Recycling waste plastics into rubber particles and recycled asphalt concrete at a mass ratio of 1:5.6 through rubber asphalt processing equipment to form rubber asphalt;

[0027] a) Rubber particles processed from waste plastics: 92% by weight of waste rubber floor particles (or waste tire particles), 4% carbon black, 2% calcium carbonate and 2% accelerator DM (chemical name : 2, 2'-dithiodibenzothiazole) mixed composition, passed through a 25 mesh sieve. The waste rubber floor particles are ethylene propylene rubber.

[0028] Table 1 Physical technical indicators of rubber particles processed from waste plastics

[0029] Pilot projects test results Required value Water content (%)0.55 less than 1 Metal particle content (%)00.05 Fiber content (%)0 less than 1 Relative density1.181.10-1.30

[0030] Table 2 Chemical technical indicators of rubber particles processed from waste plastics

[00...

Embodiment 2

[0061] It is basically the same as Example 1, except that the emulsifier uses cetyl trimethyl amine bromide. The described waste asphalt is added with 1.5% of the emulsifier, 0.2% of latex, 0.5% of asphalt oil, 0.5% of accelerator TT, and 0.3% of antioxidant D, which account for the total amount of filtered waste asphalt. And 0.3% carbon black, the above percentages are all mass percentages.

Embodiment 3

[0063] It is basically the same as Example 1, but the difference is: the emulsifier, 0.2% latex, 1% bitumen oil, 0.5% bitumen oil and 0.5% bitumen oil are added to the filtered waste bitumen. % Of accelerator TT, 0.3% of antioxidant D and 0.4% of carbon black, the above percentages are all mass percentages.

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Abstract

The invention relates to a synthesizing and recycling technology for waste plastic cements and recycled asphalt concrete. The synthesizing and recycling technology is characterized in that the waste plastic cements are recycled and made into rubber particles, and then the rubber particles are blended with the recycled asphalt concrete according to a mass ratio of 1:5.6 through the rubber asphalt processing equipment. The synthesizing and recycling technology has the advantages of making full use of the waste plastic cements and waste asphalt concrete, avoiding wasting of resources and pollution to environments, saving cost and simultaneously solving the problems that roads paved by conventional asphalt concrete are easy to age, the conventional asphalt concrete easily results in reflection cracks of road surfaces, and the using function of the road surface is seriously affected by cracking, slurry spurting, loosening and the like of the conventional asphalt concrete in a using process.

Description

Technical field [0001] The invention relates to an asphalt concrete, in particular to a synthetic recycling technology of waste plastics and recycled asphalt concrete, and belongs to the field of road construction. Background technique [0002] Asphalt concrete (English: bituminous concrete), commonly known as asphalt concrete, is manually selected with a certain gradation of mineral materials (gravel or crushed gravel, stone chips or sand, mineral powder, etc.) and a certain proportion of road asphalt materials. A mixture made under strict control conditions. Roads paved with asphalt concrete have high costs, are easy to age, and are easy to cause pavement reflection cracks. During use, cracks, slurries, and looseness occur, which seriously affect the use of the pavement. Especially in the high temperature season in summer, the structural layer that is prone to rutting on asphalt pavement is the middle surface layer. When the temperature of the asphalt pavement reaches 60℃, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/26C04B18/22
CPCY02W30/91
Inventor 李安莉赵海
Owner SHAANXI MEITONG ROAD SURFACE MATERIAL SCI & TECH
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