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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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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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.
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,
Strength Studies on Different Grades of Concrete Considering Fire Exposure, American Journal of Civil Engineering.
Vol. 6, No. 1,
2018, pp. 16-23.
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.
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