An Investigation of the Stress-Strain State of Two-Layer Armocement Structures on the Power and Temperature Effects during a Fire

Abstract:

The effect of a fireproof vermiculite-concrete layer on the bearing capacity of the reinforced cement layer was tested by testing single-layer and two-layer armocement elements under pure bending under the conditions of a "standard fire". Temperature fields were obtained for single-layer and double-layer structures with one-sided heating by the Vanichev's method of thermal balances. It has been revealed that a fireproof layer made of vermiculite concrete with a thickness of 15 mm makes it possible to increase the load-bearing capacity of a thin-walled reinforcement cement structure in comparison with a single layer of the same thickness by 25% under the conditions of the "standard fire" temperature for one hour.

• Periodical: Materials Science Forum (Volume 931)
• Pages: 219-225
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.931.219
• Online since: September 2018
• Authors: Artur Zhurtov*, Tolya Khezhev, M.N. Kokoev
• Keywords: Armocement, Fire Resistance, Standard Fire, Stress-Strain State, Temperature Effect, Vermiculite Concrete

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