THEORIES OF MULTIPHASE MATERIALS APPLIED TO CONCRETE, CEMENT MORTAR, AND CEMENT PASTE

CONCRETE IS A MULTIPHASE COMPOSITE MATERIAL. AT A MACROSCOPIC LEVEL, IT CONSISTS OF PARTICLES OF AGGREGATE EMBEDDED IN A MATRIX OF CEMENT MORTAR, WHEREAS MORTAR CONSISTS OF PARTICLES OF SAND EMBEDDED IN A MATRIX OF CEMENT PASTE. AT A MICROSCOPIC LEVEL, CEMENT PASTE CONSISTS OF CEMENT GEL WITH A MORE OR LESS CONTINUOUS SYSTEM OF WATER-FILLED OR DRY CAPILLARY PORES. AT A SUBMICROSCOPIC LEVEL, CEMENT GEL IS A MIXTURE OF SEMI-AMORPHOUS INTERTWINED FIBROUS OR NEEDLE-SHAPED PARTICLES AND THIN CRUMBLED SHEETS AND FOILS WHICH FORM A CONTINUOUS MATRIX HAVING A CONTINUOUS SYSTEM OF MINUTE WATER-FILLED VOIDS, THE SO-CALLED GEL PORES. MOST AGGREGATES ARE ALSO MULTIPHASE, COMPOSITE MATERIALS WITH A PRONOUNCED POROSITY AND CONSISTING OF DIFFERENT CRYSTALLINE OR AMORPHOUS COMPONENTS. ON THE BASIS OF THEORIES OF MULTIPHASE MATERIALS, FORMULAS ARE PRESENTED FROM WHICH ELASTICITY, CREEP, SHRINKAGE, AND THERMAL AND ELECTRICAL CONDUCTIVITY CAN BE CALCULATED FOR CONCRETE, CEMENT MORTAR, AND CEMENT PASTE, WHEN THE MIX COMPOSITION AND THE PROPERTIES OF THE COMPONENT MATERIALS ARE KNOWN. /LCPC/A/

  • Corporate Authors:

    Intl Conf On Structure of Concr /UK

    ,    
  • Authors:
    • Hansen, C
  • Publication Date: 1966

Subject/Index Terms

Filing Info

  • Accession Number: 00212836
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Report/Paper Numbers: 8 pp
  • Files: TRIS
  • Created Date: May 13 1970 12:00AM