Abstract
Purpose. Research of characteristics of heat-resistant concrete for application in thermal units and building constructions. Methodology. By standard techniques physic, mechanical, fire and heat physical characteristics of heat-resistant concrete with additives of perlite sand are investigated. Findings. Compositions of heat-resistant concrete with additives of perlite sand in a number of 0,1-1,8% can be used for the production of thin-walled linings of metallurgical units and designs and also for the production of the building constructions steady against fire action. Originality. Influence of a small number of additives of perlite sand on physic mechanical, fire and heat physical characteristics of heat-resistant concrete is established. Practical value. The received heat-resistant concrete with additives of expanded perlite sand provide the high physic mechanical, fire and heat physical characteristics steady against the action of high temperatures and the fire. Keywords: heat-resistant concrete, expanded perlite sand, additive, samples, properties of concrete.
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