EARLY DISTRESS IN CONCRETE PAVEMENTS

Concerns over roadways exhibiting distress at ages earlier than expected led the Federal Highway Administration to initiate a study to examine pavements in the Midwest. The goal was to reach an early consensus as to the mechanism of the distress, and recommend corrective actions to prevent future occurrences until additional needed research could be conducted. This report's recommendations must be taken within the context discussed in the text. Specific recommendations include advice on returning to the basic methods of concrete construction, and avoiding the use of known materials that contribute to early distress. Concrete components discussed include portland cement, fly ash, and aggregates. Also discussed are mixing and placing procedures that may detrimentally affect the strength and durability qualities of concrete through poor uniformity, workability, and air entrainment.

• Corporate Authors:

  University of New Hampshire, Durham

  Department of Civil Engineering
  Durham, NH  United States  03824

  New Hampshire Department of Transportation

  John O. Morton Building, 7 Hazen Drive
  Concord, NH  United States  03302-0483

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Gress, D
• Publication Date: 1997-1-9

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 61 p.

Subject/Index Terms

• TRT Terms: Admixtures; Air entrainment; Concrete; Concrete aggregates; Concrete mixing; Concrete pavements; Concrete placing; Defects; Durability; Fly ash; Pavement distress; Pavements; Portland cement; Recommendations; Standardization; Strength of materials; Workability
• Uncontrolled Terms: Concrete strength
• Subject Areas: Construction; Highways; Materials; Pavements; Research; I23: Properties of Road Surfaces; I32: Concrete; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 00736871
• Record Type: Publication
• Report/Paper Numbers: FHWA-SA-97-045, Final Report
• Contract Numbers: DTFH71-96-TE034-NH-08
• Files: TRIS, USDOT, STATEDOT
• Created Date: May 16 1997 12:00AM