About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Stroganov V.F. – doctor of chemical science, professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kukoleva D.A. – assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420023, Kazan, Zelenaya st., 1 Perushkina E.V. – candidate of technical science, associate professor Kazan National Research Technological University The organization address: 420015, Kazan, K. Marks st., 68 |
| Title of the article | A comparative investigation of the influence of micro-organisms and environments modeling the waste products of microorganisms in the cement-sand grout |
| Abstract. | The problem of biological damage (due to the action of various micro-organisms) of building constructions at the present time is relevant. This work is dedicated to providing methodological problems of biological corrosion of building materials, products and constructions. The standard method has several disadvantages, which do not permit to use it widely, so it became necessary to find alternative methods of testing building materials for biopersistence. It is known that the causes of biological destruction of building constructions are not the microorganisms, but their metabolic products. An assessment of the influence of strains sulfur-oxidizing bacteria and active sludge on the strength characteristics of cement-sand mortar. By the way, a lower level of strength characteristics of samples of cement-sand mortar, when exposed to a mixture of solutions of organic acids (acetic, oxalic and citric) was designated. Comparative analysis of the results has carried out, which allowed us to determine the composition of the model medium, with an impact on patterns of cement-sand grout, similar microorganisms in activated sludge. The model medium is a mixture of organic acids in the following proportions: acetic acid (1 %) – 2 parts by weight, oxalic acid (0,1 %) – 3 parts by weight, citric acid (1 %) – 1 mass part. |
| Keywords. | Biodeterioration, biocorrosion, active sludge, sulfur-oxidizing bacteria, cement-sand grout. |
| For citations: | Stroganov V.F., Kukoleva D.A., Perushkina E.V. A comparative investigation of the influence of micro-organisms and environments modeling the waste products of microorganisms in the cement-sand grout // Izvestiya KGASU. 2012. №1(19) P.128-133. |
