Regenerant for aged asphalt and preparation method thereof

Abstract

The invention discloses a regenerant for aged asphalt and a preparation method thereof, and belongs to the field of road engineering. The asphalt regenerant of the invention is composed of the following ingredients (by weight): 10-20 parts of furfural extract oil, 10-15 parts of bisphenol A epoxy resin, 1-3 parts of glycidyl methacrylate, 1-3 parts of dimethyl phthalate, 1-3 parts of ethanol, 2-5parts of alicyclic epoxy resin, 5-10 parts of used oil, 2-5 parts of dibutyltin dilaurate, 1-3 part of cyclohexanone, 2-5 parts of epoxidized fatty acid methyl ester, 1-3 parts of petroleum ether, 1-3parts of epoxidized soybean oil, 1-5 parts of heavy oil and 1-3 parts of cycloalkyl distillate. The regenerant has characteristics of high temperature performance, excellent low-temperature crack resistance and strong ageing resistance and weather resistance, and is suitable for large-scale promotion and application.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a regeneration agent suitable for aged asphalt and a preparation method thereof. Background technique [0002] After a road has been built for a period of time, it needs regular maintenance. The slag produced by road maintenance has become the biggest burden on road maintenance, especially the asphalt material on the road surface has become one of the sources of solid pollution, which is also not allowed by environmental protection. [0003] In view of this, how to reuse the discarded asphalt pavement materials has become the primary problem of road maintenance. Asphalt pavement materials are discarded mainly because of a series of physical and chemical changes such as volatilization, oxidation, and polymerization of asphalt under the action of temperature, oxygen, light, rain, and driving loads, which cause light oil to volatilize, resulting in asphalt aging and road s...

AI Technical Summary

Problems solved by technology

[0007] One is that the high-temperature performance and low-temperature crack resistance of the prepared asphalt rejuvenator are not good, and the porosity after compaction of asphalt is high, the integrity and durability are poor, and the aging resistance and weather resistance are weak

[0008] The second is that the reaction conditions of the whole preparation process are harsh, the finished product processing time is long, the storage stability is poor, the industrialization is complicated, the production cost is high, and the yield is low

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