ThermalInsulation Dry Construction Mixture Based on Diatomite
Nurlybayev R.E. Kuldeyev E.I. Yestemessova A.S. Altayeva Z.N. Orynbekov Y.S. Murzagulova A.A. Iskakov A.A. Abisheva G.K. Khamza Y.Y.
July 2025Multidisciplinary Digital Publishing Institute (MDPI)
Coatings
2025#15Issue 7
In the context of intensified construction and stricter requirements for the energy efficiency of buildings, the use of thermal insulation materials and technologies is becoming particularly important. One promising area in this field is the use of thermal insulation mixtures, which are versatile, adaptable, and highly reliable in operation. Mixtures based on fillers with a porous structure and materials that impart thermal insulation properties, which provide higher thermal insulation properties, are of great interest. However, the development of dry thermal insulation mixtures is hampered by insufficient study of their physical, mechanical, and operational characteristics. This article presents the results of research work on the development and study of dry building thermal insulation mixtures. A distinctive feature of the work is the creation of a composition of dry building thermal insulation mixtures based on local raw materials, such as diatomite, its thermal modification at a temperature of 900 °C, the use of expanded perlite sand, lime, and Portland cement. Research into the properties of modified diatomite has shown that its surface after thermal treatment differs from the surface of unburned diatomite in that it becomes more active and has a 3–4 times higher increase in strength. Modified diatomite and expanded perlite sand have low thermal conductivity, and this property was used in the creation of building thermal insulation mixtures, which was confirmed by research, as the thermal conductivity coefficient ranged from 0.128 to 0.152 W/m °C. The developed dry thermal insulation lime–cement mixture is intended for both interior and exterior finishing works, which is confirmed by the results obtained for determining the frost resistance of the solution and the frost resistance of the contact zone, and corresponds to the F35 grade and has a strength of up to 3.59 MPa.
expanded perlite sand , modified diatomite , special additives , thermal insulating dry construction mixture , water-holding capacity
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Institute of Architecture and Civil Engineering, Satbayev University, Almaty, 050013, Kazakhstan
Faculty of Construction Technologies, Infrastructure and Management, International Educational Corporation, Almaty, 050043, Kazakhstan
LLP «SAVENERGY», Almaty, 050043, Kazakhstan
Institute of Architecture and Civil Engineering
Faculty of Construction Technologies
LLP «SAVENERGY»
10 лет помогаем публиковать статьи Международный издатель
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