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High-performance modified asphalt and preparation method thereof

A modified asphalt, high-performance technology, used in building components, building insulation materials, buildings, etc., can solve the problems of incompatibility, single modification effect, side effects, etc., to reduce the difficulty of modification, slow down delamination and The speed of segregation, the effect of reducing the risk of early cracking

Active Publication Date: 2021-06-18
池州华远新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem of single modification effect and side effects in the prior art, the first object of the present invention is to provide a high-performance modified asphalt, which has the properties of combining polymer modification and natural modification The advantages of improving the compatibility between polymer modifiers and asphalt, and reducing the cost of modification

Method used

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  • High-performance modified asphalt and preparation method thereof
  • High-performance modified asphalt and preparation method thereof
  • High-performance modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-18

[0046] Examples 1-18, a high performance modified asphalt, its components and their corresponding quality as shown in Table 1, and is prepared by the following steps.

[0047] S1: Natural modification: The matrix asphalt is heated to 150 ° C, and the rock asphalt powder modifier is added while stirring, then continues to heat up to 180 ° C, stirring with a normal high-speed high-speed mixer of 4000 rpm to obtain a rocky selection asphalt;

[0048] S2: Add octylphenol polyoxyethylene ether to the rocky seamant, stirred for 15 min to obtain a rocky-modified asphalt dispersion;

[0049] S3: The temperature of the rock asphalt modified asphalt dispersion is adjusted to 180 ° C, and the rubber powder modifier is added to the dispersion, and the dimethylcycithcytic cyclic silicone is added, and the shearing machine is opened to obtain a mixed modified asphalt. ;

[0050] S4: Place the mixed modified asphalt to a temperature of 180 ° C for 1 h;

[0051] S5: Add a shrinkage agent to the m...

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Abstract

The invention discloses high-performance modified asphalt, and relates to the field of modified asphalt. According to the technical scheme main points, the high-performance modified asphalt comprises the following raw materials in parts by weight: 20-70 parts of matrix asphalt; 5 parts of dodecamethyl cyclohexasiloxane; 10 parts of a rubber powder modifier; 10-20 parts of a shrinking agent; 5 parts of alkylphenol polyoxyethylene ether; and 5-8 parts of a rock asphalt powder modifier. The preparation method comprises the following preparation steps: the advantages of natural modification and the advantages of polymer modification are combined together, so that the defects of natural modification are effectively overcome, the toughness and high-temperature and low-temperature properties of the high-performance modified asphalt are better enhanced, and the risk of early cracking is reduced.

Description

Technical field [0001] The present invention relates to the field of modified asphalt, and more particularly to a high performance modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is a common material for my country's pavement, asphalt pavement compared to cement pavement, has the advantages of driving comfort, steady and low noise, convenient maintenance, has been widely used; in recent years, 90% of my country's new high-level roads have been used asphalt Pavement structure. [0003] However, asphalt pavement is high, the pavement is easy to fly off in the high temperature season, and the low temperature season is easy to crack, so that the service level and quality of the road surface are affected; in order to improve the performance of the asphalt material, the asphalt material is usually modified. The modified asphalt refers to a bitumen binding made from an exogenous blend (modifier) ​​made of rubber, resin, polymer polymer, natural a...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L19/00C08L71/02C08K5/549C08K3/06
CPCC08L95/00C08L2205/025C08L2205/035C08L19/003C08L71/02C08K5/549C08K3/06
Inventor 陈贤俊姚俊豪
Owner 池州华远新材料有限公司
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