Structural and Mechanical Properties of Aerated Concrete With Addition of Sludge Calcium Carbonate
Abstract
The paper presents the research results on the effect of calcium carbonate-based additives on mechanical properties of autoclave-cured foam concrete. Sodium chloride residuals are mineral additive mostly comprising nanoparticles 10-60 μm in size. It is shown that the introduction of calcium carbonate sludge into the concrete mix in the amount of 5-15 % has no effect on the strength properties of concrete. Calcium carbonate additives promote the formation of a porous structure and increase the strength of the concrete samples. The experimental results show that calcium carbonate-based additives in the mixture allow producing samples with D500 and D600 density.
About the Authors
Natalia V. Legostaeva
Irkutsk National Research Technical University
Russian Federation
Russian Federation
PhD, A/Professor,
Lermontov Str.83, 664074, Irkutsk
Tatiana Y.U. Nesterova
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Research Assistant,
Lermontov Str.83, 664074, Irkutsk
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Review
For citations:
Legostaeva N.V., Nesterova T.Y. Structural and Mechanical Properties of Aerated Concrete With Addition of Sludge Calcium Carbonate. Vestnik of Tomsk state university of architecture and building. 2017;(1):155-161. (In Russ.)
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