PROPOSED EVALUATION OF BASE MATERIALS FOR DRAINABILITY

Base materials are normally selected to achieve maximum density and possess sufficient stiffness and strength to carry traffic loads. Long-time concerns about the poor drainability of these materials have recently prompted the highway materials community to address this problem. The main objectives of the research reported here were to evaluate the drainability of base materials used in Texas and to propose and evaluate modified materials that could improve drainability while maintaining stiffness and strength levels. Drainability is evaluated on the basis of the permeability coefficient and water retention tests. The water retention test was found to be a much easier test to perform than the permeability test and is believed to be much more directly related to the drainability of the compacted base than the permeability coefficient. Alternative materials evaluated consisted of open-graded bases and cement-stabilized gravel. The results of the present study indicate that cement-stabilized gravel is the best alternative to achieve high stiffness and strength and at the same time minimize water retention capacity.

• Record URL:
  • https://doi.org/10.3141/1596-10
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=PROPOSED+EVALUATION+OF+BASE+MATERIALS+FOR+DRAINABILITY&author=V.+Tandon&author=M.+Picornell&publication_year=1997
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061733
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1596, Pavements and Structures Monitoring, Pavement Instrumentation, and Drainage Systems Evaluation.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Tandon, Vivek
  • Picornell, M
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 62-69
• Serial:
  • Transportation Research Record
  • Issue Number: 1596
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Cement treated soils; Drainage; Materials; Open graded aggregates; Pavement base course; Performance; Permeability coefficient; Stiffness; Strength of materials
• Uncontrolled Terms: Cement treated bases; Water retention
• Old TRIS Terms: Materials performance
• Subject Areas: Geotechnology; Highways; Hydraulics and Hydrology; Materials; I42: Soil Mechanics;

Filing Info

• Accession Number: 00743601
• Record Type: Publication
• ISBN: 0309061733
• Files: TRIS, TRB, ATRI
• Created Date: Dec 9 1997 12:00AM