A kind of enhanced asphalt regenerant and preparation method thereof

Abstract

An enhanced asphalt rejuvenator and its preparation method, the asphalt rejuvenator includes the following components in parts by mass: 10-60 parts of regeneration components, the regeneration components include mixing light oil and heavy oil in an appropriate proportion 1-30 parts of ultra-fine powder, the ultra-fine powder is a porous structure ultra-fine powder obtained through low-temperature plasma modification, and the average particle size of the powder is less than 100 μm. The invention can obtain the superfine powder reinforced asphalt rejuvenator with good dispersing effect and high compatibility. The improvement is relatively large, especially its anti-secondary aging performance has been greatly improved, thereby prolonging the service life of the pavement paved with recycled asphalt mixture, and it is expected to reduce the post-maintenance cost of the paved road in engineering.

Description

technical field

[0001] The invention relates to an enhanced asphalt regenerant and a preparation method thereof. Background technique

[0002] With the increase of the service life of asphalt pavement in our country, a large number of roads have reached the design life in recent years. Therefore, the new technology of waste asphalt regeneration, which can avoid the waste of a large amount of waste asphalt mixture, has become the focus of a new round of research, and asphalt regeneration agent as the core of this technology has received extensive attention.

[0003] Although existing asphalt rejuvenators can restore the basic properties of aged asphalt to a certain extent, their comprehensive mechanical properties cannot fully meet the construction requirements in actual engineering applications.

[0004] Although ultrafine powder can be introduced into the asphalt rejuvenator system to strengthen and modify the recycled mixture, however, the superfine powder has a high surf...

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