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Tack coatoil and preparation method thereof

A technology for sticky oil and petroleum asphalt, applied in the field of sticky oil and its preparation, can solve the problems of reducing sticky oil viscosity, insufficient bonding strength, low viscosity of sticky oil at 135°C, etc., and achieves the effect of improving durability

Inactive Publication Date: 2020-06-05
JIANGSU TIANNUO ROAD MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantages are: 1. Low bonding strength; 2. It takes a long time to spray and cure; 3. The low viscosity of viscous oil at 135°C leads to poor interlayer connection strength
Chinese patent CN 107245248 A mentions an environmentally friendly hot-melt non-stick tire sticky oil and its preparation method. However, due to the addition of recycled synthetic wax or natural wax in the preparation process, the viscosity of the adhesive layer oil is reduced, and the viscosity of the adhesive layer oil is much lower after construction. Lower than the viscosity of the binder, resulting in insufficient bond strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) 70 parts of base asphalt, 2 parts of SBS modifier, 3 parts of reclaimed ethylene-vinyl acetate copolymer, 15 parts of reclaimed waste tire rubber were stirred with a mixer for 10 minutes, then sheared for 60 minutes;

[0030] (2) Add 10 parts of natural asphalt and 0.5 part of sulfur to stir and swell for 3 hours to obtain a new viscous layer oil.

[0031] The prepared adhesive layer oil was tested and evaluated. The dynamic viscosity of the product was 23Pa.s at 135°C, the pull-out strength of adhesion at 25°C was 1.58MPa, and the pull-off strength of adhesion at 40°C was 0.62MPa.

Embodiment 2

[0033] 79 parts of base asphalt, 1 part of SBS modifier, and 20 parts of recycled waste tire rubber were stirred for 20 minutes, then cut for 30 minutes, and then stirred and swelled with a mixer for 4 hours to obtain a new viscous layer oil.

[0034] The prepared viscous oil was tested and evaluated. The dynamic viscosity of the product at 135°C was 28Pa.s, the adhesion pullout strength at 25°C was 1.62MPa, and the adhesion pullout strength at 40°C was 0.71MPa.

Embodiment 3

[0036] 75 parts of base petroleum asphalt, 5 parts of deoiled asphalt, 15 parts of recycled waste tire rubber, and 5 parts of waste mechanical lubricating oil were mixed and stirred for 180 minutes to obtain a new viscous layer oil.

[0037] The prepared adhesive layer oil was tested and evaluated. The dynamic viscosity of the product was 15Pa.s at 135°C, the pull-out strength of adhesion at 25°C was 1.6MPa, and the pull-off strength of adhesion at 40°C was 0.69MPa.

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Abstract

The invention relates to atack coat oil for connecting adjacent structural layers of a newly built or maintained pavement and a preparation method of the adhesive layer oil. The components comprise matrix asphalt and an auxiliary material, wherein the auxiliary material is one or more of old tire rubber powder, an SBS modifier, a polyolefin, a recycled polyolefin, an ethylene-vinyl acetate copolymer, natural asphalt, deoiled asphalt, waste mechanical lubricating oil, sulfur and polyphosphoric acid; wherein the dynamic viscosity at the temperature of 135 DEG C is 10-40 Pa.s. The bonding strength of the tack coat oil is high, the influence on subsequent construction is small, and the material cost is low.

Description

technical field [0001] The invention relates to the field of road materials, and relates to a viscous layer oil used for the connection between adjacent structural layers of newly built or maintained road surfaces and a preparation method thereof. Background technique [0002] The asphalt pavement adhesive layer can ensure the effective bonding between adjacent structural layers, and has a very important impact on the performance and service life of asphalt pavement. Spreading sticky layer oil can firmly bond the layers of the asphalt pavement together. The interlayer bond strength and anti-skid ability provided by the sticky layer oil can bond the layers of the pavement structure into a whole, improving the durability of the pavement. So that under the action of the vehicle load, the mutual damage of the surface layers will not occur. The quality of the adhesive layer oil bonding effect is one of the important factors affecting the service life of the pavement. In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J195/00C09J11/08C09J11/04
CPCC08K2003/329C08L2205/025C08L2205/035C08L2207/20C09J11/04C09J11/08C09J195/00C08L23/0853C08L53/02C08L19/003C08L95/00C08L91/00C08L23/02C08K3/32
Inventor 郭兆民李玉环张玉贞
Owner JIANGSU TIANNUO ROAD MATERIAL TECH
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