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Anti-splitting paster and preparation method thereof

An anti-crack sticker and coating technology, applied in the direction of coating, pavement details, construction, etc., can solve the problems of poor anti-crack waterproof effect, uneven sealing surface, time-consuming and labor-intensive, etc. Deformation, reducing the effect of tensile stress concentration

Inactive Publication Date: 2007-07-18
BAIHE INT HIGHWAY SCI & TECH HENAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it still needs to fill the joints on site, the construction is time-consuming and laborious, and it will inevitably soften at high temperatures, resulting in uneven sealing surface and poor crack resistance and waterproof effect.

Method used

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  • Anti-splitting paster and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: 48% asphalt, 5% SBS, 12% second-line pumping, 6% engine oil, 13% rubber powder, 3% tackifying petroleum resin C7, and 13% talcum powder.

Embodiment 2

[0023] Embodiment 2: asphalt 57%, SBS 10%, pumping three lines 13%, machine oil 4%, rubber powder 9%, tackifying petroleum resin C8 1%, calcium carbonate powder 6%.

Embodiment 3

[0024] Example 3: asphalt 54%, SBS 7%, pumping line 7%, machine oil 8%, rubber powder 11%, tackifying petroleum resin C9 2%, limestone powder 11%.

[0025] The method of preparing the anti-cracking sticker is to spread the tire base in the coating pool, attach the kneaded high-polymer modified asphalt material to both sides of the tire base, so that the high-polymer modified asphalt material can fully penetrate into the tire base so that it is compatible with the tire base. The tire base is firmly bonded, and finally the protective film layer is attached to the high-polymer modified asphalt material layer on one side at 130-150 ° C, and then cooled and cut into rolls. The mixing method of the high-polymer modified asphalt material is as follows: use a heat-conducting oil furnace to heat the storage tank containing the asphalt to melt the asphalt, and add the melted asphalt to the mixing reaction tank at 150-190°C for mixing with other raw materials 1 to 3 hours, and the mixed ...

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Abstract

The anticracking patch includes protecting film layer, upper coating layer, high strength base layer and lower coating layer arranged successively from the top to the bottom. Both the upper coating layer and the lower coating layer are made of polymer modified asphalt material comprising asphalt 48-58 wt%, SBS 5-10 wt%, tackifying resin 7-13 wt%, engine oil 4-8 wt%, rubber powder 9-11 wt%, tackifying petroleum resin 1-3 wt% and intensifier 3-13 wt%. The present invention is industrially produced and has excellent anticracking and waterproofing functions.

Description

technical field [0001] The invention belongs to the technical field of road crack repair and sealing, in particular to an anti-crack paste capable of repairing and sealing road cracks and a preparation process thereof. Background technique [0002] At present, the repairing method of highway crack is to adopt asphalt to carry out filling joint sealing on the spot, is about to pour in the crack through heating and melting common petroleum asphalt. Due to the strong temperature sensitivity of the asphalt, it becomes soft and flowing in summer, and is carried away by the wheels, and becomes hard and brittle in winter and cracks. Therefore, the joints need to be refilled in the second year, which increases the cost of road maintenance. No. 200410050262.5 Chinese invention patent application discloses a modified road crack sealant. The sealant does not soften and deform at high temperature, has high elasticity and does not crack at low temperature, and always seals road crack...

Claims

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Application Information

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IPC IPC(8): E01C11/02E01C23/09C09D195/00C09D153/02C09D157/02
Inventor 梁嵩巍宁杰范少朋
Owner BAIHE INT HIGHWAY SCI & TECH HENAN
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