Multifunctional modified asphalt

A modified asphalt, multi-functional technology, applied in the field of cementitious materials, can solve the problems such as deicing agent hazards, achieve the effect of improving asphalt performance, reducing noise and excellent performance

Inactive Publication Date: 2007-09-12
SHENYANG URBAN CONSTR ASPHALT CONCRETE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, although some improvements have been made in driving with the use of deicing agents, the harmful effects of deicing agents on the land and the environment are well known

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 4 kg of styrene-butadiene-styrene block copolymer, 96 kg of asphalt, 3 kg of urotropine, 8 kg of rubber powder (that is, waste tire rubber powder), 4 kg of styrene, isoprene 0.1 kg, 0.3 kg of linking agent, wherein the linking agent can be the product 8012 trans polyoctene rubber or trans 1,4-polybutene rubber or polybutadiene rubber sold on the market.

[0013] The preparation process is as follows: the above-mentioned materials are put into an anti-pot with a stirring device according to the proportion of parts by weight, and stirred at a high temperature.

Embodiment 2

[0015] 6 kg of styrene-butadiene-styrene block copolymer, 93 kg of asphalt, 5 kg of urotropine, 12 kg of rubber powder, 6 kg of styrene, 0.15 kg of isoprene, and 0.15 kg of linking agent.

[0016] The preparation process is as follows: the above-mentioned materials are put into an anti-pot with a stirring device according to the proportion of parts by weight, and stirred at a high temperature.

Embodiment 3

[0018] 7 kg of styrene-butadiene-styrene block copolymer, 95 kg of asphalt, 6 kg of urotropine, 9 kg of rubber powder, 7 kg of styrene, 0.2 kg of isoprene, and 0.5 kg of linking agent.

[0019] The preparation process is as follows: the above-mentioned materials are put into an anti-pot with a stirring device according to the proportion of parts by weight, and stirred at a high temperature.

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PUM

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Abstract

A material of multifunctional modified asphalt used in bridge engineers, which is characterized by the raw materials and weight ratio as follows: 4-7 of styrene-butadiene-styrene block copolymer, 90-96 of asphalt, 3-6 of Urotropine, 8-12 of gum powder, 4-7 of styrene, 0.1 -0.3 of isoprene, 0.1-0.5 of linking agent. Its preparation is: adding the above raw materials on the ratio into a reactor with stirring apparatus to mix at a high temperature. The invention makes the asphalt pavement with properties of anti-rutting, cracking resistance, noise reduce, ice broken, and can be used in regeneration, irrigation slot, cold built and others.

Description

technical field [0001] The invention relates to a cementing material used for pavement materials in road and bridge engineering, in particular to a multifunctional modified asphalt. Background technique [0002] Over the years, the development of modified asphalt has been mainly focused on solving the single problem of high-temperature stability and low-temperature crack resistance of pavement asphalt, and it is necessary to apply a certain modifier for the purpose of solving a certain problem. At present, the SBS modifier commonly used in expressway asphalt pavement can only improve both high and low temperature performances. The technical standards for modified asphalt in my country's current norms do not consider the impact of heavy loads and slow traffic, nor classify them according to the functional requirements of the pavement. Relevant parties have now realized that the indicators are relatively low, and it is necessary to refer to foreign research results for materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/3477C08L53/02C08K5/01
Inventor 王利泉
Owner SHENYANG URBAN CONSTR ASPHALT CONCRETE FACTORY
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