Quantify pavement segregation

Chieh Min Chang, Jian Shiuh Chen, Chien Cheng Fang

Research output: Contribution to conferencePaper

Abstract

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.

Original languageEnglish
Pages241-246
Number of pages6
Publication statusPublished - 2007 Jan 1
Event5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007 - Park City, United States
Duration: 2007 Aug 82007 Aug 10

Other

Other5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007
CountryUnited States
CityPark City
Period07-08-0807-08-10

Fingerprint

Pavements
Asphalt pavements
Sieves
Tensile strength
Textures
Testing
Air

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Chang, C. M., Chen, J. S., & Fang, C. C. (2007). Quantify pavement segregation. 241-246. Paper presented at 5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007, Park City, United States.
Chang, Chieh Min ; Chen, Jian Shiuh ; Fang, Chien Cheng. / Quantify pavement segregation. Paper presented at 5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007, Park City, United States.6 p.
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Chang, CM, Chen, JS & Fang, CC 2007, 'Quantify pavement segregation' Paper presented at 5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007, Park City, United States, 07-08-08 - 07-08-10, pp. 241-246.

Quantify pavement segregation. / Chang, Chieh Min; Chen, Jian Shiuh; Fang, Chien Cheng.

2007. 241-246 Paper presented at 5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007, Park City, United States.

Research output: Contribution to conferencePaper

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Chang CM, Chen JS, Fang CC. Quantify pavement segregation. 2007. Paper presented at 5th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control, MAIREPAV 2007, Park City, United States.