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Additive for thermosetting asphalt mixture, and preparation method and application thereof

A technology of asphalt mixture and additives, which is applied in building thermal insulation materials, building components, buildings, etc., to achieve long effective operation time, improved load-bearing performance, and good weather resistance.

Inactive Publication Date: 2014-06-25
李鹏露
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PDCPD has excellent physical properties, there is still a big gap from the standard of modified asphalt in road engineering. So far, it has not been reported in the field of road engineering.

Method used

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  • Additive for thermosetting asphalt mixture, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Dissolve 0.5g of the first-generation Grubbs catalyst in 20g of toluene, stir the mixed solution into 500g of dicyclopentadiene, mix evenly, and polymerize to obtain an additive for thermosetting asphalt mixture.

[0048] Take 300g of the mixture and pour it into the preformed open-graded cold patch standard rutting test piece, and take 30g and pour it into the preformed open-graded cold patch standard Marshall test piece. At 20°C, it takes 20 minutes to cure.

Embodiment 2

[0050] Dissolve 0.5g of the second-generation Hoveyda-Grubbs catalyst in 20g of toluene, add the mixed solution to 500g of dicyclopentadiene after a full shift, mix evenly, and polymerize to obtain an additive for thermosetting asphalt mixture.

[0051] Take 300g of the mixture and pour it into the preformed open-graded cold patch standard rutting test piece, take 30g and pour it into the preformed open-graded cold patch standard Marshall test piece, and it will take 10 minutes to cure at -20°C .

Embodiment 3

[0053] Additives were prepared according to the method of Example 1. The difference is: add 0.125g triphenylphosphine to the catalyst and organic solvent, and it takes 15 minutes to cure at 40°C.

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Abstract

The invention relates to an additive for a thermosetting asphalt mixture, which is prepared by performing ring-opening polymerization on dicyclopentadiene in an organic solvent under the action of a catalyst. When being used in an asphalt mixture, the polymer greatly enhances the bearing property of the asphalt mixture, lowers the crack, prevents water from infiltration, and achieves the goal of favorable stable repair of road surfaces.

Description

technical field [0001] The invention relates to an additive for thermosetting asphalt mixture and its preparation method and application, belonging to the field of materials. Background technique [0002] In recent years, due to the rapid development of transportation, the rapid increase of traffic volume and vehicle axle load, and the channelization of driving, higher requirements have been put forward for the performance of asphalt aggregates. On the one hand, asphalt aggregates are required to have high-temperature stability without rutting; on the other hand, it is required to have low-temperature crack resistance, fatigue resistance, and prolong the service life of the pavement. In order to improve the performance of asphalt aggregates and meet the quality indicators required by the project, people continue to improve asphalt aggregates. [0003] At present, epoxy resin, polyurethane, phenolic, polyester and other materials are often used as thermosetting resins at hom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F132/08C08F232/08C08F212/08C08F236/06C08L45/00C08L95/00E01C19/02
Inventor 李鹏露苏军
Owner 李鹏露
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