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Effect of Mixing and Placing in Hot Weather on Hardened Concrete Properties

  • Ham, Suyun (Department of Civil and Environmental Engineering, The University of Illinois at Urbana Champaign) ;
  • Oh, Taekeun (Department of Safety Engineering, The University of Incheon)
  • 투고 : 2013.01.08
  • 심사 : 2013.04.04
  • 발행 : 2013.06.30

초록

Portland cement concrete exposed to high temperatures during mixing, transporting, casting, finishing, and curing can develop undesirable characteristics. Applicable requirements for such the hot weather concrete differ from country to country and government agencies. The current study is an attempt at evaluating the hardened properties of the concrete exposed to hot weather in fresh state. First of all, this study reviews the current state of understanding and practice for hot weather concrete placement in US and then roadway sites with suspected hot weather concrete problems were investigated. Core samples were obtained from the field locations and were analyzed by standard resonance frequency analysis and the boil test. Based on the results, there does not appear to be systematic evidence of frequent cracking problems related to high temperature placement. Thus, the suspicious deteriorations which are referable to hot weather concreting would be due to other factors.

키워드

참고문헌

  1. ACI Committee 305. (2006). Specification for Hot Weather Concreting. FarmingtonHills,MI:American Concreting Institute.
  2. Ait-Aidera, H., Hannachia, N. E., & Mouret, M. (2007). Importance of W/C ratio on compressive strength of concrete in hot climate conditions. Building and Environment, 42, 2461-2465. https://doi.org/10.1016/j.buildenv.2006.05.003
  3. ASTM C215. (2008). Standard test method for fundamental transverse, longitudinal, and torsional frequencies of concrete specimens. Annual book of ASTM standards. West Conshohocken, PA: American Society for Testing and Materials.
  4. ASTM C642. (2006). Standard test method for density, absorption, and voids in hardened concrete. Annual book of ASTM standards. West Conshohocken, PA: American Society for Testing and Materials.
  5. Bergin, M., & Syed, C. (2002). Florida's hot-weather concreting specification. Concrete International, 24(5), 30-33.
  6. Kayyali, O. A. (1984). Effect of certain mixing and placing practices in hot weather on the strength of concrete. Building and Environment, 19(1), 53-59.
  7. Lee, M. (1989). Economical cooling of hot weather concrete. Concrete Construction, 34(9), 791-796.
  8. Malisch, W. (1990). Hot weather concreting tips. Concrete Construction, 35(6), 541-544.
  9. Mouret, M., Bascoul, A., & Escadeillas, G. (2003). Strength impairment of concrete mixed in hot weather: Relation to porosity of bulk fresh concrete paste and maturity. Magazine of Concrete Research, 55(3), 215-223. https://doi.org/10.1680/macr.2003.55.3.215
  10. Mustafa, M. A., & Yusof, K. M. (1991). Mechanical properties of hardened concrete in hot-humid climate. Cement and Concrete Research, 21(4), 601-613. https://doi.org/10.1016/0008-8846(91)90111-T
  11. Newman, A. J. (1971). Problems of concreting in arid climates. Overseas Building Note No. 139, overseas division. Watford, U.K.: Building Research Establishment.
  12. Ortiz, J., Aguado, A., Agullo, L., & Garcia, T. (2005). Influence of environmental temperatures on the concrete compressive strength: Simulation of hot and cold weather conditions. Cement and Concrete Research, 35, 1970-1979. https://doi.org/10.1016/j.cemconres.2005.01.004
  13. RILEM Commission 42-CEA. (1981). Properties of Set Concrete at Early Ages (State of the Art Report). Materials and Structures, 84(14), 399-460.
  14. Samarai, M., Popovics, S., & Malhotra, V. M. (1983). Effect of high temperatures on the properties of fresh concrete. Transportation Research Record, 924, 42-50.
  15. Schindler, A. K., & McCullough, B. F. (2002). The importance of concrete temperature control during concrete pavement construction in hot weather conditions. Transportation Research Board, 1813, 3-10. https://doi.org/10.3141/1813-01
  16. Schrader, E. K. (1987). Control heat for better concrete. Concrete Construction, 32(9), 767-770.
  17. Soroka, I. (1993). Concrete in hot environments. London, U.K.:E&FN Spon.
  18. Soudki, K. A., El-Salakawy, E. F., & Elkum, N. B. (2001). Full factorial optimization of concrete mix design for hot climates. Journal of Materials in Civil Engineering, 13(6), 427-433. https://doi.org/10.1061/(ASCE)0899-1561(2001)13:6(427)
  19. Turton, C. D. (1995). How hot and cold weather affect plastic concrete. Concrete, 29(3), 24-25.

피인용 문헌

  1. Performance Based Evaluation of Concrete Strength under Various Curing Conditions to Investigate Climate Change Effects vol.7, pp.8, 2013, https://doi.org/10.3390/su70810052
  2. Temperature Reduction of Concrete Pavement Using Glass Bead Materials vol.10, pp.1, 2013, https://doi.org/10.1007/s40069-016-0130-2
  3. Evaluation of Fire-Damaged Concrete: An Experimental Analysis based on Destructive and Nondestructive Methods vol.11, pp.3, 2013, https://doi.org/10.1007/s40069-017-0211-x