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Modified asphalt and preparation method thereof

A technology of modified asphalt and asphalt, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of short service life and high temperature sensitivity, and achieve the goals of prolonging service life, improving stability and improving high temperature resistance Effect

Inactive Publication Date: 2018-10-23
安徽虹达道路桥梁工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defects of high temperature sensitivity and short service life in the prior art, and provide a modified asphalt and its preparation method to solve the above problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The invention discloses a modified asphalt, which is prepared from the following components according to the mass percentage: 150 parts of asphalt, 40 parts of rubber powder, 70 parts of artificial sand, 40 parts of mica powder, 30 parts of fiber powder, and a silane coupling agent 6 parts, 4 parts of stabilizer, 6 parts of high temperature resistant additive, 15 parts of ultraviolet absorber.

[0023] The fiber powder is basalt fiber powder, the stabilizer is N,N'-diphenyl-p-phenylenediamine, the high temperature resistance additive is mineral oil, and the ultraviolet absorber is 2,4 - Dihydroxybenzophenone.

[0024] The invention also discloses a preparation method of the above modified asphalt, the steps are as follows: heat the asphalt to 150°C, then add rubber powder, artificial sand, mica powder, fiber powder, 10 parts of silane coupling agent, stir for 15 minutes, Finally, a stabilizer, a high-temperature-resistant additive, and an ultraviolet absorber are added...

Embodiment 2

[0026] The invention discloses a modified asphalt, which is prepared from the following components according to mass percentage: 100 parts of asphalt, 30 parts of rubber powder, 80 parts of artificial sand, 30 parts of mica powder, 40 parts of fiber powder and silane coupling agent 5 parts, 6 parts of stabilizer, 3 parts of high temperature resistant additive, 20 parts of ultraviolet absorber.

[0027] The fiber powder is carbon fiber powder, the stabilizer is N-phenyl-N'-isopropyl-p-phenylenediamine, the high temperature resistant additive is titanium dioxide, and the ultraviolet absorber is 2 , 4-Dihydroxybenzophenone.

[0028] The invention also discloses a preparation method of the above-mentioned modified asphalt. The steps are as follows: heat the asphalt to 185°C, then add rubber powder, artificial sand, mica powder, fiber powder, and silane coupling agent, stir for 15 minutes, and finally add The stabilizer, the high temperature resistant additive and the ultraviolet ...

Embodiment 3

[0030] The invention discloses a modified asphalt, which is prepared from the following components according to mass percentage: 200 parts of asphalt, 50 parts of rubber powder, 50 parts of artificial sand, 50 parts of mica powder, 20 parts of fiber powder and silane coupling agent 10 parts, 2 parts of stabilizer, 9 parts of high temperature resistance additive, 10 parts of ultraviolet absorber.

[0031] The fiber powder is glass fiber powder, the stabilizer is N,N'-diphenyl-p-phenylenediamine, the high temperature resistance additive is titanium dioxide, and the ultraviolet absorber is 2-hydroxy- 4-n-Octyloxybenzophenone.

[0032] The invention also discloses a preparation method of the above-mentioned modified asphalt. The steps are as follows: heat the asphalt to 175°C, then add rubber powder, artificial sand, mica powder, fiber powder, and silane coupling agent, stir for 10 minutes, and finally add Stabilizer, high temperature resistant additive and ultraviolet absorber a...

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Abstract

The invention discloses modified asphalt and a preparation method thereof. The modified asphalt includes, by mass, 100-200 parts of asphalt, 30-50 parts of rubber powder, 50-80 parts of artificial sand, 30-50 parts of mica powder, 20-40 parts of fiber powder, 5-10 parts of a silane coupling agent, 2-6 parts of a stabilizing agent, 3-9 parts of a high temperature resistant additive, and 10-20 partsof an ultraviolet absorber. The preparation method includes the steps of: heating the asphalt to 175-185 DEG C, adding the rubber powder, artificial sand, mica powder, fiber powder and silane coupling agent, stirring the mixture for 10-20 min; finally adding the stabilizing agent, high temperature resistant additive and ultraviolet absorber, and stirring the mixture for 10-20 min at 175-185 DEG Cto obtain the product. The modified asphalt has excellent high temperature resistance and long service life.

Description

technical field [0001] The invention relates to the field of asphalt, in particular to a modified asphalt and a preparation method thereof. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt is a waterproof, moisture-proof and anti-corrosion organic gelling material. Pitch can be mainly divided into three types: coal tar pitch, petroleum pitch and natural pitch: wherein, coal tar pitch is a by-product of coking. Petroleum asphalt is the residue after distillation of crude oil. Natural bitumen is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [0003] At present, the existing asphalt is mainly t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L91/00C08K3/34C08K7/10C08K5/18C08K5/132C08K13/04
CPCC08L95/00C08L2201/02C08L2201/08C08L2205/03C08L21/00C08L91/00C08K3/34C08K7/10C08K5/18C08K5/132C08K13/04
Inventor 席绪荣
Owner 安徽虹达道路桥梁工程有限公司
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