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Drainage asphalt pavement preventive maintenance material and preparation method thereof

A technology of preventive maintenance and drainage of asphalt, which is applied in the direction of building insulation materials, building components, buildings, etc., can solve the problems of flying and dropping particles, aging of asphalt, etc., and achieve the effect of reasonable matching, extended service life and good compatibility

Active Publication Date: 2018-06-01
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, drainage asphalt pavement, as a special kind of asphalt pavement - porous asphalt pavement, has many performance advantages such as drainage, anti-skid, anti-rutting, noise reduction, etc., but due to its large-pore structure, it is easy to produce asphalt The diseases of aging, flying and dropping particles are the problems that need to be dealt with urgently in the maintenance process of drainage asphalt pavement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A preventive maintenance material for drainage asphalt pavement, in parts by weight, its components are: 60 parts of asphalt base, 3 parts of modified carbon black, 4 parts of polyvinylpyrrolidone, 2 parts of asphalt emulsifier, benzene 30 parts of ethylene-butadiene-styrene block copolymer, 2 parts of crosslinking agent, 5 parts of rubber powder, and 20 parts of water; asphalt emulsifier consists of sodium ligninate, cetyltrimethylammonium bromide and Water is mixed according to the mass ratio of 1:0.7:2.

[0023] The above-mentioned modified carbon black is made of waste rubber. Under anaerobic conditions, it is pyrolyzed at a high temperature of 620°C, and heated to 52°C for 1.5h in a mixture composed of zinc oxide and 10% sodium carbonate solution. It is obtained after drying, wherein the solid-to-liquid ratio of zinc oxide and 10% sodium carbonate solution is 1g:200ml; the crosslinking agent used is sulfur and natural asphalt with a mass ratio of 1:5....

Embodiment 2

[0026] Embodiment 2: A preventive maintenance material for drainage asphalt pavement, in parts by weight, its components are: 62 parts of asphalt base, 3.5 parts of modified carbon black, 6 parts of polyvinylpyrrolidone, 3 parts of asphalt emulsifier, benzene 30 parts of ethylene-butadiene-styrene block copolymer, 3 parts of crosslinking agent, 5 parts of rubber powder, and 20 parts of water; asphalt emulsifier consists of sodium ligninate, cetyltrimethylammonium bromide and Water is mixed according to the mass ratio of 1:0.8:2.2.

[0027] The above-mentioned modified carbon black is made of waste rubber. Under anaerobic conditions, it is pyrolyzed at a high temperature of 620°C, and heated to 52°C for 1.5h in a mixture composed of zinc oxide and 10% sodium carbonate solution. It is obtained after drying, wherein the solid-to-liquid ratio of zinc oxide and 10% sodium carbonate solution is 1g:250ml; the crosslinking agent used is sulfur and natural asphalt with a mass ratio of ...

Embodiment 3

[0029] Embodiment 3: A preventive maintenance material for drainage asphalt pavement, in parts by weight, its components are: 65 parts of asphalt base, 5 parts of modified carbon black, 7 parts of polyvinylpyrrolidone, 4 parts of asphalt emulsifier, benzene 35 parts of ethylene-butadiene-styrene block copolymer, 6 parts of crosslinking agent, 5 parts of rubber powder, and 30 parts of water; asphalt emulsifier consists of sodium ligninate, cetyltrimethylammonium bromide and Water is mixed according to the mass ratio of 1:1:2.5.

[0030] The above-mentioned modified carbon black is made of waste rubber. Under anaerobic conditions, it is pyrolyzed at a high temperature of 620°C, and heated to 52°C for 1.5h in a mixture composed of zinc oxide and 10% sodium carbonate solution. It is obtained after drying, wherein the solid-to-liquid ratio of zinc oxide and 10% sodium carbonate solution is 1g:300ml; the crosslinking agent used is sulfur and natural asphalt with a mass ratio of 1:5....

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Abstract

The invention discloses a drainage asphalt pavement preventive maintenance material and a preparation method thereof. The maintenance material is prepared from the following components in parts by weight: 60 to 65 parts of asphalt matrix, 3 to 5 parts of modified carbon black, 4 to 7 parts of polyvinylpyrrolidone, 2 to 4 parts of asphalt emulsifier, 30 to 35 parts of styrene-butadiene-styrene segmented copolymer, 2 to 6 parts of crosslinking agent, 5 parts of rubber powder and 20 to 30 parts of water, wherein the asphalt emulsifier is prepared by mixing sodium lignate, hexadecyl trimethyl ammonium bromide and water in the mass ratio of 1 to (0.7-1) to (2-2.5). The drainage asphalt pavement preventive maintenance material provided by the invention has high uniformity, high stability, high tensile strength and high peeling strength, is remarkably enhanced in thermo-oxidative aging resistance and ultraviolet light aging resistance, and has a high viscoelastic characteristic and very good economic and social benefits; by using the drainage asphalt pavement preventive maintenance material, the occurrence of crack diseases and fly-off shattering diseases is avoided well, and the service life of a pavement is prolonged remarkably.

Description

technical field [0001] The invention relates to the technical field of road asphalt pavement maintenance, in particular to a drainage asphalt pavement preventive maintenance material and a preparation method thereof. Background technique [0002] At present, more than 75% of the expressways in my country are asphalt concrete pavement. After the completion of these expressways, affected by the rapid growth of traffic volume, heavy traffic, severe overloading, driving channelization and water damage, the road surface has different degrees of early damage, resulting in The maintenance task is arduous. In addition, the increase in highway mileage and the extension of use time will inevitably lead to continuous damage to the road surface, and the maintenance workload will increase. In the future, my country's expressways will change from focusing on construction to focusing on both construction and maintenance, and gradually focus on maintenance. Preventive maintenance helps to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L39/06C08L53/02C08L21/00C08L97/00C08K9/02C08K3/04C08K5/19C08K3/06
CPCC08L95/00C08L2205/035C08L39/06C08L53/02C08L21/00C08L97/005C08K9/02C08K3/04C08K5/19C08K3/06
Inventor 李振霞
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER