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Behaviour of cement concrete at high temperature

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Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The paper presents the impact of high temperature on cement concrete. The presented data have been selected both from the author’s most recent research and the published literature in order to provide a brief outline of the subject. The effect of a high temperature on concrete covers changes taking place in cement paste, aggregates, as well as the interaction of these two constituents, that result in changes of mechanical and physical characteristics of concrete. This paper presents the effects of a high temperature on selected physical properties of concrete, including colour change, thermal strain, thermal strains under load, and transient thermal strains. In addition, changes to mechanical properties are discussed: stress-strain relationship, compressive strength, and modulus of elasticity. Moreover, the phenomenon of explosive spalling and the main factors that affect its extent are analysed in light of the most recent research.
Rocznik
Strony
145--154
Opis fizyczny
Bibliogr. 35 poz., rys., tab.
Twórcy
autor
  • Institute of Building Materials and Structures, Cracow University of Technology, 24 Warszawska St., 31-155 Kraków, Poland
Bibliografia
  • [1] Fire Design of Concrete Structures - Materials, Structures andModelling, Bulletin 38, Fédération Internationale du Béton, p. 97, Lausanne, 2007.
  • [2] G.A. Khoury, “Compressive strength of concrete at high temperatures : a reassessment”, Magazine of Concrete Research 44 (161), 291-309 (1992).
  • [3] EN 1992-1-2: Eurocode 2 - Design of Concrete Structures. Part 1.2: General Rules - Structural Fire Design, p. 97, December, 2004.
  • [4] R.F. Feldman and P.J. Sereda, “A model for hydrated Portland cement paste as deduced from sorption-length change and mechanical properties”, Materials and Structures 1, 509-519 (1968).
  • [5] J. Piasta, “Heat deformation of cement phases and microstructure of cement paste”, Materials and Structures 17 (102) 415-420 (1989).
  • [6] G. Verbeck and L.E. Copeland, “Some physical and chemical aspects of high pressure steam curing”, Menzel Symposium onHigh Pressure Steam Curing ACI SP-32, 1-131 (1972).
  • [7] M. Castellote, C. Alonso, C. Andrade, X. Turrillasa, and J. Campoc, “Composition and microstructural changes of cement pastes upon heating, as studied by neutron diffraction”, Cementand Concrete Research 34, 1633-1644 (2004).
  • [8] G.A. Khoury, G.P.E. Sullivan, and B.N. Grainger, “Strain of concrete during first heating to 600◦C under load”, Magazineof Concrete Research 37 (133) 195-215 (1985
  • [9] I. Hager, “Behaviour of high performance concretes at high temperature - evolution of mechanical properties”, PhD Thesis, Ecole Nationale des Ponts et Chaussées, Champs-sur-Marne, 2004, (in French).
  • [10] N.R. Short, J.A. Purkiss, and S.E. Guise, “Assessment of fire damaged concrete using color image analysis”, Constructionand Building Materials 15, 9-15 (2001).
  • [11] M. Colombo and R. Felicetti, “New NDT techniques for the assessment of fire-damaged concrete structures”, Fire Safety J. 42 (6-7), 461-472 (2007).
  • [12] I. Hager, “Colour change in heated concrete”, Fire Technology 49, CD-ROM (2013).
  • [13] U. Diederichs, U.M. Jumppanen, and V. Pentalla, “Behaviour of high strength concrete at elevated temperature”, in Report 92, Helsinki University of Technology, Helsinki, 1989.
  • [14] RILEM, Recommandations Part 6 - “Thermal strain”, Materialsand Structures, Supplément 1, 17-21 (1997).
  • [15] I. Hager and P. Pimienta, “Transient thermal strains of high performance concretes”, Key note paper, Concreep 7 Int. Conf.on Creep, Shrinkage and Durability of Concrete and ConcreteStructures 12-14, CD-ROM (2005).
  • [16] J.C. Mindeguia, P. Pimienta, I. Hager, C. La Borderie, and H. Carré, “Experimental study of transient thermal strain and creep of an ordinary concrete at high temperatures”, Proc.4th Int. Workshop Structures in Fire (SIF’2006) II, 697-708 (2006).
