High-performance rubber asphalt for asphalt pavement and preparation method thereof

A technology of asphalt pavement and rubber asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve problems such as unmeasured sales, inconvenient storage and transportation, large manpower consumption, material and financial safety hazards, etc.

Active Publication Date: 2021-08-06
河南金欧特实业集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The storage and transportation of traditional asphalt requires special treatment, which consumes a lot of manpower, material resources, and financial res

Method used

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  • High-performance rubber asphalt for asphalt pavement and preparation method thereof
  • High-performance rubber asphalt for asphalt pavement and preparation method thereof
  • High-performance rubber asphalt for asphalt pavement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] S1. Preparation of sulfur modifier: After mixing 80g of methyldiethanolamine and 11g of stearic acid, stir and add 8g of liquid sodium hydroxide with a mass fraction of 30%, heat up to 50°C for 2-3 hours, and wait for the pH value of the reaction solution to neutrality, then add hydroxypropyl methylcellulose into the reaction liquid, keep warm for 1-2 hours, and finally add 5g of pour point depressant JN-50 and 25g of modified coconut oil alcohol ZR-08, continue to keep warm for 1 hour , cooling to obtain hydrogen sulfide inhibitor; fully mix sulfur, waste rubber powder, fly ash, hydrogen sulfide inhibitor and isoamyl acetate with a mass ratio of 100:5:8:1.5:0.5, and heat to sulfur molten state Finally, after stirring for 0.5h, pour the mixture into cooling water at a constant speed to obtain a granular finished product;

[0024] S2. After heating 55 parts of low-wax asphalt matrix with a wax content of 2% to 120°C, add 9 parts of linear SBS, 5 parts of waste rubber pow...

Embodiment 2

[0028] S1. Preparation of sulfur modifier: After mixing 120 g of methyldiethanolamine and 18 g of stearic acid, stir and add 10 g of liquid sodium hydroxide with a mass fraction of 30%, heat up to 90° C. and react for 3 to 5 hours. to neutrality, then add hydroxypropyl methylcellulose into the reaction solution, keep warm for 1-2 hours, and finally add 12g of pour point depressant JN-50 and 38g of modified coconut oil alcohol ZR-08, and continue to keep warm for 2 hours , cooling to obtain hydrogen sulfide inhibitor; fully mix sulfur, waste rubber powder, fly ash, hydrogen sulfide inhibitor and isoamyl acetate with a mass ratio of 100:15:12:3:2, and heat to sulfur molten state Finally, after stirring for 2 hours, pour the mixture into cooling water at a constant speed to obtain a granular finished product;

[0029] S2. After heating 75 parts of low-wax asphalt matrix with a wax content of 5% to 140°C, add 16 parts of star-shaped SBS, 12 parts of waste rubber powder and 8 parts...

Embodiment 3

[0033] S1. Preparation of sulfur modifier: After mixing 100 g of methyldiethanolamine and 15 g of stearic acid, stir and add 15 g of liquid sodium hydroxide with a mass fraction of 30%, heat up to 60° C. and react for 3 to 5 hours. to neutrality, then add hydroxypropyl methylcellulose into the reaction solution, keep warm for 1-2 hours, and finally add 20g of pour point depressant JN-50 and 65g of modified coconut oil alcohol ZR-08, and continue to keep warm for 2 hours , cooling to obtain hydrogen sulfide inhibitor; fully mix sulfur, waste rubber powder, fly ash, hydrogen sulfide inhibitor and isoamyl acetate with a mass ratio of 100:12:10:2:1, and heat to sulfur molten state Finally, after stirring for 2 hours, pour the mixture into cooling water at a constant speed to obtain a granular finished product;

[0034] S2. After heating 65 parts of low-wax asphalt matrix with a wax content of 4% to 130°C, add 12 parts of linear SBS, 8 parts of waste rubber powder and 10 parts of L...

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Abstract

The invention relates to the technical field of petrochemical engineering, in particular to high-performance rubber asphalt for an asphalt pavement and a preparation method thereof, and the high-performance rubber asphalt comprises the following raw material components: a low-wax asphalt matrix, SBS, a polyolefin modifier, waste rubber powder, diatomite and a sulfur modifier. Compared with the prior art, various modifiers are added into an asphalt matrix with low wax content, so that the comprehensive performance of the asphalt is greatly improved, the high-temperature storage stability, the high and low temperature performance, the aging performance, the viscoelasticity and the viscosity and toughness are obviously improved, and the use requirements of alpine regions or high-temperature regions are met.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to high-performance rubber asphalt for asphalt pavement and a preparation method thereof. Background technique [0002] my country's highway construction industry is developing rapidly. As an important pavement material, asphalt is widely used in road surface paving due to its excellent waterproof, cohesive and anti-corrosion properties. However, it will show different viscous, brittle and aging phenomena under high temperature, low temperature and ultraviolet radiation, so it needs to be modified to improve the performance of pavement anti-rutting, anti-fatigue, anti-aging and anti-cracking at low temperature. According to different regional environments and demands, it is necessary to improve one or more properties of asphalt mixture. The storage and transportation of traditional asphalt requires special treatment, which consumes a lot of manpower, material resources, and ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L19/00C08L23/06C08L23/12C08L1/28C08K7/26C08K3/06
CPCC08L95/00C08L2205/035C08L2201/08C08L53/02C08L19/003C08L23/06C08L23/12C08L1/284C08K7/26C08K3/06
Inventor 杨兴旺夏俊杰宋俊伟付威李军克杨建伟李程北魏志阳杨留勇刘新伟张国栋宋蕊蕊孙国栋王俊丽王景林
Owner 河南金欧特实业集团股份有限公司
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