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High-performance rubber asphalt pouring sealant and preparation method thereof

A technology for rubberized asphalt and joint-filling glue, which is applied in other directions such as rubber adhesives, asphalt material adhesives, chemical instruments and methods, etc. The effect is not ideal and other problems, to achieve the effect of improving low temperature crack resistance, improving routing performance, and improving product performance

Inactive Publication Date: 2013-12-04
XIYUEFA INT ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of cracks not only affects the comfort and safety of driving, but also the rainwater on the road surface penetrates into the base layer through the cracks, which will greatly weaken the strength and stability of the roadbed and cause more serious damage to the asphalt pavement
At present, the sources of joint filling materials used in China are widely sourced, the quality is uneven, and the use effect is not ideal, especially the low temperature performance is generally poor. Many joint filling glues will tear with the cracks in winter and lose their waterproof effect.

Method used

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  • High-performance rubber asphalt pouring sealant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Taking the production of 100KG of asphalt pavement joint glue of the present invention as an example, the raw materials used and the proportioning ratio are as follows:

[0029] Rubber powder 22.5kg

[0030] Modifier 5.8kg

[0031] Petroleum asphalt 65.5kg

[0032] Tackifier 2.0kg

[0033] Co-solvent 4.0kg

[0034] Stabilizer 0.2kg

[0035] The petroleum asphalt used in this example is grade A grade SK-90 road petroleum asphalt produced in South Korea, with a penetration of 80-100 (calculated as 0.1mm), and the rubber powder is waste tire rubber powder with a fineness of 40 meshes. Produced by Anqiang High Wear-Resistant Rubber Powder Co., Ltd.

[0036] Its preparation method is as follows:

[0037] Heat petroleum asphalt to 150°C; add modifier and stir until liquid, then add co-solvent, stir at 140°C~150°C for 30 minutes; continue to heat up to 190°C and slowly add rubber powder and stir for 30 minutes, Then add tackifier and stabilizer,...

Embodiment 2

[0039] Taking the production of 100KG of asphalt pavement joint glue of the present invention as an example, the raw materials used and the proportioning ratio are as follows:

[0040] Rubber powder 22.5kg

[0041] Modifier 5.8kg

[0042] Petroleum asphalt 63.0kg

[0043] Tackifier 2.0kg

[0044] Co-solvent 6.5kg

[0045] Stabilizer 0.2kg

[0046] The petroleum asphalt used in this example is grade A grade SK-90 road petroleum asphalt produced in South Korea, with a penetration of 80-100 (calculated as 0.1mm), and the rubber powder is waste tire rubber powder with a fineness of 40 meshes. Produced by Anqiang High Wear-Resistant Rubber Powder Co., Ltd.

[0047] Its preparation method is identical with embodiment 1.

Embodiment 3

[0049] Taking the production of 100KG of asphalt pavement joint glue of the present invention as an example, the raw materials used and the proportioning ratio are as follows:

[0050] Rubber powder 19.5kg

[0051] Modifier 7.8kg

[0052] Petroleum asphalt 60.0kg

[0053] Tackifier 3.0kg

[0054] Co-solvent 9.5kg

[0055] Stabilizer 0.2kg

[0056] The petroleum asphalt used in this example is grade A grade SK-90 road petroleum asphalt produced in South Korea, with a penetration of 80-100 (calculated as 0.1mm), and the rubber powder is waste tire rubber powder with a fineness of 60 mesh, which was purchased by Jiangyin City Produced by Anqiang High Wear-Resistant Rubber Powder Co., Ltd.

[0057] Its preparation method is identical with embodiment 1.

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Abstract

The invention discloses high-performance rubber asphalt pouring sealant and a preparation method thereof. The high-performance rubber asphalt pouring sealant is made from rubber powder, modifier, petroleum asphalt, tackifier, cosolvent, and stabilizer. The preparation method includes: heating the asphalt to 150-160 DEG C, adding the modifier, stirring to obtain liquid, adding the cosolvent and mixing for 30 minutes, heating to 190-200 DEG C, slowly adding the rubber powder, mixing for 30 minutes, adding the tackifier and the stabilizer, and mixing for 15 minutes to produce high-performance rubber asphalt pouring sealant. The rubber powder of waste tires is utilized, and accordingly product performance is improved, product cost is reduced and environmental pollution is reduced; the modifier, the rubber powder and the asphalt are mixed into stable, even mixture through the cosolvent, so that resin groups, rubber powder groups and asphalt groups can form a stable interlinked structure; through the modifier, route performance of the sealant can be improved, for example, softening point is increased and low temperature cracking resistance is improved; new cracks can be prevented effectively.

Description

technical field [0001] The invention belongs to highway pavement patching materials, in particular to a high-performance joint-filling adhesive used for filling joints on asphalt and cement road surfaces and a preparation method thereof. Background technique [0002] Asphalt or cement is widely used as the pavement gel material for highway pavement. Cracks are one of the main diseases of asphalt pavement. Due to the influence of traffic load, environmental factors and pavement structure, cracks occur and gradually expand over time. The existence of cracks not only affects the comfort and safety of driving, but also the rainwater on the road surface penetrates into the base layer through the cracks, which will greatly weaken the strength and stability of the roadbed and cause more serious damage to the asphalt pavement. At present, the domestically used joint filling materials come from a wide range of sources, the quality is uneven, and the use effect is not ideal, especi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J121/00C09J153/02C09J109/06C09J123/06C09J145/00C09J193/04C09J157/02C09K3/10
Inventor 刘跃金拴仙金芳付跃松苏小雷张鑫孙尚恒廉鹏豹赵永飞
Owner XIYUEFA INT ENVIRONMENTAL PROTECTION NEW MATERIALS CO LTD
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