  • [17] J.C. Mindeguia, “Contribution expérimentale `a la compr éhension du risqué d’instabilité thermique des bétons”, PhDThesis, Université de Pau et des Pays de l’Adour, Pau, 2009, (in French).
  • [18] I. Hager and P. Pimienta, “Impact of the polypropylene fibres on the mechanical properties of HPC concrete”, Proc. SixthRilem Symposium on Fibre Reinforced Concrete (FRC) BEFIB, 20-22 (2004).
  • [19] I. Hager and P. Pimienta, “Mechanical properties of HPC at high temperatures”, Proc. Int. Workshop fib Task Group, FireDesign of Concrete Structures: What now? What next? 4.3, 95-100 (2004).
  • [20] C. Castillo and A.J. Durrani, “Effect of transient high temperature on high-strength concrete”, ACI Materials J. 1, 47-53 (1990).
  • [21] S. Thelandersson, Effect of High Temperatures on TensileStrength of Concrete, p. 27, Lund Institute of Technology, Lund, 1971.
  • [22] A. Noumowe, P. Clasteres, G. Debicki, and M. Bolvin, “Effects of high temperature on high performance concrete (70◦C-600◦C) - strength and porosity”, Third CANMET/ACI Int. Conf. 1, CD-ROM (1994).
  • [23] R. Felicetti R., P.G. Gambarova, MP.N. Sora, and G.A. Khoury, “Mechanical behaviour of HPC and UHPC in direct tension at high temperature and after cooling”, 5th RILEM Symp. Fibre-Reinforced Concretes (FRC) - BEFIB’ 2000, 749-760 (2000).
  • [24] P. Kalifa, F.D. Menneteau, and D. Quenard, “Spalling and pore pressure in HPC at high temperature”, Cement and ConcreteResearch 1, 1915-1927 (2000).
  • [25] P. Kalifa, G. Chéné, and C. Gallé, “High-temperature behaviour of HPC with polypropylene fibres: From spalling to microstructure”, Cement and Concrete Research 31 (10), 1487-1499 (2001).
  • [26] T.Z. Harmathy, “Moisture in materials in relation to fire test”, ASTM, Special Technical Publication 385, 74-95 (1964).
  • [27] Z.P. Bazant, “Analysis of pore pressure, thermal stresses and fracture in rapidly heated concrete”, Int. Workshop on Fire Performanceof High Strength Concrete 13-14, CD-ROM (1997).
  • [28] D. Gawin, and B.A. Schrefler, “Thermo-hydro-mechanical analysis of partially saturated porous materials”, Eng. Computations 13 (7), 113-143 (1996).
  • [29] K. Hertz, Heat-induced Explosion of Dense Concretes. ReportNo 166, Technical University of Denmark, Denmark, 1998.
  • [30] K. Hertz, “Limits of spalling of fire exposed concrete”, FireSafety J. 38, 103-116 (2003).
  • [31] Z. Zheng, “Experimental study on concrete spalling in prestressed slabs subjected to fire”, Fire Safety J. 45, 283-297 (2010).
  • [32] Z.P. Bazant, “Concrete creep at high temperature and its interaction with fracture: recent progress”, Concreep 7 Int. Conf.on Creep, Shrinkage and Durability of Concrete and ConcreteStructures 1, 449-460 (2005).
  • [33] L. Bostr¨om and R. Jansson, “The age effect on fire spalling of concrete”, 2nd Int. RILEM Workshop on Concrete Spallingdue to Fire Exposure 1, 33-41 (2011).
  • [34] I. Hager and T. Tracz, “The impact of the amount and length of fibrillated polypropylene fibers on the properties of HPC exposed to high temperature”, Archives of Civil Eng. 1, 57-68 (2010).
  • [35] R. Jansson, Liquid/steam pressure measurement inside concrete exposed to fire, Proc. 4th Int. Workshop Structures inFire 1, 747-756 (2006).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPG8-0098-0020
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