Research in Properties of Modified Foam Concrete

The actual problem for the construction is to reduce the density and heat conductivity of cellular concretes by introducing modifying additives. Results of the study of non-autoclaved concrete on the basis of fly ash modified with additives are presented. Properties of the foam and non-autoclaved foam concrete with introducing additive-electrolytes, fiber and mineral additives are considered. In the course of the study conducted it is established that the use of mineral additives such as diopside and wollastonite is the most efficient in the non-auto- claved foam concrete with protein-based foaming agent. These modifiers make it possible to improve the aggregate stability of the foam concrete mix. The proposed composition and production technology of foam concrete products provide the reduction in the average density of the material in comparison with the control composition when introducing the wollas- tonite additive by 31%, when introducing the diopside by 54%. The heat conductivity factor when introducing the wollastonite and diopside is reduced up to 41–43% in comparison with the control composition. The foam stability factor is increased in the mortar mix by 9.5% when introducing the wollastonite, by 25% when introducing the diopside.

E.A. BARTENYEVA, Master (This email address is being protected from spambots. You need JavaScript enabled to view it.),
N.A. MASHKIN, Doctor of Science (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Novosibirsk State University of Architecture and Civil Engineering (SIBSTRIN) (113, Leningradskaya Street, Novosibirsk, 630008, Russian Federation)

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