Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of high-aging-resistance rubber asphalt

A rubber asphalt, high-resistance technology, applied to building components, building insulation materials, buildings, etc., can solve the problems of waste tires that are difficult to degrade, mosquitoes spread diseases, occupy large land, etc., to improve low-temperature crack resistance and not easy to freeze , good weather resistance

Inactive Publication Date: 2015-06-03
大连轮胎有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scrap tires are difficult to degrade under natural conditions. Long-term open-air stacking not only takes up a lot of land, but also easily breeds mosquitoes, spreads diseases and causes fires.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of high anti-aging rubber asphalt comprises the following steps:

[0018] ①Wash the waste rubber, dry it naturally, and remove metal and fiber debris after preliminary crushing;

[0019] ②Crush the waste rubber after the above pretreatment into rubber powder, add ferrous sulfate, and activate it at 130°C for 3 hours; the amount of ferrous sulfate added is 0.1% of the mass of rubber powder;

[0020] ③Add the asphalt matrix preheated to 180°C to the product of step ②, then add the rubber regeneration reducing agent PTC-R and the antioxidant pentaerythritol dioctadecyl phosphite, mix in an open mill, and react at 200°C for 3 hours. Obtain high anti-aging rubber asphalt; the addition amount of asphalt matrix is ​​3 times of rubber powder quality, the addition amount of rubber regeneration reducing agent PTC-R is 0.5% of rubber powder quality, the antioxidant pentaerythritol dioctadecyl phosphite The amount added is 0.5% of the rubber powder mass.

Embodiment 2

[0022] The preparation method of high anti-aging rubber asphalt comprises the following steps:

[0023] ①Wash the waste rubber, dry it naturally, and remove metal and fiber debris after preliminary crushing;

[0024] ②Crush the waste rubber after the above pretreatment into rubber powder, add ferrous nitrate, and activate it at 130°C for 3 hours; the amount of ferrous sulfate added is 0.5% of the mass of rubber powder;

[0025] ③Add the asphalt matrix preheated to 180°C to the product of step ②, and then add the rubber regeneration reducing agent PTC-R and the antioxidant 1,3,5-trimethyl-2,4,6-tri(3,5 -Di-tert-butyl-4-hydroxybenzyl)benzene, mixed in an open mill, and reacted at 200°C for 5 hours to obtain high anti-aging rubber asphalt; the amount of asphalt matrix added was 5 times the mass of rubber powder, and the rubber was regenerated and reduced The addition amount of the agent PTC-R is 1% of the rubber powder mass, and the antioxidant 1,3,5-trimethyl-2,4,6-tris(3,5-di-...

Embodiment 3

[0027] The preparation method of high anti-aging rubber asphalt comprises the following steps:

[0028] ①Wash the waste rubber, dry it naturally, and remove metal and fiber debris after preliminary crushing;

[0029] ②Crush the waste rubber after the above pretreatment into rubber powder, add ferrous nitrate, and activate at 130°C for 3 hours; the amount of ferrous sulfate added is 0.3% of the mass of rubber powder;

[0030] ③Add the asphalt matrix preheated to 180°C to the product of step ②, and then add the rubber regeneration reducing agent PTC-R and the antioxidant 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid n- Stearyl alcohol esters were mixed in an open mill and reacted at 200°C for 4 hours to obtain high anti-aging rubber asphalt; the amount of asphalt matrix added was 4 times the mass of rubber powder, and the amount of rubber regeneration reducing agent PTC-R added was 0.8% of the rubber powder mass, and the addition of antioxidant 3-(3,5-di-tert-butyl-4-hydr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a preparation method of high-aging-resistance rubber asphalt, which comprises the following steps: pulverizing pretreated waste rubber into rubber powder, adding ferrite, and activating at 130 DEG C for 3 hours; adding an asphalt matrix which is preheated to 180 DEG C, adding a rubber regeneration reducer and an antioxidant, compounding in an open mill, and reacting at 200 DEG C for 3-5 hours to obtain the high-aging-resistance rubber asphalt. The pavement laid by the high-aging-resistance rubber asphalt has the advantages of higher durability, fewer cracks and better weather resistance than the common asphalt pavement, and can not be easily iced in severe cold weather.

Description

technical field [0001] The invention belongs to the technical field of resource recycling and asphalt materials, and in particular relates to a method for producing asphalt by using waste rubber. Background technique [0002] Since the reform and opening up, my country's road construction has made remarkable achievements. Not only the total mileage of highways has increased year by year, but also the quality of highway construction has been significantly improved with the continuous improvement of technical grades and pavement grades of highways. In particular, a complete set of technology has been formed in the construction of asphalt pavements for expressways, and the level of design and construction technology is average. There is obvious improvement, and the overall quality and performance of most road surfaces are good. However, the actual quality of my country's highways still has problems that cannot be ignored. As far as asphalt pavement is concerned, roads general...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08K3/30C08K3/28C08K3/16C08K5/134C08K5/13C08K5/524
Inventor 付兴铎高阳
Owner 大连轮胎有限公司