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A platform for research: civil engineering, architecture and urbanism
Flexible Pavement Reinforcement using Geotextiles
Using high strength woven reinforcement geotextiles to reinforce the aggregate layer of a flexible pavement provides savings by reducing the overall section thickness and/or extending the service life of the pavement. Several large-scale asphalt flexible pavement test sections were constructed to evaluate the performance benefits provided by two different woven reinforcement geotextiles and to calibrate their performance to current flexible pavement design methods. The traffic benefit ratio (TBR) and/or asphalt and aggregate base layer thickness reductions (BCR) for the geotextile reinforced test sections were evaluated by comparing their test results to unreinforced test sections. The geotextile reinforced test sections showed clear performance improvements over the unreinforced test sections, even when constructed with reduced asphalt and aggregate base layer thickness. The performance benefits of the as-constructed test sections are assessed based on normalized pavement layer material properties and accelerated pavement testing (APT) loading relative to the AASHTO 1993 flexible pavement design method. The corresponding TBR and BCR values for the tested reinforcement geotextiles are calibrated to their large-scale test section performance. The calibrated reinforcement geotextile TBR and BCR values are used to determine the geosynthetic structural coefficient (GSC) for use in the AASHTO 1993 flexible pavement design method for each roadway reinforcement geotextile.
Flexible Pavement Reinforcement using Geotextiles
Using high strength woven reinforcement geotextiles to reinforce the aggregate layer of a flexible pavement provides savings by reducing the overall section thickness and/or extending the service life of the pavement. Several large-scale asphalt flexible pavement test sections were constructed to evaluate the performance benefits provided by two different woven reinforcement geotextiles and to calibrate their performance to current flexible pavement design methods. The traffic benefit ratio (TBR) and/or asphalt and aggregate base layer thickness reductions (BCR) for the geotextile reinforced test sections were evaluated by comparing their test results to unreinforced test sections. The geotextile reinforced test sections showed clear performance improvements over the unreinforced test sections, even when constructed with reduced asphalt and aggregate base layer thickness. The performance benefits of the as-constructed test sections are assessed based on normalized pavement layer material properties and accelerated pavement testing (APT) loading relative to the AASHTO 1993 flexible pavement design method. The corresponding TBR and BCR values for the tested reinforcement geotextiles are calibrated to their large-scale test section performance. The calibrated reinforcement geotextile TBR and BCR values are used to determine the geosynthetic structural coefficient (GSC) for use in the AASHTO 1993 flexible pavement design method for each roadway reinforcement geotextile.
Flexible Pavement Reinforcement using Geotextiles
Lacina, B.A. (author) / Sack, R.L. (author) / Odgers, B.O. (author)
Geosynthetics, Geosynthetics Conference, 2015 ; 1000-1008
2015
9 Seiten, Bilder, Tabellen, Quellen
Conference paper
Storage medium
English
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