The Development of Sprayed Concrete for Extreme Temperatures

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Abstract:

Experience obtained from often tragic road accidents has proven that in a fire the tunnel lining is destructed very intensively by high temperatures. Concrete, usually applied using the sprayed concrete technology (so-called shotcreting) is used for building the linings of road tunnels. The topic of the present article is the development of a concrete mix determined by the sprayed concrete technology so that this material is to the maximum extent resistant to extreme temperature effects occurred in a fire. It is apparent that using this type of concrete is one of the way of increasing the fire safety of road tunnels.

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133-137

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April 2015

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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