A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of an Improved Asphalt Binder Specification Testing Approach
This project refined and evaluated a test method, based on fracture mechanics, for predicting low temperature performance of asphalt binders. Fracture performance properties of selected asphalt binders from various pavement trial sections in Canada (particularly from Highway 655) along with additional commercial materials were determined. The ductile fracture properties varied by a significant amount with the mixture, showing the highest essential work of fracture performing well in the field and those with lower works of fracture performing poorly. In contrast, the mixture performing best in the repeated compression tests at both 25 deg C and 40 deg C performed worst in service, suggesting that this test measures properties which show little relevance for fracture performance. Failure properties at low temperatures in both creep tests and controlled crack opening displacement tests were determined. Based on research results, the Ontario Ministry of Transportation has approved two additional pavement trials, one on Highway 417 and the other on a new section of Highway 655. These and other test sections are being used in the validation tests for the laboratory standards developed under the two IDEA projects. Several other agencies (Ontario Ministry of Transportation, Imperial Oil of Canada, and the Science and Engineering Research Council of Canada) have collaborated in the IDEA effort.
Development of an Improved Asphalt Binder Specification Testing Approach
This project refined and evaluated a test method, based on fracture mechanics, for predicting low temperature performance of asphalt binders. Fracture performance properties of selected asphalt binders from various pavement trial sections in Canada (particularly from Highway 655) along with additional commercial materials were determined. The ductile fracture properties varied by a significant amount with the mixture, showing the highest essential work of fracture performing well in the field and those with lower works of fracture performing poorly. In contrast, the mixture performing best in the repeated compression tests at both 25 deg C and 40 deg C performed worst in service, suggesting that this test measures properties which show little relevance for fracture performance. Failure properties at low temperatures in both creep tests and controlled crack opening displacement tests were determined. Based on research results, the Ontario Ministry of Transportation has approved two additional pavement trials, one on Highway 417 and the other on a new section of Highway 655. These and other test sections are being used in the validation tests for the laboratory standards developed under the two IDEA projects. Several other agencies (Ontario Ministry of Transportation, Imperial Oil of Canada, and the Science and Engineering Research Council of Canada) have collaborated in the IDEA effort.
Development of an Improved Asphalt Binder Specification Testing Approach
S. A. M. Hesp (author)
2006
126 pages
Report
No indication
English
| British Library Online Contents | 2001
| British Library Conference Proceedings | 1996
Specification for sheet asphalt binder and surface courses
Engineering Index Backfile | 1929
Asphalt Binder Testing Variability
| British Library Conference Proceedings | 2001
Specification for sheet asphalt binder and surface course
| UB Braunschweig | 1934