High-strength modified asphalt and preparation method thereof

A technology for modifying asphalt and polymer modifiers, which is applied in building components, building insulation materials, buildings, etc., and can solve the problem of strict mixing temperature requirements for asphalt mixtures, unfavorable long-term production and product storage, and easy pollution of pipelines and siltation. tank bottom and other problems, to achieve the effect of improving high temperature performance and low temperature performance, stable storage and easy production
CN112608607AActive Publication Date: 2021-04-06JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
Publication Date
2021-04-06

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Abstract

The invention relates to high-strength modified asphalt and a preparation method thereof. The high-strength modified asphalt comprises the following components in parts by weight: 40-90 parts of 70# matrix asphalt, 5-9 parts of a polymer modifier, 15-35 parts of a composite anti-rut aid, 0.5-1.5 parts of an antioxidant, 3-7 parts of an organic viscosity reducer and 0.2-0.4 part of a stabilizer. Different from existing single rock asphalt modification with a large mixing amount, composite modification has the characteristics that on the premise of reducing the mixing amount of rock asphalt, other materials such as petroleum resin are used for compounding or replacing rock asphalt to improve the high-temperature performance of asphalt, and on the premise of guaranteeing the high-temperature performance of asphalt, the modified asphalt is stable in storage and not prone to depositing at the bottom of a tank or polluting a production pipeline, and the asphalt production quality is guaranteed.
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Description

technical field

[0001] The invention relates to modified asphalt for road and bridge pavement, in particular to high-strength modified asphalt and a specific preparation method thereof. Background technique

[0002] One of the main damage forms of expressways is road surface damage. Among the main diseases of asphalt pavement, rutting is especially common, and the damage to the road surface is also the most serious, which greatly increases the repair cost of the road surface. The rutting problem usually occurs in the high temperature period of the first summer. Some road ruts have a depth of 10-50mm, or even more than 100mm, which makes the road evenness worse, and symptoms such as network cracks, potholes, and pits will soon appear. . And as the temperature rises and the axle load of the road surface increases, the ordinary modified asphalt concrete pavement can meet the requirements for the general load traffic section, but for some special road sections such as heavy lan...

Claims

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