Method for evaluating uniformity of recycled asphalt

A technology of recycled asphalt and evaluation method, which is applied in the fields of material analysis, material analysis by optical means, image data processing, etc. It can solve the problems of failure to evaluate the mixing uniformity of new and old materials, and single evaluation angle of uniformity.
CN110208266AActive Publication Date: 2019-09-06CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
7 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Publication Date
2019-09-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a method for evaluating the uniformity of recycled asphalt. The method employs three uniformity evaluation indexes for aggregate distribution uniformity evaluation based on equal-area ring fan division, new aggregate distribution uniformity evaluation based on a particle position and area, and pore distribution uniformity evaluation based on a cross-sectional voidage. Compared with the commonly used asphalt concrete uniformity evaluation index, the method for evaluating the uniformity of recycled asphalt has the following advantage: the uniformity is evaluated from three aspects of new and old aggregates, new aggregates and pore space, so that the accuracy is high.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of uniformity evaluation of recycled asphalt pavement. In particular, it relates to a method for evaluating the uniformity of recycled asphalt mixture. Background technique

[0002] Every year, a large number of asphalt pavement in our country enters the repair and maintenance period, and the method of milling and resurfacing is usually used for renovation. However, this maintenance method will generate a large amount of discarded old asphalt pavement materials, which not only wastes resources, but also pollutes the environment. Therefore, the recycling of pavement materials has become an inevitable trend of highway maintenance in our country. The hot-in-place recycling technology can utilize 100% of the old asphalt pavement materials, which has significant economic and environmental benefits, but it is prone to the problem of uneven asphalt mixture. Accurate quantitative evaluation of uniformity can provi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More