ULTRA HIGH STRENGTH CONCRETE

A COMMISSION WAS ESTABLISHED ON METHODS OF ACHIEVING HIGH- STRENGTH CONCRETE TO FIND OUT WHETHER THE EFFECTIVE COMPRESSIVE STRENGTH OF CONCRETE CAN BE SUBSTANTIALLY INCREASED SO THAT PRESTRESSED CONCRETE MAY BECOME NOT MERELY AN ECONOMIC STRUCTURAL MATERIAL OF ATTRACTIVE CHARACTERISTICS, BUT A MATERIAL OF HIGH SPECIFIC STRENGTH AS WELL. THE FOLLOWING MEANS OF COMPACTION ARE DISCUSSED' COMPRESSION OF CEMENT PASTE, COMPRESSION COMBINED WITH VIBRATION, VERY-HIGH-FREQUENCY VIBRATION AND GRADING OF CEMENT. IMPROVEMENT OF THE CEMENT-AGGREGATE BOND IS DISCUSSED IN RELATION TO CEMENTITIOUS AGGREGATES, SILICA- LIME BOND, AND SYNTHETIC-RESIN CONCRETES. THE MEANS BY WHICH TRIAXIAL STRESS MAY BE INDUCED IN CONCRETE ARE DISCUSSED. METHODS FOR PRODUCTION OF ULTRA HIGH STRENGTH ARE REVIEWED. THE FOLLOWING APPLICATIONS ARE SUGGESTED WHERE AN INCREASE IN STRENGTH WOULD GIVE ADVANTAGE' /1/ THE EXTENSION OF USEFUL SPAN OF CERTAIN EXISTING TYPES OF BEAM, /2/ TRIANGULATED STRUCTURES FOR LARGE SPANS INCORPORATING TUBULAR MEMBERS, /3/ THE MANUFACTURE OF RODS OF PRESTRESSED CONCRETE FOR USE AS REINFORCEMENT, AND /4/ IN SIMPLE COMPRESSION MEMBERS.

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  • Supplemental Notes:
    • Vol 12, No 1, PP 53-59
  • Authors:
    • HARRIS, A J
  • Publication Date: 1967-2

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  • Accession Number: 00212384
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 23 1994 12:00AM