Strength and Deformation Properties of Building Mortars Modified with a Peat-Based Additive

High-quality competitive dry building mixes require the inclusion of modifying additives for various purposes in their composition. At the same time, the use of dry building mixes when conducting finishing and installation works significantly improve their quality and labor productivity, provides high performance characteristics of finished products. The variety of consumer properties of such mixes determines the need for the use of a complex of modifying additives for various purposes. The production of import-substituting competitive in properties additives in building mixes is an important task. One of the ways to solve this problem is to organize the production of modifying additives based on local raw materials. TSUAB has developed a modifying additive (MT-600) based on thermally activated peat raw materials, the introduction of which makes it possible to increase the strength characteristics of building mortars at compression up to 20% and at bending up to 15%, and the modulus of elasticity by 25%. Significantly, up to 44%, the strength characteristics of modified mortars increase at the early stages of hardening. The paper presents the results of a study of the effect of the MT-600 additive on the deformation and strength properties of building mortars, the features of the formation of these characteristics are established.

N.O. KOPANITSA, Doctor of Sciences (Engineering), Professor (This email address is being protected from spambots. You need JavaScript enabled to view it.);
О.V. DEMYANENKO, Senior Lecturer (This email address is being protected from spambots. You need JavaScript enabled to view it.),
А.А. KULIKOVA, Post-graduate Student (This email address is being protected from spambots. You need JavaScript enabled to view it.);
A.G. PETROV, Candidate of Sciences (Engineering), Associate Professor (This email address is being protected from spambots. You need JavaScript enabled to view it.)

Tomsk State University of Architecture and Building (2, Solyanaya Square, Tomsk, 634003, Russian Federation)

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