STRENGTH VERSUS BAG SPECIFICATIONS

THE CONTROVERSY BETWEEN STRENGTH AND BAG SPECIFICATIONS FOR READY-MIXED CONCRETE IS DISCUSSED. THE BAG SPECIFICATION PROVIDES A RECIPE GIVING THE EXACT QUANTITIES TO BE USED IN BATCHING THE MATERIALS FOR CONCRETE. STRENGTH SPECIFICATION STATES THE REQUIRED PERFORMANCE QUALITIES NEEDED IN BOTH THE PLASTIC AND HARDENED CONCRETE, STRENGTH, SLUMP, AIR CONTENT, LEAVING THE MEANS BY WHICH THESE QUALITIES ARE ACHIEVED TO THE SKILL AND EXPERIENCE OF THE READY MIX SUPPLIER. THE TWO METHODS ARE SIMILAR IN THAT BOTH STIPULATE SLUMP, AIR CONTENT AND MAXIMUM SIZE OF AGGREGATE. THEY DIVERGE, HOWEVER, IN THE METHOD OF CONTROLLING THE QUALITY OF THE PASTE. THE BAG SPECIFICATION USES A CEMENT FACTOR WHILE THE OTHER USES STRENGTH. EXCELLENT CONCRETE HAS BEEN ACHIEVED BY BOTH TECHNIQUES AND THE SECRET OF QUALITY CONCRETE STILL LIES WITH THE READY MIX PRODUCER.

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  • Supplemental Notes:
    • Vol 10, No 8, PP 299-301
  • Publication Date: 1965-8

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  • Accession Number: 00212405
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 9 1994 12:00AM