Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
권호 표지
DOI QR코드

DOI QR Code

Sulfate Attack According to the Quantity of Composition of Cement and Mineral Admixtures

시멘트 화학성분(C3A)과 무기 혼화재에 따른 황산염 침투 특성

  • Ahn, Nam-Shik (Department of Architectural Engineering, Sejong University) ;
  • Lee, Jae-Hong (Department of Architectural Engineering, Sejong University) ;
  • Lee, Young-Hak (Department of Architectural Engineering, Kyung Hee University)
  • Received : 2011.06.07
  • Accepted : 2011.09.26
  • Published : 2011.09.28
Download PDF
⟨ Previous Next ⟩

Abstract

The primary factors affecting concrete sulfate resistance are the chemical composition of the Portland cement, and the chemistry and quantity of mineral admixtures. To investigate the effect of those on the sulfate attack, the testing program involved several different mortar mixes using the standardized test, ASTM C1012. 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, one Class C fly ash, and one ground granulated blast furnace slag (GGBFS) were added in various percent volumetric replacement levels. Expansion measurements were taken and investigated with the expansion criteria recommended by ASTM.

경화 콘크리트의 물성에 있어서 황산염 저항에 가장 큰 영향을 미치는 두 요소로서 포틀랜드 시멘트의 화학적 성분과 그 양을 들 수 있다. 본 연구에서는 황산염 침투에 대한 영향을 고찰하기 위하여 ASTM C1012의 규정을 바탕으로 여러 종류의 모르타르를 제작하여 실험을 수행하였다. 본 연구에서 황산염 침투에 대한 영향을 평가하기 위해 TYPE I, 두 가지의 TYPE I-II 시멘트와 TYPE V의 시멘트 등 네 가지 모르타르를 사용하여 실험을 수행하였다. 또한 각각의 모르타르 혼합물들에 사용된 무기혼합물의 경우에도 세 가지 종류를 사용하였다. F타입 플라이애시와 C타입 플라이애시, 고로슬래그를 부피비를 기준으로 대체하여 사용하였으며, 실험을 통한 콘크리트의 팽창률을 ASTM 규정의 권장 팽창 기준을 바탕으로 비교 분석하였다.

Keywords

References

  1. ASTM International. ASTM C1012/C1012M-10 Standard Test Method for Length Change of Hydraulic-Cement Mortars Exposed to a Sulfate Solution. American Society for Testing and Materials; 2010
  2. Han MC. Effect of Mineral Admixture Types on the Engineering Properties and the Drying Shrinkage of the Concrete. Journal of Korea Institute of Building Construction. 2009 Oct;9(5):121-7. https://doi.org/10.5345/JKIC.2009.9.5.119
  3. Park MS, Kim YS. A Study on the Sulfate Attack Resistance of Concrete Using EAF Slag as Fine Aggregate. Journal of Korea Institute of Building Construction. 2009 Jan;9(1):81-7. https://doi.org/10.5345/JKIC.2009.9.1.081
  4. Kim SB, Song HW, Park SG, Park LH. A Study on Properties Engineering of Concrete Using Natural Inorganic Minerals. Proceeding of the Korea Institute of Building Construction; 2005 May: The Korea Institute of Building Construction; 2005. p. 81-4.
  5. ASTM International. ASTM C150 Standard Specification for Portland Cement. American Society for Testing and Materials; 2008.
  6. Ismail M., Ali M, El-Miligy A, and Afifi M, Acid resistance of polyester-impregnated modified cement mortar, Journal of Applied Polymer Science. 1999;73(5):685-93 https://doi.org/10.1002/(SICI)1097-4628(19990801)73:5<685::AID-APP9>3.0.CO;2-7
  7. Ismail M. and El-Hemaly S, Durability properties of y-radiation-induced polymer-modified cement mortar. I. Effect of sodium sulfate, Journal of Applied Polymer Science. 1991;42(4):993-1000 https://doi.org/10.1002/app.1991.070420413
  8. Pushpa B, Finishing of textile materials, Journal of Applied Polymer Science. 2002;83(3):631-59 https://doi.org/10.1002/app.2262
  9. Bellport BP. Combating sulfate attack on concrete on bureau of reclamation projects. Swenson EG, Editor. Performance of concrete: resistance of concrete to sulphate and other environmental conditions. Toronto (Canada): University of Toronto Press; 1968. p. 77-92.
  10. Tikalsky PJ, Carrasquillo RL. The Effect of Fly Ash on the Sulfate Resistance of Concrete. The Center for Transportation Research. The University of Texas at Austin, 1989 Aug. 306 p.
  11. Wang GS, Poole T. Sulfate Resistance of Mortars Using Portland Cement and Blends of Portland Cement and Pozzolan or Slag. Department of Army Technical Report. 1988.
  12. ASTM International. ASTM C618 Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use as a Mineral Admixture in Portland Cement Concrete. American Society for Testing and Materials; 2009.
  13. ASTM International. ASTM C490 Standard Practice for Use of Apparatus for the Determination of Length Change of Hardened Cement Paste, Mortar, and Concrete. American Society for Testing and Materials; 2010.
  14. ASTM International. ASTM C778 Standard Specification for Standard Sand. American Society for Testing and Materials; 2006.

Cited by

  1. Properties of carbonated green construction materials by changes in processing conditions vol.23, pp.3, 2013, https://doi.org/10.6111/JKCGCT.2013.23.3.152
  2. Carbonation Behavior of Fly Ash with Circulating Fluidized Bed Combustion (CFBC) vol.52, pp.2, 2015, https://doi.org/10.4191/kcers.2015.52.2.154
  3. Properties of non-cement mortars with small addition of alkali activator using fly ash and fused waste slag vol.25, pp.6, 2015, https://doi.org/10.6111/JKCGCT.2015.25.6.257
  4. Improvement in mechanical properties by supercritical carbonation of non-cement mortar using fly ash and blast furnace slag vol.15, pp.6, 2014, https://doi.org/10.1007/s12541-014-0461-3
  5. Carbonization of Coal-Fly Ash Containing High CaO Compound vol.50, pp.1, 2013, https://doi.org/10.4191/kcers.2013.50.1.18
  6. Property enhancement of lightweight aggregate by carbonation processing vol.22, pp.5, 2012, https://doi.org/10.6111/JKCGCT.2012.22.5.254
  7. Carbonation of Circulating Fluidized Bed Combustion Fly Ash with Hybrid Reaction vol.55, pp.2, 2018, https://doi.org/10.4191/kcers.2018.55.2.07