This is an open access article distributed under the CC BY 4.0
Volume 19 article 853 pages: 787-793
This article presents studies of the technological process for producing curing monolithic aerated concrete from
industrial slag sands. The purpose of this work is to develop and optimize the composition of lightweight concrete
using gypsum building plaster as a binder. For the construction of low-rise industrial buildings, it is proposed to use
industrial slag components and waste from the Norilsk industrial district. To form a cellular structure of concrete, it
was chosen the chemical method of porosity, which involves the implementation of a gas evolution reaction when
aluminum powder interacts with calcium hydroxide. During the tests, Portland cement M400 of the Topkinsk cement
plant was used, sand with a specific surface area of 4.62; 7.3; 16.48 and 28.85 m²/kg. The study of the parameters
characterizing the blowout and structure formation of aerated concrete mixture was carried out in collapsible metal
shapes with a base of 0.10*0.10 m, filled to 1/3 of the height. Temperature profiles were recorded by controlling 10
thermocouples for 1-2 minutes using a КСП potentiometer. It was concluded that expanded clay aggregate and sawdust
for gypsum-lightweight concrete are active and contribute to its hardening.
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