RESISTANCE TO FREEZING AND THAWING CYCLES AND SCALING RESISTANCE OF VERY HIGH EARLY STRENGTH CONCRETE

A very high early strength (VHES) Portland cement-based concrete can be used to prevent long closures of highway lanes by completing any necessary repairs overnight. This technology has been embraced by several Departments of Transportation (DOT), including those in areas where the concrete will be subjected to freezing and thawing cycles, even though the technique was first used in California (where the concrete is typically not subjected to freezing and thawing). Flexural strength of VHES concrete is the critical parameter to permit traffic flow without damage to the concrete. This article presents data showing that it is possible to attain the necessary strength and achieve adequate resistance to freezing and thawing cycles. The evidence presented includes accelerated testing using ASTM C 666, Procedure A, and scaling resistance using ASTM C 672. For scaling resistance of VHES concrete, adequate air-entrainment is necessary, but the requirements for the air-void system are less stringent than those for conventional concrete. The authors present additional evidence showing that VHES concrete of low w/c (water to cement ratio) can be durable with larger than acceptable spacing factor levels or without air entrainment.

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  • Corporate Authors:

    ASTM International

    100 Barr Harbor Drive
    West Conshohocken, PA  United States  19428-2959
  • Authors:
    • Kurtz, M A
    • Constantiner, D
  • Publication Date: 2003-12

Language

  • English

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Filing Info

  • Accession Number: 00986569
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 22 2005 12:00AM