Abstract
It is proposed to use limy finishing compositions with a modifying additive in thermal insulation. Such additives are obtained in two-stage synthesis technology. The mineralogical composition of the additive is represented by a mixture of synthesized hydrosilicates and calcium aluminosilicates. The method of lime absorption from lime solution was used to find out the additive pozzolanic activity. The authors estimate the efficiency of using additives in the composition of calcareous dry mortars. The compressive strength and the content of free lime in lime composites are determined. Further, the paper provide the feasibility of the adopted two-stage synthesis technology. Finally, the authors obtain the crack resistance of coatings based on a heat-insulating calcareous dry mortar intended for finishing aerated concrete.
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