Results of experimental researches of surface hardness of cellular concretes exposed to temperature by indentors having 20–55° angles of cone opening
DOI:
https://doi.org/10.33408/2519-237X.2019.3-1.13Keywords:
modeling, visibility, smoke-forming ability, smoke yield, experimental studiesAbstract
Purpose. Determination of angle of opening of a straight circular cone of indenter, to measure the surface hardness of cellular concrete.
Methods. Determination of the depth of immersion of steel indenters in samples of cellular concrete after high-temperature heating.
Findings. Experimental data on the change in hardness of cellular concrete, depending on the effects of high temperatures, have been obtained.
Application field of research. The results can be used to determine the fire in cellular concrete structures.
Conclusions. The angle of opening of the indenter cone has been determined, allowing to clearly identify those areas in the room where the surface of the blocks of cellular concrete was exposed to a temperature of more than 700 °C.
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Copyright (c) 2019 Volosach A.V., Gorovykh O.G.
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