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Investigation of the intensity of gas release and reactivity of aluminum powder PAP-1 with the simultaneous introduction of a gas generator with a partially hydrated aerated concrete mixture into a cellular concrete composition

Abstract

Investigation of the intensity of gas release and reactivity of aluminum powder PAP-1 with the simultaneous introduction of a gas generator with a partially hydrated aerated concrete mixture into a cellular concrete composition

Shujskij A.I., Stelmakh S.A., Shcherban E.M., Khalyushev A.K., Kholodnjak M.G., Nazhuev M.P.

Incoming article date: 30.07.2017

This article considers the effect of the introduction of a partially hydrated aerated concrete mixture on the intensity of gas evolution, the reactivity of a disperse gas generator, and the physical and mechanical properties of aerated concrete. To test the working hypothesis, two compounds were designed and manufactured. The pure dispersed gas generator was introduced into composition C№1, and a mixture of a gas generator with a partially hydrated gas-concrete mixture was introduced into the composition C№2. A comparative analysis of the results of physical and mechanical tests of the aerated concrete samples of the tested compositions showed that its introduction increases the compressive strength, while reducing the density of aerated concrete. At the same time in the composition of С№1 there is a higher density and a drop in strength

Keywords: Partially hydrated mixture, gas generator, aluminum powder PAP-1, reactivity, device PGV-2, kinetics of gas evolution, average density in the dry state, compressive strength