Air voids measurement on asphalt mizes section surface based on image analysis
Asphalt concrete is a porous and no uniform material; air void always plays an important role in asphalt concrete quality control. This study describes a new analytical method to quantify the air voids on section surface of asphalt mixes based on image analysis. This study establish a credible relationship of natural logarithmic between the micro index from this new measurement and traditional macro index of air voids and put forward a uniform method which can predict the percent air voids being suitable to various aggregates of asphalt concrete and easy to promote based on image analysis. This study also established a system approach to analyze the image features of air voids and defined the composition of the air voids features which are geometry, gray-scale and spatial distribution features. These image features of air voids can establish a quantized correlation with percent air voids or other macro index and can explain the phenomenon that some macro index conflict each other. It is necessary to study further into the micro level of air void properties; the image analysis technique provided in this paper will be a powerful too to study the features of air voids.
Air Voids Image analysis Asphalt mizes
Yang Hao Yuan Hai-Wen Liu Yuan-Quan Zhang Hai-Xia Zhang Lei
Beijing University of Aeronautics and Astronautics,Beijing 100191,China CCCC First Highway Engineering Co.,LTD Beijing 100024,China Inner Mongolia Technical College of Construction,Huhehot 010070,China Research Institute of Highway Ministry of Transport,Beijing 100088,China
国际会议
2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)
北京
英文
3524-3530
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）