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Modified asphalt composition with excellent high and low temperature performance and preparation method thereof

A modified asphalt, high and low temperature technology, applied in building structures, building insulation materials, building components, etc., can solve the problem of high price of modifiers, achieve high softening point, good construction workability, and relieve road rutting in summer Effect

Active Publication Date: 2020-04-03
SINOCHEM QUANZHOU ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that there are a wide variety of modifiers involved, and the price of some modifiers is relatively high

Method used

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  • Modified asphalt composition with excellent high and low temperature performance and preparation method thereof
  • Modified asphalt composition with excellent high and low temperature performance and preparation method thereof
  • Modified asphalt composition with excellent high and low temperature performance and preparation method thereof

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Effect test

Embodiment 1

[0028] (1) A modified asphalt is composed of the following components in parts by mass: 87.56 parts of No. 70 base asphalt, 0.24 parts of stabilizer, 4.2 parts of linear SBS, 1.7 parts of naphthenic oil, 0.6 parts of mineral oil, and 4.8 parts of aromatic oil part, 0.35 part of amorphous silica-alumina, and 0.57 part of talcum powder.

[0029] (2) The production process of the modified asphalt is as follows: first, heat No. 70 base asphalt to 135°C; add the weighed naphthenic oil, mineral oil, and aromatic oil to No. 70 base in sequence at intervals of 5 minutes under high-speed stirring conditions asphalt. Thereafter, the measured and weighed amorphous silica-alumina and talcum powder were sequentially added to the above-mentioned asphalt at intervals of 10 minutes. The speed of the high-speed mixer is 800r / min; then the asphalt temperature is controlled at 175°C, the measured SBS particles are added, and a high-speed shear is used for high-speed shearing, and the shearer sp...

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Abstract

The invention belongs to the technical field of modified asphalt, and particularly relates to a modified asphalt composition with excellent high and low temperature performance and a preparation method thereof. The modified asphalt composition with excellent high / low temperature performance is prepared from the following raw materials in parts by weight: 70-96 parts of asphalt, 3.0-7.0 parts of alinear or star-shaped SBS modifier, 0.1-1.0 part of a stabilizer, 0.15-4.3 parts of naphthenic oil, 0.05-4.0 parts of mineral oil, 0.1-6.0 parts of aromatic oil, 0.1 to 1.0 part of amorphous silica-alumina and 0.1 to 1.0 part of talcum powder. The prepared modified asphalt has the advantages of high ductility, high softening point, storage stability, high elasticity and the like, and can fully meet the use requirements of engineering construction of high-grade highways and the like in high-temperature areas in summer and low-temperature areas in winter.

Description

technical field [0001] The invention belongs to the technical field of modified asphalt, and in particular relates to a modified asphalt composition with excellent high and low temperature performance and a preparation method thereof. Background technique [0002] In some relatively high-altitude mountainous or plateau areas such as subtropical or temperate zones, the summer is hot and rainy and the winter temperature can be as low as below zero degrees Celsius, and there will be freezing rain or snowfall. The construction of expressways and other projects in such areas needs to be considered at the same time. High and low temperature performance of asphalt pavement. The development of modified asphalt with good high and low temperature performance is of great practical significance to meet the requirements of highway pavement in complex climate areas or the pavement use requirements of some special high-grade road sections. [0003] In order to improve the cracking and def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/00C08K13/04C08K7/26C08K3/34C08K3/06C08K5/39
CPCC08L95/00C08L2201/08C08L2205/025C08L2205/035C08L53/02C08L91/00C08K13/04C08K7/26C08K3/34C08K3/06C08K5/39
Inventor 孙杰黄谋进曾志杰
Owner SINOCHEM QUANZHOU ENERGY TECH CO LTD
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