Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of Experimental Flexible Pavements
A program of construction and performance evaluation of seven Virginia flexible pavements containing experimental features is reported. The objective of the program is to evaluate the performance of pavements incorporating new or timely design concepts and to assess the applicability of these concepts for further use. Among the major findings of the study are: (1) Pavements having equivalent design thickness indices are not necessarily equivalent in cost or early structural strength; (2) full depth asphaltic concrete pavements can give excellent performance in very poor soil areas, especially when the subgrade is modified with cement stabilization; (3) transverse shrinkage cracks reflect from a cement treated stone subbase through 3 in. (75 mm) of bituminous concrete in as little as 18 months and through 7 in. (175 mm) of bituminous concrete in less than 5 years; and (4) in some cases cement treatment of stone subbases can be omitted in passing (non-truck) lanes with no detriment to performance.
Evaluation of Experimental Flexible Pavements
A program of construction and performance evaluation of seven Virginia flexible pavements containing experimental features is reported. The objective of the program is to evaluate the performance of pavements incorporating new or timely design concepts and to assess the applicability of these concepts for further use. Among the major findings of the study are: (1) Pavements having equivalent design thickness indices are not necessarily equivalent in cost or early structural strength; (2) full depth asphaltic concrete pavements can give excellent performance in very poor soil areas, especially when the subgrade is modified with cement stabilization; (3) transverse shrinkage cracks reflect from a cement treated stone subbase through 3 in. (75 mm) of bituminous concrete in as little as 18 months and through 7 in. (175 mm) of bituminous concrete in less than 5 years; and (4) in some cases cement treatment of stone subbases can be omitted in passing (non-truck) lanes with no detriment to performance.
Evaluation of Experimental Flexible Pavements
K. H. McGhee (Autor:in)
1975
41 pages
Report
Keine Angabe
Englisch
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