Quantify pavement segregation

Chieh Min Chang, Jian Shiuh Chen, Chien Cheng Fang

研究成果: Paper同行評審

摘要

Since the identification of segregation on asphalt pavements has been based on visual observations in Taiwan, it is essential to develop a quantitative method to detect presence and severity of segregation. The non-nuclear density device was selected for the field measurements at nine test sites, and cores were taken for laboratory testing. The non-nuclear density difference between segregated and control areas was found to increase with increasing the segregation severity. For medium or heavy segregated areas, the non-nuclear density difference was more than 90 kg/m3. Analyses of the results showed that there was a significant increase in surface texture depth of segregated areas as compared to control areas. In medium or heavy segregated areas, the air voids increased by 20% and the indirect tensile strength decreased by 8% as compared to the control area. The criterion to detect segregation was based on the statistical differences in non-nuclear measured density values with a p-value 0.05. If a statistical difference in non-nuclear density between segregated and control areas existed, the chance of aggregate gradation difference in percent passing the 3/8", No. 4 and No. 8 sieves for medium and heavy segregation was 78% and 64%, respectively.

原文English
頁面241-246
頁數6
出版狀態Published - 2007 一月 1
事件5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007 - Park City, United States
持續時間: 2007 八月 82007 八月 10

Other

Other5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007
國家/地區United States
城市Park City
期間07-08-0807-08-10

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造

指紋

深入研究「Quantify pavement segregation」主題。共同形成了獨特的指紋。

引用此