CRITICAL MECHANICAL PROPERTIES OF STRUCTURAL LIGHTWEIGHT CONCRETE AND THE EFFECT OF THESE PROPERTIES ON THE DESIGN OF THE PAVEMENT STRUCTURE

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 INREGARD 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 FUTHER RESEARCH INTO THE EFFECTS OF CURING ON LIGHTWEIGHT CONCRETE PAVEMENT PERFORMANCE IS EMPHASIZED. /AUTHOR/

  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Ledbetter, W B
    • Perry, E S
    • Houston, J T
    • Thompson, J N
  • Publication Date: 1965-1

Subject/Index Terms

Filing Info

  • Accession Number: 00212366
  • Record Type: Publication
  • Report/Paper Numbers: Res Rept No 55-3f 82 pp
  • Files: TRIS
  • Created Date: May 25 1994 12:00AM