A vegetable oil-type asphalt recycling agent and a method for preparing the same

A technology of asphalt rejuvenating agent and vegetable oil, which is applied in building structures, building components, building insulation materials, etc., can solve the problems of use property attenuation and asphalt mixture road performance degradation, and achieve improved performance, low viscosity, economical safety, etc. Effect

Active Publication Date: 2013-11-13
RES INST OF HIGHWAY MINIST OF TRANSPORT
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] Asphalt materials will age during transportation, mixing, and use. The reason is that a series of physical and chemical reactions have occurred in the internal components of asphalt, such as volatilization, polymerization, and oxidation, so the use of asphalt binder properties will attenuate, resulting in the decline of asphalt mixture pavement performance

Method used

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  • A vegetable oil-type asphalt recycling agent and a method for preparing the same

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Take 500g of 110# asphalt, heat it to 140°C, add 50g of tung oil, and keep it at 140°C for 0.5 hours.

Embodiment 2

[0038] Take 500g of 110# asphalt, heat it to 140°C, add 150g of tung oil, and keep it at 140°C for 0.5 hours.

Embodiment 3

[0040] Take 500g of 110# asphalt, add 50g of castor oil after heating to 140°C, and keep it at 140°C for 0.5 hours.

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Abstract

A vegetable oil-type asphalt recycling agent is composed of component A and component B, wherein the component A is one or two selected from asphalt and residual oil; and component B is a composition of vegetable oil and an alcohol, a composition of vegetable oil and a thermoplastic elastomer, or vegetable oil or vegetable oil prepolymer; and based on the total weight of the asphalt recycling agent, the content of component A is 40-95 % by mass, and the content of component B is 5-60% by mass. The present invention also discloses a method for preparing the vegetable oil-type asphalt recycling agent.

Description

technical field [0001] The invention belongs to the field of road construction materials, and in particular relates to a vegetable oil type asphalt regeneration agent. [0002] The present invention also relates to a method for preparing the above-mentioned vegetable oil type asphalt regenerant. Background technique [0003] By the end of 2012, the mileage of highways in my country had reached 96,000 kilometers, of which asphalt concrete pavement accounted for 80% or more. The design service life of expressways in my country is generally 15 to 20 years. Due to the serious phenomenon of vehicle overloading and the aging of road asphalt materials, it is bound to cause road diseases. After the road is damaged, it needs to be renovated. During the renovation process, there will be a lot of waste asphalt concrete. If it is discarded, it will waste resources and pollute the environment. If it is recycled, it not only makes reasonable use of renewable resources, but also solves t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L9/06C08L53/02
Inventor 曹东伟吴小维钟成雨张海燕李海文唐国奇
Owner RES INST OF HIGHWAY MINIST OF TRANSPORT
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