Acta Geodynamica et Geomaterialia

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.