NATURE OF THE PASTE-AGGREGATE INTERFACE

THE RESEARCH WAS DESIGNED TO DETERMINE THE STRUCTURE DEVELOPED AT THE INTERFACE BETWEEN HARDENED PORTLAND CEMENT PASTE AND AGGREGATES, TO STUDY THE EFFECT OF COMMON VARIABLES ON THIS STRUCTURE, AND TO RELATE THE STRUCTURE TO PASTE-AGGREGATE BOND. THE TYPE OF STRUCTURE THAT DEVELOPS AT THE INTERFACE IS INDEPENDENT OF THE AGGREGATE TYPE, SURFACE ROUGHNESS, ORIENTATION OF THE INTERFACE, OR WATER-CEMENT RATIO. AT EARLY AGES, FRACTURE IS MAINLY IN THE VOID SPACE BETWEEN THE INTERFACIAL FILM AND THE MAIN BODY OF PASTE. AS THE INTERFACIAL VOID IS FILLED, FRACTURE MOVES PROGRESSIVELY TO THE IMMEDIATE VICINITY OF THE INTERFACE. ONCE THE VOID IS FILLED, FRACTURE IS PRIMARILY A FUNCTION OF THE PROPERTIES OF THE AGGREGATE. IN NO CASE DOES FRACTURE OCCUR AT THE TRUE PAT-AGGREGATE INTERFACE. /AUTHOR/

  • Supplemental Notes:
    • JHRP REPT NO 40
  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  United States  47907-1284
  • Authors:
    • Hadley, D W
  • Publication Date: 1972-11

Media Info

  • Pagination: 186 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00214216
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 30 1973 12:00AM