Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture

An asphalt modifier and asphalt mixture technology, applied in the field of asphalt modifiers, can solve the problems of increased rutting, inability to fully meet road requirements, segregation, etc., to reduce energy consumption and loss, avoid poor storage stability, construction simple craftsmanship

Active Publication Date: 2008-04-23
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0053] In addition, there are modification methods such as polymers, fibers, and rubber powder; the limitations of traditional technologies: the addition amount is limited to 4-5%, which cannot fully meet the requirements of road use; in addition, technical problems require cumbersome swelling, colloid, etc. Grinding for high-speed shear processing, segregation and other problems during storage
Some roads were severely damaged 1-2 years after they were built and used. Some road sections were damaged in a large area in the year they were opened to traffic, far short of the design life.
Second, the damage rang

Method used

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  • Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture
  • Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture
  • Traffic anti-track asphalt modifier and its modified asphalt and asphalt mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0104] Weigh SBS, 50 parts; SIS, 50 parts; SEBS, 50 parts; SEPS, 50 parts; lignin fiber, 30 parts; PE, 5 parts. First heat the thermoelastomer to 40°C; add lignocellulose and polyolefin to the thermoelastomer under the condition of 20 min / rev, mix well; then raise the temperature of the mixture to 80°C within 10min, and then raise the temperature within 15min to 150°C, and finally raised to 200°C within 5 minutes; the mixture was cooled, extruded and packed into barrels to obtain the finished product.

Embodiment 2

[0106] Weigh SBS, 20 parts; lignin fiber, 45 parts; PE, 300 parts; POE, 100 parts; LCDPE, 100 parts; EVA, 50 parts. Preparation process, condition are the same as embodiment 1.

Embodiment 3

[0108] Weigh SIS, 30 parts; SEBS, 80 parts; SEPS, 10 parts; lignin fiber, 60 parts; PE, 50 parts; HDPE, 100 parts; PP, 300 parts; PE, 200 parts; LDPE, 200 parts. Preparation process, condition are the same as embodiment 1.

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Abstract

The present invention discloses one kind of rut resisting road asphalt modifier, and its modified asphalt and asphalt mixture material. The rut resisting road asphalt modifier consists of thermoplastic elastomer of vinyl arene-conjugated diene block copolymer 20-200 weight portions, polyolefin 5-950 weight portions and lignocellulose 30-60 weight portions. The thermoplastic elastomer of vinyl arene-conjugated diene block copolymer is SBS, SIS, SEBS and/or SEPARATES; and the polyolefin is PE, PP, EVA, APP, APAO, POE, HDPE, LDPE and/or LLDPE. The present invention also discloses the preparation process of the asphalt modifier. The asphalt modifier can raise the high temperature performance and rut resisting performance of asphalt mixture material obviously, and can also raise its water damage resistance, low temperature cracking performance, etc.

Description

【Technical field】 [0001] The invention relates to an asphalt modifier, in particular to an asphalt modifier for traffic anti-rutting, as well as modified asphalt and asphalt mixture. 【Background technique】 [0002] At present, the production methods of asphalt are: 1) distillation method; 2) solvent deasphalting method; 3) oxidation method; 4) blending method and the combination of these four processes. Among them, the asphalt raw material "crude oil" of modified asphalt is best to choose Chinese crude oil as the main crude oil, whose characteristics are similar to naphthenic crude oil and intermediate base crude oil, and choose crude oil including paraffin base, naphthenic intermediate base, paraffin intermediate base, etc. as auxiliary crude. [0003] Among them, the road asphalt produced by using naphthenic crude oil can be realized by atmospheric and vacuum distillation because it conforms to the penetration of road asphalt, and some can be obtained by atmospheric disti...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L23/00E01C7/18C08L53/02C08L97/02
CPCC08L95/00C08L97/02C08L53/02C08L23/02
Inventor 黄绍龙赵欣平何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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