Bituminous paving compacting uniformity refinement detection and evaluation method

Abstract

The invention relates to a bituminous paving compacting uniformity refinement detection and evaluation method. According to the invention, a non-nuclear density gauge PQI is used for testing density of different areas of the bituminous paving according to reasonable detection spacing, a statistics analysis is carried out on density data, density repeatability standard deviation Sr and SR in the paving and among the pavings are detected, density consistency accountancy capability k and h in the paving and among the pavings are detected, density distribution uniformity of the detection road can be evaluated in a quantification mode, a core sample is drilled on a low density representative point, gap distribution characteristic on a CT cross-sectional image on the core sample can be analyzed by an image processing technology, the section gap quantity homogeneity coefficient UCN and section void fraction homogeneity coefficient UCR are calculated, gap distribution uniformity in the bituminous paving can be reflected according to the gap quantity and void fraction of the cross-sectional image, compacting quality uniformity of the bituminous paving can be comprehensively evaluated according to integral and local aspects, and the disadvantages of compacting uniformity detection index of the bituminous paving lacked in a current pavement quality acceptance system can be made up.

Description

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AI Technical Summary

Benefits of technology

This patented solution involves analyzing data obtained by measuring the thickness or volume of an aggregate material called asphaltebrousum (a type of stone) on topography maps made up of layers of varying densities. By comparing this analysis results against existing standards, it provides valuable insights into how well the materials behave properly under traffic loadings over time. It also helps predict future performance issues such as cracks caused due to temperature changes or deformation. Overall, these techniques help improve highway safety measures like paving lane markers and improved design practice.

Problems solved by technology

The technical problem addressed in this patents relates to improving homogeneously distributed materials used in road structures like paving stones or roads without causing defects called seaminess issues. This issue arises because different types of aggregating agents may affect the properties of the mixes themselves when they come together under pressure from vehicular loads. Additionally, there have been attempts at developing methods to detect imperfections within mixed mixtures containing asphalts, but existing techniques only provide limited data points indicating their presence.

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