CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT CONCRETE AND THEIR EFFECTS ON PAVEMENT DESIGN

THIS STUDY EXAMINES THE CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT CONCRETE WHICH MIGHT AFFECT THE PERFORMANCE OF CONCRETE PAVEMENTS. THE PROPERTIES RESULTING FROM UNRESTRAINED AND RESTRAINED VOLUME CHANGE ARE PRESENTED, WITH PARTICULAR ATTENTION GIVEN TO COMPRESSIVE, DIRECT TENSILE, AND INDIRECT TENSIL /SPLIT CYLINDER/ STRENGTHS 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 FROM THE EFFECTS OF WARPING STRESSES AND PAVEMENTS DEFLECTION WILL BE BETTER THAN THAT OF PAVEMENTS MADE WITH REGULAR WEIGHT CONCRETE. 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 ON THE EFFECTS OF CURING ON LIGHTWEIGHT CONCRETE PAVEMENT PERFORMANCE IS EMPHASIZED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1966/112/112-002.pdf
• Supplemental Notes:
  • 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:
  • Ledbetter, William B
  • Perry, Ervin S
  • Houston, James T
  • Thompson, J Neils
• Publication Date: 1966

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 25-45
• Monograph Title: Concrete pavement design
• Serial:
  • Highway Research Record
  • Issue Number: 112
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Age; Compressive strength; Concrete curing; Concrete pavements; Deflection; Durability; Lightweight concrete; Mechanical properties; Pavement design; Pavements; Performance; Structural materials; Tensile strength; Volume changes; Warpage
• Old TRIS Terms: Pavement deflection; Warping (Concrete pavements)
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00205453
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 18 1994 12:00AM