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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Stepanov S.V. – candidate of technical sciences, assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Morozov N.M. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Khozin V.G. – doctor of technical sciences, professor 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: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleResearch of durability of concrete with accelerator of hardening on the basis of galvanic sludge
Abstract.The aim of the work was to investigate the influence of complex accelerator of hardening on the basis of galvanic sludge on durability of concrete. It was studied the influence of the developed additives to the deformation of the swelling of the cement stone, frost resistance, water resistance of cement concretes, as well as an assessment of the structure of pore space of the modified fine-grained concrete. It is revealed that the introduction of the developed additives in cement deformation of the swelling increases. It is connected with the increase of the share of ettringite and with a high concentration low base hydrosilicate calcium layered structure. On the basis of the results of calculation of indicators of porosity, we can conclude that developed by additive in the composition of concrete reduces the diameter of communicating capillaries, as water saturation passes less intensive than that of concrete without additions. With the introduction of complex modifiers water demand of concrete mixture is reduced. Decrease In water/cement, in turn, contributes to the increase of frost resistance of concrete, because capillary porosity reduced, and consequently increased frost on 1-2 brand and water resistance by 2 steps.
Keywords.Galvanic sludge, accelerator of hardening, concrete, structure, porosity, frost resistance, water resistance.
For citations:Stepanov S.V., Morozov N.M., Khozin V.G. Research of durability of concrete with accelerator of hardening on the basis of galvanic sludge // Izvestiya KGASU. 2013. №2(24) P.268-272.


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