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. | Avksentev V.I. – post-graduate student 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 Borovskikh I.V. – 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 article | The influence of sludge chemical treatment in combination with a superplasticizer on the physico-mechanical properties of cement stone |
| Abstract. | The use of fillers in plasticized concrete mixtures can reduce the specific consumption of cement without compromising technical properties. Industrial wastes can be used effectively as fillers. Of greatest interest sludge applied (SHVO) thermal power plants, stored in large quantities in tailings ponds or industrial landfills. We have investigated the influence of sludge applied on properties of cement grout and stone. Replacing part of the cement in the slurry applied reduces the strength of the cement stone, which is why it should be used in conjunction with superplasticizers. Introduction SHWO leads to the increase of normal density and slower at the beginning and end of setting of cement grout. Least slow hardening occurs at 5 % content of dry SHVO, start setting differs from portland cement without additives composition for 20 min, and the end of the stiffening occurs at the same time. To obtain high-quality concrete fillers must be entered in the concrete mixture together with the plasticizing additive. It is established that the introduction of the sludge in an amount of 5 % by weight of cement together with superplasticizer increases the strength of the cement stone. Introduction slurry of humidity contraction reduces shrinkage in the early days of hardening. |
| Keywords. | cement stone, the sludge applied, superplasticizer, the strength, the contraction |
| For citations: | Avksentev V.I., Morozov N.M., Borovskikh I.V., Khozin V.G. The influence of sludge chemical treatment in combination with a superplasticizer on the physico-mechanical properties of cement stone // Izvestiya KGASU. 2015. №1(31) P.119-126. |
