International Journal of Research in Engineering and Applied Sciences
Year : 2017, Volume : 7, Issue : 1
First page : ( 13) Last page : ( 27)
Online ISSN : 2249-3905.

Flexural behaviour of concrete beams with M-Sand subjected to elevated temperature

Prasad T. Ramanandesh, Post graduate student, Dr. Manjunath Y. M., Professor

Department of Civil Engineering, The National institute of Engineering, Mysuru

Online published on 8 May, 2017.

Abstract

The global consumption of manufactured sand as an alternative for natural sand is used extensively, due to the high demand and scarcity of natural sand. In this regard, to understand the flexural behaviour of concrete specimens with M-sand subjected to elevated temperature is studied experimentally. A total 95 specimens are casted and are subjected for various elevated temperature (100°C-600°C) for different duration of exposure time (1hr, 2hr and 3hr) and these specimens are tested for flexural strength by two point loading. The results so obtained are compared with the flexural strength of specimens at room temperature. Results show that the flexural strength gradually decreases as the exposure temperature and duration increases. Fire represents one of the most severe exposure conditions in structures. Hence provisions for appropriate fire resistance for structural members are major safety requirements for any building design. Manufactured sand offers viable alternative to natural sand but it has to satisfy the strength requirements when concrete is subjected to elevated temperature. On this aspect research on concrete with manufactured sand is scarce, so this project aims at studying the flexural behavior of concrete using M-sand as a replacement for natural sand subjected to elevated temperatures

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Keywords

M-Sand, elevated temperature, Flexural strength, Two point loading.

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