Computers and Concrete

  • 제6권1호
  • /
  • Pages.19-40
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  • 2009
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Modified heat of hydration and strength models for concrete containing fly ash and slag

  • Ge, Zhi (Department of Construction Management and Engineering, North Dakota State University) ;
  • Wang, Kejin (Department Civil, Construction, and Environmental Engineering, Iowa State University)
  • 투고 : 2008.01.11
  • 심사 : 2009.01.15
  • 발행 : 2009.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes the development of modified heat of hydration and maturity-strength models for concrete containing fly ash and slag. The modified models are developed based on laboratory and literature test results, which include different types of cement, fly ash, and slag. The new models consider cement type, water-to-cementitious material ratio (w/cm), mineral admixture, air content, and curing conditions. The results show that the modified models well predict heat evolution and compressive strength development of concrete made with different cementitious materials. Using the newly developed models, the sensitivity analysis was also performed to study the effect of each parameter on the hydration and strength development. The results illustrate that comparing with other parameters studied, w/cm, air content, fly ash, and slag replacement level have more significantly influence on concrete strength at both early and later age.

키워드

참고문헌

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피인용 문헌

  1. Influence of cement fineness and water-to-cement ratio on mortar early-age heat of hydration and set times vol.50, 2014, https://doi.org/10.1016/j.conbuildmat.2013.10.011
  2. Strength evaluation of concrete with fly ash and GGBFS as cement replacing materials vol.3, pp.3, 2015, https://doi.org/10.12989/acc.2015.3.3.223
  3. Hydration properties of cement pastes containing high-volume mineral admixtures vol.7, pp.1, 2010, https://doi.org/10.12989/cac.2010.7.1.017
  4. Full-scale test of the hydration heat and the curing method of the wet joints of a precast segmental pier of a bridge vol.21, pp.3, 2017, https://doi.org/10.1080/19648189.2015.1119063