Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rational Characterization of Pavement Structures Using Deflection Analysis. Volume 1. Research Results and Findings
A rational overlay design method for flexible pavements in Arizona has been developed which includes roughness, fatigue and plastic deformation models. During the development of the method, twenty in-service pavement sites were selected from Arizona highways covering various geographical and environmental regions, soil types, pavement conditions and traffic volumes. Nondestructive tests (NDT) were performed on these sites using the Falling Weight Deflectometer at three stress levels as well as the Dynaflect. The pavement layers and subgrade moduli were backcalculated from NDT data using both static and dynamic analyses. The moduli of asphaltic layers were further adjusted for temperature. Statistical analysis was performed and the stress sensitivity was found to be small. Cone penetration tests were further performed to verify the subgrade moduli. Resilient modulus tests were performed in the lab on asphalt concrete cores at three temperatures and on subgrade materials. In addition, base and subbase gradation as well as soil classification and Atterberg limits were obtained. The study expanded the data base for material properties in Arizona.
Rational Characterization of Pavement Structures Using Deflection Analysis. Volume 1. Research Results and Findings
A rational overlay design method for flexible pavements in Arizona has been developed which includes roughness, fatigue and plastic deformation models. During the development of the method, twenty in-service pavement sites were selected from Arizona highways covering various geographical and environmental regions, soil types, pavement conditions and traffic volumes. Nondestructive tests (NDT) were performed on these sites using the Falling Weight Deflectometer at three stress levels as well as the Dynaflect. The pavement layers and subgrade moduli were backcalculated from NDT data using both static and dynamic analyses. The moduli of asphaltic layers were further adjusted for temperature. Statistical analysis was performed and the stress sensitivity was found to be small. Cone penetration tests were further performed to verify the subgrade moduli. Resilient modulus tests were performed in the lab on asphalt concrete cores at three temperatures and on subgrade materials. In addition, base and subbase gradation as well as soil classification and Atterberg limits were obtained. The study expanded the data base for material properties in Arizona.
Rational Characterization of Pavement Structures Using Deflection Analysis. Volume 1. Research Results and Findings
M. S. Mamlouk (Autor:in) / W. N. Houston (Autor:in) / E. F. McBrien (Autor:in) / S. L. Houston (Autor:in) / J. P. Zaniewski (Autor:in)
1988
250 pages
Report
Keine Angabe
Englisch
| NTIS | 1981
Pavement Deflection Evaluations
| NTIS | 1992
New research tool for measuring pavement deflection
| Engineering Index Backfile | 1966
Pavement Deflection Test Database
| NTIS | 1990