THE WACO PONDING PROJECT

This report presents results of field studies conducted between 1957 and 1972 on the effectiveness of ponding and lime stabilization of clay subgrade to minimize volume change beneath portland cement concrete pavements. Potential vertical rise (PVR) was calculated to identify sections in need of ponding, and the relationship of PVR to roughness and heaving of pavement is presented. The thickness of asphaltic concrete overlay required for pavement over untreated subgrade is compared to that required for concrete pavement over lime-stabilized subgrade, some of which was ponded. Although a study of underdrains was not intended as part of this project, it became noticeable that the result of connecting perforated underdrains to ditch drop inlets was to increase heaving and overlay repair thicknesses. A method for determining desired moisture content is presented, and it correlates fairly well with moisture contents obtained from below pavement after several years.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/560/560-004.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=THE+WACO+PONDING+PROJECT&author=R.+McKinney&author=J.+Kelly&author=C.+McDowell&publication_year=1976
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309024706
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Lime and Lime-Fly Ash Stabilization. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • McKinney Jr, Robert L
  • Kelly, James E
  • McDowell, Chester
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1976

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 31-43
• Monograph Title: Stabilization
• Serial:
  • Transportation Research Record
  • Issue Number: 560
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Asphalt concrete; Calcium oxide; Clay; Drainage; Lime cement; Moisture content; Overlays (Pavements); Ponding; Portland cement; Portland cement concrete; Soil stabilization; Soil water; Subdrains; Subgrade (Pavements); Thickness; Volume
• Geographic Terms: Waco (Texas)
• Subject Areas: Construction; Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00133998
• Record Type: Publication
• ISBN: 0309024706
• Files: TRIS, TRB
• Created Date: Jul 22 1977 12:00AM