SUMMARY OF WORKSHOP SESSION ON RIGID PAVEMENTS--ALBANY, NEW YORK
This paper summarizes the work session on rigid pavements held at the 1973 Federal Highway Administration workshop on Water in Pavements in Albany, New York. More participants were interested in design criteria to eliminate water in pavements than in the corrective measures to be employed on existing facilities. It was concluded that at least a few things should be avoided at all costs, including hurried construction and the compromise on specifications of materials because of the massive size of a project versus the availability of suitable materials. It was suggested that shorter joint spacing can cure or decrease blowups and water infiltration. A number of sealants were discussed, including neoprene and rubberized asphalt. It was decided that a pervious subbase is the best way to control the pavement water; sealants will not do the job. This pervious subbase should eliminate the pumping introduction of incompressibles that contribute to blowup. Because it was generally conceded that underdrains are effective, it was suggested that each recommended field location for underdrain placement be studied and that recommendations be made for the type of underdrain and filter media to be installed so that they would fit the existing conditions. Some of the problems of underdrain installation inherent to slip-form paving were discussed. Longitudinal joint tapes are economical, but their success seems to be tied to seasonal time of paving and early traffic. One of the problems with daylighting the subgrade gravel is the lack of attention of maintenance forces to keep the exposed surface clean and unplugged by construction or maintenance debris.
- This paper was presented at a 1973 workshop on Water in Pavements sponsored by the Federal Highway Administration, held in Albany, New York.
Washington, DC United States 20590
- Copleston, J
- Publication Date: 1973
- Pagination: p. 211-213
- TRT Terms: Asphalt rubber; Drainage; Groundwater; Infiltration; Joint sealers; Neoprene; Pavement joints; Pavements; Rigid pavements; Slip form paving; Spacing; Subdrains; Subgrade (Pavements); Water; Workshops
- Subject Areas: Design; Highways; Hydraulics and Hydrology; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I26: Water Run-off - Freeze-thaw;
- Accession Number: 00792256
- Record Type: Publication
- Files: TRIS, USDOT
- Created Date: May 4 2000 12:00AM