Regularities of Mass Transfer in the Finishing Layer on the Basis of a Heat-Insulating Dry Construction Mixture in the Process of Moistening

Abstract:

A lime composition of a dry building mixture for finishing walls of buildings made of aerated concrete is proposed. The composition contains ash aluminosilicate microspheres as a filler. The kinetics of humidification of finishing coatings of building walls is described. For comparison, the work also investigated the processes of mass transfer in cement-sand plaster using quartz sand, as well as in plaster using vermiculite sand. A mathematical model of the process of wetting a composite based on a dry construction mixture is presented. Comparison of calculated and experimental data is carried out, their good agreement is shown. It is shown that a heat-insulating decorative coating based on a composition with ash aluminosilicate microspheres has a higher crack resistance in the process of moistening.

• Periodical: Key Engineering Materials (Volume 910)
• Pages: 592-597
• DOI: https://doi.org/10.4028/p-1q1714
• Online since: February 2022
• Authors: Valentina I. Loganina*, Mikhail Frolov, Georgy A. Fokin, Bassam Shareef Deneef Al Saedi
• Keywords: Construction Mixture, Finishing Layer, Heat-Insulation, Mass Transfer, Moistening

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