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Waste and old asphalt thermal circulation recycling regenerating agent and preparation method thereof

A waste asphalt, thermal cycle technology, used in building components, building insulation materials, construction and other directions, can solve the problems of lack of stability, human injury, high price, etc., to achieve excellent thermal stability and light stability, and volatilization of harmful substances. The effect of low dosage and improved safety of use

Active Publication Date: 2012-11-21
CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most widely used plasticizers are dibutyl phthalate DBP and dioctyl phthalate DOP. They have a remarkable plasticizing effect on aged asphalt, but they are expensive, volatile, poor in stability, and highly toxic. more harmful to the human body
Secondly, because the regenerant contains light oil components, it lacks the necessary stability, resulting in poor temperature sensitivity and aging resistance of the regenerated asphalt

Method used

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  • Waste and old asphalt thermal circulation recycling regenerating agent and preparation method thereof
  • Waste and old asphalt thermal circulation recycling regenerating agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] Weigh 75kg of oil extracted from the four-line extract, 12kg of epoxy soybean oil, 4kg of turpentine, 4kg of petroleum resin, ultraviolet absorber UV-5310.7kg, light stabilizer 6220.7 and antioxidant 10100.7kg, and heat the oil extracted from the four-line extract to 100 ~120°C, add epoxy soybean oil and turpentine and stir for 5 minutes; maintain the above temperature, add petroleum resin, ultraviolet absorber UV-531, light stabilizer 622, antioxidant 1010, stir for 5-10 minutes until the mixture is uniform, and prepare waste asphalt Thermal cycle regeneration using regenerant as experimental group Ⅰ;

[0013] Weigh 70kg of four-line extraction oil, 10kg of epoxidized soybean oil, 3kg of turpentine, 3kg of petroleum resin, ultraviolet absorber UV-5310.5kg, light stabilizer 6220.5 and antioxidant 10100.5kg and prepare waste and old asphalt according to the above method for thermal cycle recycling The regeneration agent was used as the experimental group II;

[0014] We...

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Abstract

The invention provides a waste and old asphalt thermal circulation recycling regenerating agent which has a prescription comprising extract oil from fourth side line of a vacuum tower, epoxidized soybean oil, turpentine and petroleum resin, wherein the epoxidized soybean oil serves as a plasticizer and softener. The waste and old asphalt thermal circulation recycling regenerating agent has various physicochemical indexes obviously higher than those of commercially available waste and old asphalt regenerating agent, and meets the national recommended standard; more important, the epoxidized soybean oil is adopted as the plasticizer and the softener instead of dibutyl phthalate DBP and dioctyl phthalate DOP, so that the quantity of violated harmful substance is lower, and the safety of the regenerating agent in use is improved.

Description

technical field [0001] The invention relates to a building material additive, in particular to a waste asphalt heat cycle recycling regenerant and a preparation method thereof. technical background [0002] With the development of our country's social economy, the road transportation industry formed by urban roads and highways has developed by leaps and bounds and plays a pivotal role in the entire transportation system. The maintenance and restoration of road surface functions will gradually become the priority of road construction and management departments at all levels in our country. main mission. In the process of pavement maintenance, reconstruction and expansion, a large amount of waste asphalt mixture will be produced. The recycling of asphalt mixture is an economical, environmentally friendly and sustainable pavement repair technology. Over the years, countries around the world have extensively carried out experimental research on the recycling of asphalt mixture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L57/02C08K5/1515
Inventor 陈先勇何兆益郭天彪冉龙飞谢峰黄刚侯俊王国伟张瑜愈志龙董铃云
Owner CHONGQING ZONJO RENEWABLE RESOURCES DEV CO LTD
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