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SBS (styrene-butadiene-styrene) modified regenerant, preparation method thereof and asphalt regeneration method

A technology of modified asphalt and regeneration agent, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of poor regeneration effect, and achieve the effects of easy procurement, increased construction cost, and convenient on-site construction

Inactive Publication Date: 2012-08-01
YINGDA HEAT REGENERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is currently no regenerant specially used for aging SBS modified asphalt pavement on high-grade roads on the market. When pavement thermal regeneration is repaired, only ordinary regenerants can be used to restore the performance of SBS modified asphalt. However, ordinary regenerants The regeneration effect of SBS modified asphalt used on high-grade pavement is not good, so it is imperative to develop a special SBS modified regeneration agent

Method used

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  • SBS (styrene-butadiene-styrene) modified regenerant, preparation method thereof and asphalt regeneration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 SBS modified regeneration agent, its component mass percent:

[0029] Styrene-butadiene-styrene thermoplastic elastomer (SBS) 10%

[0030] 90A asphalt 15%

[0031] Extract oil 60%

[0032] Dioctyl phthalate (DOP) 14.95%

[0033] Stabilizer 0.05%.

Embodiment 2

[0034] Embodiment 2 SBS modified regeneration agent, its component mass percent:

[0035] Styrene-butadiene-styrene thermoplastic elastomer (SBS) 20%

[0036] 90A asphalt 39.7%

[0037] Extract oil 20%

[0038] Dioctyl phthalate (DOP) 20%

[0039] Stabilizer 0.3%.

Embodiment 3

[0040] Embodiment 3 SBS modified regeneration agent, its each component mass percent is as follows:

[0041] Styrene-butadiene-styrene thermoplastic elastomer (SBS) 15%

[0042] 90A asphalt 60%

[0043] Oil extracted 20.8%

[0044] Dioctyl phthalate (DOP) 4%

[0045] Stabilizer 0.2%.

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Abstract

The invention discloses an SBS (styrene-butadiene-styrene) modified regenerant. Components of the SBS modified regenerant include, in mass percent, 10-20% of SBS, 15-60% of 90A asphalt, 20-60% of extract oil, 4-20% of DOP (dioctyl-phthalate) and 0.05-0.3% of stabilizers. The invention further discloses a preparation method of the SBS modified regenerant and a method for regenerating the SBS modified asphalt by the aid of the SBS modified regenerant, and regenerative SBS modified asphalt is prepared. The SBS modified regenerant is made of raw materials easy to purchase, simple in process, convenient in production, fine in storage stability, stable in physical and chemical property and suitable for serving as a special regenerant for hot in-place recycling construction and hot recycling. Various indexes such as high-temperature stability, low-temperature crack resistance, elasticity and the like of the aged SBS modified asphalt can be obviously improved.

Description

technical field [0001] The invention relates to a road asphalt rejuvenator and a preparation method thereof, in particular to a SBS modified regenerant for regenerating aged SBS modified asphalt on high-grade road pavement and a preparation method thereof, and at the same time, relates to a The regeneration agent of the present invention regenerates SBS modified asphalt. Background technique [0002] SBS is a styrene-based thermoplastic elastomer, which is a styrene-butadiene-styrene triblock copolymer (Styrene Butadiene styrene block polymer), known as thermoplastic styrene-butadiene block copolymer or thermoplastic styrene-butadiene rubber. SBS modified asphalt is based on base asphalt, adding a certain proportion of SBS modifier, and SBS is evenly dispersed in asphalt by shearing, stirring and other methods to form a SBS blend material. The good physical properties of SBS are used to improve the asphalt. Do modification. [0003] The construction of expressways in our c...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08K5/12C08K5/01
Inventor 施伟斌张义甫戴合理杨键朱伟王国星
Owner YINGDA HEAT REGENERATION
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