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A kind of high-performance modified asphalt and its preparation method

A modified asphalt, high-performance technology, used in building components, building insulation materials, buildings, etc., can solve the problems of incompatibility, side effects, and single modification effect, so as to reduce the difficulty of modification and reduce early cracking. Risk, effect of slowing down the rate of stratification and segregation

Active Publication Date: 2022-05-10
池州华远新材料有限公司
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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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  • A kind of high-performance modified asphalt and its preparation method
  • A kind of high-performance modified asphalt and its preparation method
  • A kind of high-performance modified asphalt and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1-18

[0044] Examples 1-18, a high-performance modified asphalt, its components and corresponding quality are shown in Table 1, and prepared by the following steps.

[0045] S1: Natural modification: heat base asphalt to 150°C, add rock asphalt powder modifier while stirring, then continue to heat up to 180°C, and fully stir for 60 minutes with an ordinary high-speed mixer at 4000 rpm to obtain rock asphalt modification asphalt;

[0046] S2: Add octylphenol polyoxyethylene ether to rock pitch modified asphalt, and stir for 15 minutes to obtain rock pitch modified asphalt dispersion;

[0047] S3: Adjust the temperature of rock asphalt modified asphalt dispersion to 180°C, quickly add rubber powder modifier to the dispersion, add dodecamethylcyclosiloxane at the same time, turn on the shearing machine, and obtain mixed modified asphalt ;

[0048] S4: Put the mixed modified asphalt in an environment with a temperature of 180°C for 1 hour;

[0049] S5: Add a shrinking agent to the mi...

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Abstract

The invention discloses a high-performance modified asphalt, which relates to the field of modified asphalt. The key point of the technical scheme is that the high-performance modified asphalt contains the following raw materials in parts by weight: base asphalt: 20-70 parts; Cyclohexasiloxane: 5 parts; rubber powder modifier: 10 parts; shrinking agent: 10-20 parts; alkylphenol polyoxyethylene ether: 5 parts; rock asphalt powder modifier: 5-8 parts ; Contains the following preparation steps: The technical effect is to combine the advantages of natural modification and polymer modification, effectively make up for the deficiency of natural modification, and better strengthen the toughness and high temperature and low temperature of high-performance modified asphalt Resistant, reducing the risk of early cracking.

Description

technical field [0001] The invention relates to the field of modified asphalt, in particular to a high-performance modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is a commonly used material for pavement construction in my country. Compared with cement pavement, asphalt pavement has the advantages of comfortable driving, stable and low noise, and convenient maintenance. Pavement structure type. [0003] However, the wax content of asphalt pavement is high, and the pavement is prone to oil in high-temperature seasons and cracks in low-temperature seasons, which affects the service level and quality of use of the pavement; in order to improve the performance of asphalt materials, asphalt materials are usually modified. The so-called modified asphalt refers to "asphalt binder made by adding rubber, resin, high molecular polymer, natural asphalt, ground rubber powder, or other materials such as external additives (modifiers), so that asph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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