Laboratory Investigation of Rigid Polyurethane Foams for Repair of PCC Pavements

Laboratory evaluations were performed on several commercially available, rigid polyurethane foam (RPF) products to determine the suitability of using these materials for stabilization of base materials or as base replacement materials for full-depth portland cement concrete (PCC) pavement repairs. RPF specimens were prepared and tested to evaluate the compressive strength, reactivity, and density of several foam products. Additional tests were performed to determine the influence of aggregate size on the compressive strength and reactivity of the RPF materials as binders for aggregate. Results indicate that high-density RPF materials alone can provide compressive strengths similar to well-compacted soil or aggregate and may be applicable as base replacement materials. Results also indicate that further work is necessary to improve stone-on-stone contact and to reduce the amount of RPF necessary to create foam-aggregate composites for base stabilization. From these tests, field tests were recommended to verify that RPF materials generate sufficient strength to resist consolidation and prevent failure under traffic loads when placed in full-depth PCC pavement repairs.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16762797
• Authors:
  • Priddy, Lucy Phillips
  • Freeman, Reed B
  • Newman, J Kent
  • Mejias-Santiago, Mariely
• Publication Date: 2007-1

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 124-135
• Serial:
  • International Journal of Pavements
  • Volume: 6
  • Issue Number: 1
  • Publisher: University of Mississippi, University
  • ISSN: 1676-2797

Subject/Index Terms

• TRT Terms: Aggregates; Airport runways; Base course (Pavements); Compressive strength; Pavement maintenance; Polyurethane foams; Portland cement concrete; Rigid pavements
• Subject Areas: Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01126293
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 13 2009 2:58PM