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A kind of asphalt-based joint filling glue and preparation method thereof

A joint-filling glue and asphalt-based technology, applied in the field of joint-filling glue, can solve the problems of poor low-temperature performance of asphalt joint-filling glue, and achieve the effects of strong elasticity, improved low-temperature resistance, and difficulty in absorbing water

Active Publication Date: 2022-07-12
BENGBU SIFANG ASPHALT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide an asphalt-based joint-filling adhesive and its preparation method, which overcomes the problem of poor low-temperature performance of the asphalt-based joint-filling adhesive in the prior art

Method used

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  • A kind of asphalt-based joint filling glue and preparation method thereof

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Effect test

Embodiment 1

[0018] 20 kg of gelatin was dissolved in 30 kg of an aqueous solution containing 30 wt % of propylene glycol, then 6 kg of alkyd resin was added and heated to 85° C., and then 0.7 kg of catalyst dibutyltin dilaurate was added, reacted for 3 hours, filtered and dried to obtain modified gelatin.

[0019] Then, 80kg of No. 70 petroleum asphalt was heated to 180°C in a high-speed shearing machine, then 4kg of modified gelatin and 8kg of rubber powder were added for shearing for 35min, and then 1kg of 1,2,3,4-butanetetraol and 2kg of terephthalene were added. The mixture of bishydroxyethyl formate is continuously sheared for 10 minutes, cooled, lowered to room temperature, sealed and stored to obtain an asphalt-based joint glue.

Embodiment 2

[0021] 24 kg of gelatin was dissolved in 30 kg of an aqueous solution containing 32 wt % of propylene glycol, then 5 kg of alkyd resin was added and heated to 90° C., then 0.5 kg of catalyst dibutyltin dilaurate was added, reacted for 2.5 hours, filtered and dried to obtain modified gelatin.

[0022] Then, 100kg of No. 90 petroleum asphalt was heated to 190°C in a high-speed shearing machine, then 5kg of modified gelatin and 10kg of rubber powder were added for shearing for 30min, and then 1kg of 1,2,3,4-butanetetraol and 1.8kg of The mixture of bis-hydroxyethyl phthalate is continuously sheared for 10 minutes, cooled, lowered to room temperature, sealed and stored to obtain an asphalt-based joint glue.

Embodiment 3

[0024] 26 kg of gelatin was dissolved in 30 kg of an aqueous solution containing 35 wt % of propylene glycol, then 5 kg of alkyd resin was added and heated to 80° C., and then 0.6 kg of catalyst dibutyltin dilaurate was added, reacted for 3 hours, filtered and dried to obtain modified gelatin.

[0025] Then, 90kg of No. 80 petroleum asphalt was heated to 190°C in a high-speed shearing machine, then 3kg of modified gelatin and 10kg of rubber powder were added for shearing for 30min, and then 1kg of 1,2,3,4-butanetetraol and 2kg of terephthalene were added. The mixture of bishydroxyethyl formate is continuously sheared for 10 minutes, cooled, lowered to room temperature, sealed and stored to obtain an asphalt-based joint glue.

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Abstract

The invention discloses an asphalt-based joint filling glue and a preparation method thereof. Petroleum asphalt is heated to 170-190 DEG C in a high-speed shearing machine, then modified gelatin and rubber powder are added for shearing for 30-35 minutes, and then a stabilizer is added. Continue to shear for 5-10min, cool, reduce to room temperature, seal and store to obtain asphalt-based joint-filling glue. The invention overcomes the shortcomings of the prior art, and the asphalt-based joint-filling glue has good low temperature resistance, strong elasticity, and is not easy to break , good durability.

Description

technical field [0001] The invention relates to the technical field of seam filling glue, in particular to an asphalt-based seam filling glue and a preparation method thereof. Background technique [0002] The traditional road joint-filling asphalt materials are mostly matrix asphalt, and later gradually evolved to emulsified asphalt. Although emulsified asphalt is better than ordinary joint-filling asphalt, it can only achieve a certain joint-filling effect in a short period of time whether it is ordinary asphalt or emulsified asphalt. This is because ordinary asphalt is hard and brittle in winter. The ductility is poor. If ordinary asphalt is used to repair road cracks in summer, when the crack width increases in winter, the deformation of ordinary asphalt is very small, so that it is separated from one side of the crack or brittlely cracked directly from the middle of the material, and it is impossible to achieve sealing and waterproofing. Purpose. Therefore, it is nece...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J195/00C09J11/08C09J11/06
CPCC09J195/00C09J11/08C09J11/06C08L2205/035C08L89/00C08L67/08C08L21/00C08K5/053C08K5/12Y02A30/30
Inventor 张金保
Owner BENGBU SIFANG ASPHALT
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