콘크리트학회논문집 (Journal of the Korea Concrete Institute)

  • 제16권1호
  • /
  • Pages.130-138
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  • 2004
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  • 1229-5515(pISSN)
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  • 2234-2842(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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Effects of Cement Type and Fly Ash on the Sulfate Attack Using ASTM C 1012

  • Ahn Nam-Shik (Dept. of Architectural Engineering, Hongik University)
  • 발행 : 2004.02.01
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초록

The primary factors that affecting concrete sulfate resistance are the chemistry of the Portland cement and the chemistryandreplacementlevelofmineraladmixtures. In order to investigate the effect of those on the sulfate attack the testing program involved the testing of several different mortar mixes using the standardized test, ASTM C 1012. four different cements were evaluated including one Type I cement, two Type I-II cements, and one Type V cement. Mortar mixes were also made with mineral admixtures as each cement was combined with three different types of mineral admixtures. One Class F fly ash and one Class C fly ash was added in various percent volumetric replacement levels. The expansion measurements of mortar bars were taken and compared with expansion criteria recommended from past experience to investigate the effect of each factor.

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참고문헌

  1. Tikalsky, P. J. and Carrasquillo, R. L., 'The Effect of Fly Ash on the Sulfate Resistance of Concrete,' Research Report 481-5, Center for Transportation Research, The University of Texas at Austin, 1989, pp.15-16
  2. Bellport, B. P., 'Combating Sulfate Attack on Concrete on Bureau of Reclamation Projects,' Performance of Concrete: Resistance of Concrete to Sulphate and Other Environmental Conditions, E.G. Swenson, ed., University of Toronto Press, Canada, pp.77-92
  3. Wang, G. S. and Poole, T., 'Sulfate Resistance of Mortars Using Portland Cement and Blends of Portland Cement and Pozzolan or Slag,' Technical Report SL-88-34, U.S. Dept. of Army, 1988, pp.27-29
  4. American Society for Testing and Materials, 'Standard Specification for Portland Cement,' C 150, ASTM, Philadelphia, pp.92-95
  5. American Society for Testing and Materials, 'Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete,' C 618, ASTM, Philadelphia, pp.298-302
  6. American Society for Testing and Materials, 'Standard Specification for Standard Sand,' C778, ASTM, Philadelphia, pp.361-366
  7. American Society for Testing and Materials, 'Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution,' C 1012, ASTM, Philadelphia, pp.496-500
  8. American Society for Testing and Materials, 'Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2-in. or [50-mm] Cube Specimens),' CI09, ASTM, Philadelphia, pp.47-50