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Asphalt modifying additive containing carbon black obtained from thermal cracking of waste tire

A technology of thermal cracking carbon black and asphalt modification, which is applied to building components, building insulation materials, buildings, etc., can solve the problems of poor low-temperature crack resistance, insufficient wear resistance and durability, and high-temperature softening, so as to prevent low-temperature cracking Cracking, improving flatness, and preventing high temperature softening

Inactive Publication Date: 2017-10-24
孙振轩
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to improve the quality of paved asphalt roads, a certain proportion of additives should be added to the base asphalt for modification. At present, the traditionally used asphalt modification additives include thermoplastic rubber, rubber, and resin. The use performance of the aluminum alloy has been improved to a certain extent, but there are still defects such as poor low temperature crack resistance, high temperature softening, insufficient wear resistance and durability.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0010] Step 1: Sieve the waste tire pyrolysis carbon black that needs to be mixed with the waste tire pyrolysis carbon black asphalt modification additive with a 200-mesh screen, and use the waste tires that account for 65% of the waste tire pyrolysis carbon black asphalt modification additive mass ratio Tire pyrolysis carbon black, 10% polyethylene, 8% SBS (styrene-isoprene-styrene), 3% maleic anhydride, 3% styrene-butadiene rubber, 5% rubber oil, 6% The triethylenetetramine is sequentially added and mixed and stirred evenly,

[0011] Step 2: Preheat waste tire pyrolysis carbon black asphalt modification additives accounting for 17% of the mass of modified asphalt to 100-110°C, preheat the temperature of 70# base asphalt to 130-150°C, and heat up the preheated waste The tire pyrolysis carbon black asphalt modification additive is mixed with the preheated 70# base asphalt. During the mixing process, the temperature is controlled at 130°C, and the shearing machine and the mixer...

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Abstract

The invention provides an asphalt modifying additive containing carbon black obtained from thermal cracking of a waste tire. The carbon black obtained from thermal cracking of the waste tire is taken as a main raw material of the asphalt modifying additive, polyethylene, SBS (styrene-butadiene-styrene), maleic anhydride, styrene butadiene rubber, rubber oil and triethylenetetramine in a certain proportion are added sequentially and uniformly stirred, the asphalt modifying additive containing the carbon black obtained from thermal cracking of the waste tire is formed, the asphalt modifying additive containing carbon black obtained from thermal cracking of the waste tire and matrix asphalt are preheated respectively and mixed, the mixture is sheared and stirred for a certain period of time at a certain temperature, and modified asphalt applicable to road surfacing is generated.

Description

Technical field: [0001] The invention belongs to the technical field of asphalt modification additives, and is especially suitable for paving road matrix asphalt modified waste tire pyrolysis carbon black asphalt modification additives. Background technique: [0002] In order to improve the quality of paved asphalt roads, a certain proportion of additives should be added to the base asphalt for modification. At present, the traditionally used asphalt modification additives include thermoplastic rubber, rubber, and resin. The use performance of aluminum alloy has been improved to a certain extent, but there are still defects such as poor low temperature crack resistance, high temperature softening, insufficient wear resistance and durability. Invention content: [0003] The purpose of the present invention is to design a kind of waste tire pyrolysis carbon black asphalt modified additive, carry out the carbon black that carries out pyrolysis with waste tire as the main raw ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L23/06C08L53/02C08L9/06C08L91/00C08K5/17C08K3/04
CPCC08L95/00C08L2205/035C08L2207/24C08L23/06C08L53/02C08L9/06C08L91/00C08K5/17C08K3/04C08K5/092
Inventor 孙振轩
Owner 孙振轩
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