International Journal of Concrete Structures and Materials

  • 제4권1호
  • /
  • Pages.9-15
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  • 2010
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  • 1976-0485(pISSN)
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  • 2234-1315(eISSN)
한국콘크리트학회 (Korea Concrete Institute)
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Effect of Steam Curing on Concrete Piles with Silica Fume

  • Yazdani, N. (Dept. of Civil Engineering, UT Arlington) ;
  • F. Asce, M. Filsaime (Civil Engineer, PBS&J) ;
  • Manzur, T. (Dept. of Civil Engineering, UT Arlington)
  • 투고 : 2009.08.05
  • 심사 : 2010.05.17
  • 발행 : 2010.06.30
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초록

Silica fume is a common addition to high performance concrete mix designs. The use of silica fume in concrete leads to increased water demand. For this reason, Florida Department of Transportation (FDOT) allows only a 72-hour continuous moist cure process for concrete containing silica fume. Accelerated curing has been shown to be effective in producing high-performance characteristics at early ages in silica-fume concrete. However, the heat greatly increases the moisture loss from exposed surfaces, which may cause shrinkage problems. An experimental study was undertaken to determine the feasibility of steam curing of FDOT concrete with silica fume in order to reduce precast turnaround time. Various steam curing durations were utilized with full-scale precast prestressed pile specimens. The concrete compressive strength and shrinkage were determined for various durations of steam curing. Results indicate that steam cured silica fume concrete met all FDOT requirements for the 12, 18 and 24 hours of curing periods. No shrinkage cracking was observed in any samples up to one year age. It was recommended that FDOT allow the 12 hour steam curing for concrete with silica fume.

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참고문헌

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피인용 문헌

  1. Stable Failure-Inducing Micro-Silica Aqua Epoxy Bonding Material for Floating Concrete Module Connection vol.7, pp.11, 2015, https://doi.org/10.3390/polym7111520
  2. Performance Based Evaluation of Concrete Strength under Various Curing Conditions to Investigate Climate Change Effects vol.7, pp.8, 2015, https://doi.org/10.3390/su70810052