Journal of the Korea Institute of Building Construction (한국건축시공학회지)

The Korean Institute of Building Construction (한국건축시공학회)
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Transition Analysis of Friction Factor According to Pumping Pressure in Pumping Test Using High Strength Concrete for High-rise Buildings

  • Kwon, Hae-Won (Department of Architectural Engineering, Pusan National University) ;
  • Kim, Young-Su (Department of Architectural Engineering, Pusan National University)
  • Received : 2013.03.05
  • Accepted : 2013.04.01
  • Published : 2013.08.20
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Abstract

In high-rise buildings, high-strength concrete is widely used to reduce the section of structure members under axial load. Also, the price increase of materials is very important item in the high-rise buildings. Especially, concrete used high-pressure pump due to consecutive structural assembly. Unlike slump type of ordinary concrete, high strength concrete has different properties of concrete pumping due to viscosity. However, there have been no Korean studies on the pumping properties of high strength concrete. Therefore, this paper measures the friction factor of high strength concrete with changes in the pressure of concrete pumping. We analyzed the trends of the friction factor based on changes in the pressure of concrete pumping, and then calculated the quantity of concrete deposited for each specified concrete strength and location of placement. After comparing these results with the quantity of concrete deposited measured in field, we evaluated the pumping properties of high strength concrete. Through the tests and the review, we attempt to suggest some basic information for the In-Situ application of high strength concrete.

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References

  1. Ji SW, Seo CH. Development of concrete pumping technology in high-rise buildings. Special issue of Architectural Institute of Korea. 2006 Apr;50(4):66-71.
  2. Kim JW, Kim SM, Park YH. The world's longest distance ultra-high strength concrete pumping monitoring and integrated risk control technology development. Korea Journal of Construction Engineering and Management. 2010 Aug;11(4):30-3.
  3. Kwon HW, Bae YK, Lee JS, Kim SI, Kim HS, Lee JS. The experimental study on the coefficient of friction change tendency which it follows in kinds of concrete strength and pumping pressure grade. Proceedings of the 16th Spring of Korea Institute of Building Construction. 2009 May 23; Seoul (Korea). Seoul (Korea): Korea Institute of Building Construction; 2009. p. 69-73.
  4. Kim SH, Ji SW, Seo CH. An experimental study on the characteristics of internal pressure on pipeline in high pressure pumping for high-rise building. Journal of Architectural Institute of Korea. 2007 Dec;23(12):149-56.
  5. Kim SG, Kim SH, Ji SW, Seo CH, Kim OJ, Lee DB. An experimental study on the characteristics of internal pressure of pipe in high pressure pumping. Proceedings of Architectural Institute of Korea. 2007 October 26-27; Chungbuk (Korea). Seoul (Korea): Architectural Institute of Korea; 2007. p. 671-4.
  6. Banfill PFG. Additivity effects in the rheology of fresh concrete containing water-reducing admixtures. Journal of Construction and Building Materials. 2011 Jun;25(6) :2955-60. https://doi.org/10.1016/j.conbuildmat.2010.12.001
  7. Jacobsen S, Haugan L, Hammer TA, Kalogiannidis E. Flow conditions of fresh mortar and concrete in different pipes. Journal of Cement and Concrete Research. 2009 Nov;39(11):997-1006. https://doi.org/10.1016/j.cemconres.2009.07.005
  8. American Concrete Institute Committee. ACI manual of concrete practice. Farmington Hills (MI): American Concrete Institute; 2012. 304.2R-96. p. 1-25
  9. Seo I, Lee HS, Park HG, Kim WJ. An experimental study on correlation between rheological parameter of picked mortar and fluidity of concrete from 30 to 150 MPa. Journal of Architectural Institute of Korea. 2009 Sep;25(9):93-100.
  10. Zhuguo Li. State of workability design technology for fresh concrete in Japan. Journal of Cement and Concrete Research. 2007 Sept;37(9):1308-20. https://doi.org/10.1016/j.cemconres.2007.05.001