Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mechanistic Evaluation of Superpave Level 1 Mixtures
This research involved the mechanistic analysis of two recently built pavements using 2 inch (in.) and -in. maximum nominal size Superpave mixtures. Fatigue life equations were developed for these mixtures and a conventional mixture of the KDOT based on the laboratory flexural fatigue tests on asphalt concrete beams. Field deflection tests were done on a 1000-foot (ft.) section on each pavement with a Dynatest 8000 FWD. The deflection results were used to back-calculate layer moduli values. The mechanistic responses namely, horizontal tensile strain at the bottom of the asphalt concrete layer and vertical compressive strain on top of the subgrade layer under an 18 kip Equivalent Single Axle Load (ESAL) were computed for each pavement using an elastic layer analysis software. Fatigue life, in term repetitions of 18 kip ESALs, was predicted for these pavements with the fatigue equations developed in this study.
Mechanistic Evaluation of Superpave Level 1 Mixtures
This research involved the mechanistic analysis of two recently built pavements using 2 inch (in.) and -in. maximum nominal size Superpave mixtures. Fatigue life equations were developed for these mixtures and a conventional mixture of the KDOT based on the laboratory flexural fatigue tests on asphalt concrete beams. Field deflection tests were done on a 1000-foot (ft.) section on each pavement with a Dynatest 8000 FWD. The deflection results were used to back-calculate layer moduli values. The mechanistic responses namely, horizontal tensile strain at the bottom of the asphalt concrete layer and vertical compressive strain on top of the subgrade layer under an 18 kip Equivalent Single Axle Load (ESAL) were computed for each pavement using an elastic layer analysis software. Fatigue life, in term repetitions of 18 kip ESALs, was predicted for these pavements with the fatigue equations developed in this study.
Mechanistic Evaluation of Superpave Level 1 Mixtures
R. Kaldate (Autor:in) / M. Hossain (Autor:in)
2001
140 pages
Report
Keine Angabe
Englisch
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