Title: EFFECT OF HIGH TEMPERATURES ON CEMENT COMPOSITE MATERIALS IN CONCRETE STRUCTURES |
Authors: Bodnárová Lenka, Válek Jaroslav, Sitek Libor and Foldyna Josef |
DOI: 10.13168/AGG.2013.0017 |
Journal: Acta Geodynamica et Geomaterialia, Vol. 10, No. 2 (170), Prague 2013 |
Full Text: PDF file (1.3 MB) |
Keywords: high temperature, load resistance, concrete, reinforcing of mine works, fiber reinforcement |
Abstract: Concrete is flexible construction material, which is utilized in various technological applications for underground structures
and reinforcement of mine works (adits, tunnels etc.). In such applications, concrete has many functions – static function,
water-tightness, gas-tightness, resistance to action of aggressive waters as well as durability. In case of railroad and road
tunnel constructions, there is another important problem: influence of high temperatures on concrete lining during wildfire.
The paper focuses on analysis of behavior of cement composite material (concrete) exposed to high temperatures. Several
possibilities of increasing resistance of cement composites to high temperatures are proposed as well as recommendation for
reduction of damage on structures exposed to high temperature. |