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Pressure-sensitive pitch crack pouring sealant

A technology of pressure-sensitive asphalt and seam filling glue, which is applied in the direction of asphalt material adhesive, adhesive, adhesive type, etc. and other problems, to achieve the effect of improving peel strength and initial adhesion, facilitating brushing operations and improving adhesion

Inactive Publication Date: 2016-02-17
SHANDONG DASHAN ROAD & BRIDGE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Asphalt joint glue is easy to flow at high temperature, and it is easy to be rolled away by the wheels. At low temperature, it will become hard and brittle and easy to fall off. The above situation needs to be improved urgently

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The preparation method of the water resistance and high and low temperature resistance of the present embodiment is extremely strong caulking glue comprising:

[0018] (1) First select low-viscosity matrix asphalt (Qilu No. 70), add 100 parts of asphalt to the asphalt modification testing machine, heat up to 170 °C, stir evenly, add 3 parts of SBS, develop for 1 hour, and cool down to 160 °C, Add 11 parts of oil-based acrylic tackifying resin, add 0.1 part of co-solvent, add 3 parts of No. 3 stabilizer, and develop for about 1 hour. At 100°C, add 15 parts of asphalt thinner gasoline and develop for 1 hour to produce high-performance oily pressure-sensitive asphalt joint glue.

[0019] (2) The asphalt used in this patent complies with the provisions of the road petroleum asphalt standard (SH / T0522-2000) in the petrochemical industry standard of the People's Republic of China;

[0020] (3) The asphalt thinner used in this patent can choose different grades of gasoline ac...

Embodiment 2

[0024] The preparation method of the water resistance and high and low temperature resistance of the present embodiment is extremely strong caulking glue comprising:

[0025] (1) First select low-viscosity matrix asphalt, add 100 parts of asphalt to the asphalt modification testing machine, heat up to 190 ° C, stir evenly, add 10 parts of SBS, develop for 3 hours, when the temperature drops to 175 ° C, add oily acrylic acid to increase viscosity 15 parts of resin, add 1 part of co-solvent, add 6 parts of stabilizer, develop for about 1 hour, when the temperature drops to 160 ° C, add 1 part of oily warm mix agent, develop for 1 hour, when the temperature drops to 130 ° C, add asphalt to dilute Add 40 parts of diesel oil and develop for 1 hour to produce high-performance oily pressure-sensitive asphalt joint glue.

[0026] (2) The asphalt used in this patent complies with the provisions of the road petroleum asphalt standard (SH / T0522-2000) in the petrochemical industry standar...

Embodiment 3

[0030] The preparation method of the water resistance and high and low temperature resistance of the present embodiment is extremely strong caulking glue comprising:

[0031] (1) First select low-viscosity matrix asphalt, add 100 parts of asphalt to the asphalt modification testing machine, heat up to 180 °C, stir evenly, add 6 parts of SBS, develop for 2 hours, when the temperature drops to 167 °C, add oily acrylic acid to increase viscosity 13 parts of resin, add 0.5 parts of co-solvent, add 4 parts of stabilizer, develop for about 1 hour, when the temperature drops to 150 ° C, add 0.6 parts of oily warm mix agent, develop for 1 hour, when the temperature drops to 115 ° C, add asphalt to dilute Add 25 parts of kerosene, and develop for 1 hour to produce high-performance oil-based pressure-sensitive asphalt joint glue.

[0032] (2) The asphalt used in this patent complies with the provisions of the road petroleum asphalt standard (SH / T0522-2000) in the petrochemical industry ...

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PUM

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Abstract

The invention relates to pressure-sensitive pitch crack pouring sealant. The pressure-sensitive pitch crack pouring sealant is mainly prepared from, by weight, 100 parts of pitch, 3-10 parts of SBS, 11-15 parts of tackifying resin, 0.1-1 part of cosolvent, 3-6 parts of stabilizer, 0.2-1 part of oily temperature mixing agent and 15-40 parts of diluent. SBS is added, the high-and-low temperature resistance of the crack pouring sealant is improved, the adhesive force of the crack pouring sealant is improved, and the water stability of the pitch is greatly improved. The tackifying resin is added, the peeling strength and initial adhesion of the oily pressure-sensitive pitch crack pouring sealant are improved, and the service life of the crack pouring sealant is prolonged. The oily temperature mixing agent is added, the high-temperature viscosity of the modified pitch is reduced, the sealant can be constructed under the low-temperature environment, the pitch is prevented from thermal aging, and construction efficiency is improved.

Description

(1) Technical field [0001] The invention belongs to the field of asphalt pavement maintenance, and in particular relates to a pressure-sensitive asphalt joint glue. (2) Background technology [0002] Asphalt joint glue is easy to flow at high temperature, and it is easy to be rolled away by the wheels. At low temperature, it will become hard and brittle and easy to detach. The above situation needs to be improved urgently. (3) Contents of the invention [0003] In order to make up for the deficiencies in the prior art, the present invention provides a pressure-sensitive adhesive that improves the waterproof performance of the potting compound, improves the temperature stability of the potting compound (no flow at high temperature, and is not brittle at low temperature), and prolongs the service life of the potting compound. Asphalt joint glue. [0004] The present invention is achieved through the following technical solutions: [0005] A pressure-sensitive asphalt caulk...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J133/00C09J153/02C09J11/06C09J11/04
CPCC09J195/00C08L2205/03C09J11/04C09J11/06C08L53/02C08L33/00
Inventor 刘鹏捷
Owner SHANDONG DASHAN ROAD & BRIDGE ENG
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