A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Long-Term Field Performance of Geosynthetics in Pavement Subgrades in Virginia
Geosynthetics are used in the pavement base/subgrade interface for possible benefits of filtration, drainage, separation to prevent base contamination, and subgrade reinforcement. The Virginia Department of Transportation has constructed two experimental sections using geosynthetics in Bedford and Albemarle counties that have been in service for 23 and 10 years, respectively. Recently, the Virginia Transportation Research Council conducted a follow-up investigation of the long-term performance of these sections. These sections were assessed using falling weight deflectometry and pavement condition ratings (i.e., a distress survey). In the Bedford project, sections with either geotextile or geogrid have a better structural condition than a section without geosynthetics. In addition, no evidence of contamination of base aggregate with subgrade clay was observed except for one segment with no geosynthetics and 4 inches (100 mm) of base. After 10 years, very little distresses was observed in the Albemarle project on both the control and geotextile sections.
Long-Term Field Performance of Geosynthetics in Pavement Subgrades in Virginia
Geosynthetics are used in the pavement base/subgrade interface for possible benefits of filtration, drainage, separation to prevent base contamination, and subgrade reinforcement. The Virginia Department of Transportation has constructed two experimental sections using geosynthetics in Bedford and Albemarle counties that have been in service for 23 and 10 years, respectively. Recently, the Virginia Transportation Research Council conducted a follow-up investigation of the long-term performance of these sections. These sections were assessed using falling weight deflectometry and pavement condition ratings (i.e., a distress survey). In the Bedford project, sections with either geotextile or geogrid have a better structural condition than a section without geosynthetics. In addition, no evidence of contamination of base aggregate with subgrade clay was observed except for one segment with no geosynthetics and 4 inches (100 mm) of base. After 10 years, very little distresses was observed in the Albemarle project on both the control and geotextile sections.
Long-Term Field Performance of Geosynthetics in Pavement Subgrades in Virginia
Hossain, M. Shabbir (author) / Hoppe, Edward J. (author) / Weaver, Chaz B. (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 245-258
2019-03-21
Conference paper
Electronic Resource
English
Long-Term Field Performance of Geosynthetics in Pavement Subgrades in Virginia
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