Relation between UPV and Residual Strength of Concrete Subjected to Heating and Sudden Cooling

Prashanth, Shree Laxmi and Yaragal, Subhash C. and Babunarayan, K S (2012) Relation between UPV and Residual Strength of Concrete Subjected to Heating and Sudden Cooling. International Journal of Earth Sciences and Engineering, 5 (3). pp. 605-610. ISSN 0974-5904

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Abstract

Concrete is a very popular and versatile construction material and finds its applications in most of the residential and commercial buildings. Concrete may be subjected to elevated temperatures during accidental fire or when it is in the vicinity of reactors and furnaces. Concrete is found to experience strength deterioration when subjected to elevated temperatures. The residual strength properties of the concrete depend on the method of cooling adopted. It is an usual practice to extinguish the fire by spraying water. This induces a thermal shock, leading to deterioration in strength of concrete. An experimental investigation is carried out to assess the deterioration of concrete due to heating and cooling of OPC concrete. The heating temperatures were 200°C to 800°C at an interval of 100°C and the cooling methods adopted were water quenching and furnace cooling. Residual properties such as compressive strength and UPV are reported. The UPV is found to deteriorate at a faster rate with the increase in exposure temperature as compared to the compressive strength

Item Type: Article
Uncontrolled Keywords: Elevated Temperatures, Residual UPV, Residual Strength, Sudden Cooling.
Subjects: Engineering > MIT Manipal > Civil Engineering
Depositing User: MIT Library
Date Deposited: 10 Jan 2017 11:06
Last Modified: 10 Jan 2017 11:06
URI: http://eprints.manipal.edu/id/eprint/147949

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