The article investigates the strength and deformability of brick masonry based on clinkereffective buikding mortars modified by additives of air-entraining action. Comparative studies have determined the physical and mechanical properties of mortar based on composite Portland cement CEM II / B-M 32.5R and masonry cement MC 22.5. It is shown that mortar on the basis of modified low-emission zeolite-containing cement MC 22.5 with additives of air-entraining action provides reduction of stress-deformed state of brick masonry. It is established that the increased strength of adhesion (0.73 MPa) of the mortar in the brick masonry without cracking is provided by the use of modified low-emission masonry cement MC 22.5. Increasing the efflorescences resistance of brick masonry is achieved by surface modification of hydrophobic substances and the use of clinkerefficient mortar.
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