Evaluation of Geocomposite Pavement Panel Drains Installed in a Sand Backfillunder Revised Installation Specification (Revised)

摘要

This report discusses the performance of the 1989 revised installationspecification to insure the integrity of the drainage system in Kentucky and in response to the problem on damage to the inner core of the edge drain prior to this revision. It consisted of moving panel to the shoulder of the trench and then flushing a sand slurry into the trench for backfill. Flushing the sand eliminates the need for mechanical compaction. Since 1989, two projects have been completed using the revised note for installation and another is currently under construction.