Completed: August 2009
Project Length: 1,044 ft (two-lane pavement)
236 ft (single-lane pavement)
Panel Dimensions: Two-lane pavement: 24' x 9'-10" x 8"
Single-lane pavement: 12' x 9'-10" x 8"
Number of panels: 130
Number of post-tensioned sections: 10 (1 @ 108', 3 @ 118', 4 @ 128', 2 @ 138')
Panel Installation Rate: Up to 13 panels/10-hour night closure (included pavement removal, base construction, panel installation, and temporary post-tensioning)
Features: Nighttime construction - lanes were closed to traffic after the evening rush-hour and opened to traffic before the morning rush-hour. First project to utilize threaded bars for temporary post-tensioning.
Project Length: 1,044 ft (two-lane pavement)
236 ft (single-lane pavement)
Panel Dimensions: Two-lane pavement: 24' x 9'-10" x 8"
Single-lane pavement: 12' x 9'-10" x 8"
Number of panels: 130
Number of post-tensioned sections: 10 (1 @ 108', 3 @ 118', 4 @ 128', 2 @ 138')
Panel Installation Rate: Up to 13 panels/10-hour night closure (included pavement removal, base construction, panel installation, and temporary post-tensioning)
Features: Nighttime construction - lanes were closed to traffic after the evening rush-hour and opened to traffic before the morning rush-hour. First project to utilize threaded bars for temporary post-tensioning.
Click here for a Project Summary
The fifth project demonstrating precast prestressed pavement technology was installed on a section of northbound Route 896 at US 40 in Newark, Delaware. Construction was limited to the hours of 7:30 pm - 5:30 am, in which time the existing pavement was removed, the base was prepared, the precast panels were installed, and temporary post-tensioning was applied prior to opening to traffic. The existing pavement exhibited severe ASR-related distress in the turn lanes, and required full reconstruction. Two left turn lanes and a right turn lane and thru lane were reconstructed with PPCP. The panels were installed over a pervious concrete base, which provided a workable platform to support the panels immediately after it was screeded to the proper grade and elevation. Threaded post-tensioning bars were used to sequentially post-tension the precast panels as they were installed such that temporary post-tensioning was provided at all times, even when the pavement was open to traffic prior to final post-tensioning.
