IMPERMEABILITY OF CONCRETE

PERMEABILIDAD DE HORMIGONES

PERMEABILITY TESTS WERE CARRIED OUT ON CONCRETE SAMPLES OF VARIOUS DIMENSIONS, PREPARED WITH PORTLAND AND POZZOLANIC CEMENT AND AGGREGATES SUCH AS SILICEOUS SAND, PEBBLES AND CRUSHED GRANITIC STONE. TO INVESTIGATE AIR ENTRAINMENT IN CONCRETE, RESIN DILUTED IN WATER WAS USED AS ADMIXTURE. SEVERAL MIX DESIGN FORMULAE WERE TRIED OUT, AND THE PERMEABILITY TESTS WERE CONDUCTED AT 28 AND 90 DAYS. THE TEST CONSISTED IN MAINTAINING THE WATER PRESSURE CONSTANT FOR A CERTAIN PERIOD OF TIME, THEN IN INCREASING IT PROGRESSIVELY. IT WAS FOUND THAT THE INCREASE IN PERMEABILITY WHEN THE WATER/CEMENT RATIO INCREASES, IS GREATER FOR W/C RATIOS EXCEEDING 0,50. THE USE OF POZZOLANIC CEMENT INCREASES IMPERMEABILITY AS LONG AS CURING IS EFFECTIVE. AIR ENTRAINMENT LEADS TO A MARKED DECREASE IN PERMEABILITY.

  • Availability:
  • Authors:
    • WAINSZTEIN, M
    • BATIC, O
    • SOTA, J
  • Publication Date: 1976-1

Language

  • Spanish

Media Info

  • Pagination: 7-16
  • Serial:
    • REV ING
    • Issue Number: 92
    • ISSN: 0484-7113

Subject/Index Terms

Filing Info

  • Accession Number: 01299236
  • Record Type: Publication
  • Source Agency: Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)
  • Files: ITRD
  • Created Date: Nov 21 2010 7:01AM