BUILDING MIXTURE WITH BACTERICIDAL PROPERTIES

Building technologies allow obtaining new materials with enhanced consumer properties. The ability to create conditions that prevent the development of bacterial microflora on building structures is one of such properties. The article presents common methods of protecting building materials and structures from the effects of bacterial cultures. Slag of ferroalloys production is proposed for the formation of bactericidal properties of the building mixture. The results of the study to determine the bacterial and basic physicomechanical properties of the proposed mortar are presented. The Plaster of Rotgips produced without bactericidal properties is used as the initial mixture. Evaluation of bacterial properties is carried out in ratios of 1: 1 and 5: 1 (plaster / slag). Studies show that the mixture does not stimulate growth and reproduction of bacterial microflora. A new mortar with a bactericidal property is obtained. Studies of crack resistance, physical and mechanical properties of the mixture with different composition present that the ratio of plaster and slag of 5: 1 allow achieving the main consumer indicators. The strength of the developed mortar during the compression test is not less than 2 MPa. The crack resistance is evaluated according to the method developed at the National Research Moscow State University of Civil Engineering.