Strength Studies on Different Grades of Concrete Considering Fire Exposure
American Journal of Civil Engineering
Volume 6, Issue 1, January 2018, Pages: 16-23
Received: Nov. 7, 2017; Accepted: Nov. 16, 2017; Published: Dec. 14, 2017
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Authors
Kiran Kumar Poloju, Department of Civil Engineering, Middle East College, Muscat, Oman
Ram Kishore Manchiryal, Department of Civil Engineering, Middle East College, Muscat, Oman
Chiranjeevi Rahul, Department of Civil Engineering, Middle East College, Muscat, Oman
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Abstract
Concrete is generally strong in compression and weak in tension also it resist against fire. Cement concrete is a complex mixture of different materials, for which the properties may alter in different environmental conditions. The behavior of concrete is depends on difference in temperatures and its mix proportions. The principle effects in the concrete due to elevated temperatures are loss in compressive strength, loss in weight or mass, change in color and spalling of concrete. The objective of this research attempt was to prove experimentally the effects on the behavior of concrete under elevated temperatures of different grades (M20, M40 and M60) of concrete. The compressive strength was determined at different temperatures, thus providing scope of determining loss in strength. In addition, effects on strength under cooling for different grades of concrete were studied. The specimens were kept in oven at certain temperatures (200°C, 400°C, 600°C, and 800°C) for 1 hour at constant temperatures. Non-destructive testing (NDT) methods, i.e. Rebound hammer test was adopted to study the changes in surface hardness of concrete specimens subjected to elevated temperatures.
Keywords
Grades of Concrete, Mechanical Properties, Elevated Temperatures, NDT, Rebound Hammer Test, Cooling Regime, Water Quenching
To cite this article
Kiran Kumar Poloju, Ram Kishore Manchiryal, Chiranjeevi Rahul, Strength Studies on Different Grades of Concrete Considering Fire Exposure, American Journal of Civil Engineering. Vol. 6, No. 1, 2018, pp. 16-23. doi: 10.11648/j.ajce.20180601.14
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
Saad M, Abo-EI-Enein S. A, Hanna G. B and Kolkata M. F Effect of temperature on physical and mechanical properties of concrete containing silica fume, cement and concrete Research, Vol. 26, No. 5, 669-675.
[2]
Long T. Phan and Nicholas J. Carino; “fire performance of high strength concrete: research needs” ASCE, May 2000.
[3]
Long T; “Spalling and mechanical properties of high strength concrete at high temperature” Environment and loading, 2007.
[4]
Sujith Ghosh and Karim W. Nasser, Effects of high temperature and pressure on strength and elasticity of lignite fly ash and silica fume concrete, ACI Material Journal, February 1996.
[5]
Material and environmental factors influencing the compressive strength of unsealed cement paste and concrete at high temperatures R. Sarshar; G. A. Ghoury Magazine of concrete Research, Volume 45, Issue 162, 01 March 1993.
[6]
Castilo, C., Durrani, and AJ: Effect of transient high temperature on high strength concrete: ACI Mater J 1990; 35 (1): 47-53.
[7]
V. Kodur and wasim khaliq, “effect of temperature on thermal properties of different types of high strength concrete” ASCE, 2011% Factors affecting fire Performance in high strength concrete.
[8]
Effect elevated temperature on the properties of high strength concrete containing cement supplementary materials, R. Sri Ravindrarajah, R. Lopez and H. Reslan, 9th international conference on durability of building materials and components, Brisbane, Australia, 17-20th march, 2002.
[9]
Sri Ravindrarajah, R., residual compressive and tensile strength for high strength concrete exposed to high temperature up to 800°C, proceedings internal conference on HPHSC, Perth, Australia, August 1998, 633-645.
[10]
V. Kodur. And Nikhil Raut, “performance of concrete structures under fire hazard: emerging trends” ICI, 2010.
[11]
Nassif, A. Y.; Rigden, S.; Burley, effects of rabid cooling by water quenching on the stiffness properties of fire damaged concrete. E-Source: Magazine of concrete Research, V 51, no 4, p 255-261, August 1999.
[12]
K. Srinivasa Rao and M. Potha Raj “a study on variation of compressive strength of high Strength concrete at elevated temperatures” 25 - 26 August 2004.
[13]
O. Carvel, Asif Usmani and Stephen Welch, “Behaviour of concrete structures in fire”.
[14]
Kiran Kumar Poloju, Vineetha Anil, Ram Kishore Manchiryal, Impact of nano silica on strength and durability properties of self-compacting concrete, International Journal of Advanced and Applied Sciences, 4 (5) 2017, Pages: 120-126.
[15]
Kiran Kumar Poloju, Ram Kishore Manchiryal, Chiranjeevi Rahul R, Development of sustainable concrete by using paper Industry waste, Elixir Civil Engg. 102 (2017) 44152-44154 44152.
[16]
J Novak and A Kohoutková 2017 IOP Conf. Ser.: Mater. Sci. Eng. 246 012045.
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