IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

A Study on Effect of Mechanical Properties of Recron 3S Fibre Concrete on Different Grades Exposed To Elevated Temperatures


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International Journal for Innovative Research in Science & Technology
Volume 4 Issue - 1
Year of Publication : 2017
Authors : Mylavarapu Phani Sekhar ; K Raju

BibTeX:

@article{IJIRSTV4I1014,
     title={A Study on Effect of Mechanical Properties of Recron 3S Fibre Concrete on Different Grades Exposed To Elevated Temperatures},
     author={Mylavarapu Phani Sekhar and K Raju},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={1},
     pages={41--46},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I1014.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

The concrete elements such as beams, columns, slabs etc., prone to sudden fire break out of fire are subjected to extreme temperatures. Their performance and assessment after exposed to fire becomes necessary to decide upon its fitness and required measures for the repair of different elements. Therefore, it is necessary to understand the changes in the concrete properties due to its exposure to extreme temperatures. It is very essential to know the effect of elevated temperature on the properties of concrete. This paper investigates the effect of sustained elevated temperature on the properties of ordinary concretes of three different grades i.e., M30, M35 and M40 grades, containing 53 grade of cement. The specimens were heated to 1500C, 2500C and 3000C at 1 hour, 2hours and 3hours duration in muffle furnace. They were tested for compressive and split tensile strengths after air cooling to the room temperature. The variables considered in the study include type of cementing material, and temperature. The compressive and tensile strengths of concrete decreased with increasing temperature. And also recron 3s fiber material is used for increasing the strength of the concrete at various temperatures. In this experimental study Recron 3s fiber has been added to concrete in order to enhance the strength characteristics of the concrete in percentages of 0.10%, 0.15%, 0.20%, 0.25%, 0.30%, 0.35% and 0.40% to the weight of concrete and the optimum fiber content for Compressive and Tensile strengths were obtained and it can be used for further study for determining the Compressive and Tensile strengths of the conventional concrete without using recron 3s fiber and concrete with recron 3s fiber material at various elevated temperatures and were observed at 1hour, 2hours and 3hours duration for the age of 7 days to 56 days.


Keywords:

Recron 3s Fiber, Elevated temperature, conventional concrete, Muffle furnace


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