A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Flexible Pavement Performance With and Without Geosynthetics: Nine Year Follow-Up
A project case study was undertaken to evaluate the differential performance of asphalt surfaced flexible pavement sections in a suburban community of Raleigh, North Carolina, USA nine years after being placed in service. Pavement sections that utilized a moderate strength reinforcement geotextile at the base course - subgrade interface showed a marked improvement in durability and performance compared to other pavement sections constructed without geosynthetics in the same subdivision during the same time period. These flexible pavement sections were examined using both destructive and non-destructive evaluation methods to assess the physical differences between the geosynthetically enhanced and non-geosynthetic pavement sections. The results of pavement coring, ground penetrating radar (GPR), falling weight deflectometer (FWD) and surface roughness measurements are presented herein. Pavement coring tests show the thickness of the pavement system layers and evaluate the layer boundaries. GPR testing results provide a larger surface cross sectional perspective into the pavement system layers in the reinforced and unreinforced sections. FWD results are presented using AREA parameters for both reinforced and unreinforced pavement sections. Pavement surface roughness assessments are presented using the mean international roughness index (MIRI) for reinforced and unreinforced pavement sections. A summary and conclusions of the pavement testing and analyses are provided at the conclusion of this report.
Flexible Pavement Performance With and Without Geosynthetics: Nine Year Follow-Up
A project case study was undertaken to evaluate the differential performance of asphalt surfaced flexible pavement sections in a suburban community of Raleigh, North Carolina, USA nine years after being placed in service. Pavement sections that utilized a moderate strength reinforcement geotextile at the base course - subgrade interface showed a marked improvement in durability and performance compared to other pavement sections constructed without geosynthetics in the same subdivision during the same time period. These flexible pavement sections were examined using both destructive and non-destructive evaluation methods to assess the physical differences between the geosynthetically enhanced and non-geosynthetic pavement sections. The results of pavement coring, ground penetrating radar (GPR), falling weight deflectometer (FWD) and surface roughness measurements are presented herein. Pavement coring tests show the thickness of the pavement system layers and evaluate the layer boundaries. GPR testing results provide a larger surface cross sectional perspective into the pavement system layers in the reinforced and unreinforced sections. FWD results are presented using AREA parameters for both reinforced and unreinforced pavement sections. Pavement surface roughness assessments are presented using the mean international roughness index (MIRI) for reinforced and unreinforced pavement sections. A summary and conclusions of the pavement testing and analyses are provided at the conclusion of this report.
Flexible Pavement Performance With and Without Geosynthetics: Nine Year Follow-Up
Lacina, B.A. (author) / Dull, F.S. (author)
2013
11 Seiten, Bilder, Tabellen, Quellen
Conference paper
Storage medium
English
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