CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHT-WEIGHT CONCRETE AND THE EFFECTS OF THESE PROPERTIES ON THE DESIGN OF THE PAVEMENT STRUCTURE.

Details

• Creators:
  Ledbetter, William B. ; Perry, Ervin S. ; Houston, James T. ; Thompson, J. Neils
• Corporate Creators:
  University of Texas at Austin. Center for Highway Research
• Corporate Contributors:
  Texas. Highway Department ; United States. Bureau of Public Roads
• Subject/TRT Terms:
  • Lightweight concrete
  • Concrete pavements
• Publication/ Report Number:
  55-3F
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas ; United States
• Corporate Publisher:
  University of Texas at Austin. Center for Highway Research
• Abstract:
  In this study, critical mechanical properties of structural lightweight concrete were determined and utilized in the evaluation of a design of concrete pavements. Also presented are the critical mechanical properties resulting from unrestrained and restrained volume changes. Particular attention is given to compressive, direct tensile, and indirect tensile (split cylinder) strength at various ages of the concrete. The critical properties determined in this study indicate that concrete pavements can be designed with lightweight concrete and that expected performance in regard to the effects of warping stresses and pavement deflection will be better when lightweight concretes are used. However, the effects of restrained volume change of lightweight concrete on pavement performance can be detrimental if improper curing, or curing for too short a time, occurs. The need for further research into the effects of curing on lightweight concrete pavement performance is emphasized.
• Format:
  PDF
• Funding:
  4413-767 and 4413-828 ; project no. 3-8-63-55
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32762/dot_32762_DS1.pdf
• File Type:
  [PDF - 1.87 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:daceff82f00514f245cd4e1925bbfba8d99e18f26ff14419d60b7c0d78ee2016