NONSTANDARD STABILIZATION OF AGGREGATE ROAD SURFACES

A study of the performance of aggregate road surfaces treated with nonstandard stabilizers is described. Over 100 mi of road surfacing in a broad range of environments was treated with three general types of stabilizers: (a) pozzolans, (b) bioenzymes, and (c) an electrolyte. These stabilizers are byproducts of other industries and are generally unknown to road builders. When used appropriately, they have been found to be more effective than standard stabilizers. Factors considered in the evaluation included the aggregate gradation, types of failures reduced or eliminated, improvement in surfacing resilience, and economic benefits. The cost of application of these stabilizers was found to be comparable to the cost of aggregate replacement. The stabilization effected is permanent and long lasting. The benefits include substantial reductions in aggregate loss, reduced maintenance frequency, and improved road serviceability. Sources, recommended application percentages, and methods of application and mixing are described for each stabilizer. Several test or demonstration road sections are also discussed for each. Data on Clegg Impact Values obtained from these roads are presented. It is concluded that substantial economic and service benefits are to be realized from the use of these stabilizers.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1991/1291vol1/1291-072.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=NONSTANDARD+STABILIZATION+OF+AGGREGATE+ROAD+SURFACES&author=D.+Scholen&author=S.+Coghlan&publication_year=1991
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/030905715
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1291, Fifth International Conference on Low-Volume Roads, May 19-23, 1991, Raleigh, North Carolina, Volume 2. 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:
  • Scholen, Douglas E
  • Coghlan, Skip
• Conference:
  • International Conference on Low-Volume Roads, 5th, 1991, Raleigh, North Carolina, USA
• Publication Date: 1991

Media Info

• Features: Figures; References;
• Pagination: p. 285-293
• Monograph Title: Fifth International Conference on Low-Volume Roads May 19-23 1991, Raleigh, North Carolina, USA; volumes 1 and 2
• Serial:
  • Transportation Research Record
  • Issue Number: 1291
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Aggregate gradation; Aggregates; Conferences; Costs; Economic benefits; Electrolytes; Low volume roads; Measures of effectiveness; Performance evaluations; Pozzolan; Resilience (Materials); Soil stabilization; Surface course (Pavements); Test sections
• Uncontrolled Terms: Effectiveness; Stabilization
• Old TRIS Terms: Aggregate surfaced roads; Bioenzymes
• Subject Areas: Design; Economics; Finance; Geotechnology; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00611810
• Record Type: Publication
• ISBN: 030905715
• Files: TRIS, TRB, ATRI
• Created Date: Aug 31 1991 12:00AM