Studies on Effect of Refractory Chemicals on Cement Mortar

Abstract:

Concrete has remarkable fire resistance properties. In the case of fire, it is found that the concrete affected by fire depends to a great extent on the intensity and duration of fire. Previous experience has shown that concrete structures are likely to have a good fire rating than structures made of other materials. Nevertheless, concrete undergoes important chemical and physical changes, starting at 400°C - 500°C. As calcium hydroxide and other hydration products start to decompose, concrete tends to lose its strength, typically around 600°C - 700°C. In order to improve the high temperature properties of concrete, admixtures can be used in concrete. In the following, a study on the effects of different admixtures on the properties of concrete at high temperature is presented.

• Periodical: Applied Mechanics and Materials (Volume 82)
• Pages: 184-189
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.82.184
• Online since: July 2011
• Authors: Narayana Suresh, Ramaswamy Jeyalakshmi, Uma Suresh
• Keywords: Compressive Strength, Duration of Exposure, Elevated Temperature, Refractory

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