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. | Ermilova E.Yu. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kamalova Z.A. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Rakhimov R.Z. – 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 Gulyaeva R.I. – candidate of chemical sciences, senior researcher E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Institute of Metallurgy Ural Branch of the Russian Academy of Sciences The organization address: 620016, Russia, Еkaterinburg, Amundsen st., 101 |
| Title of the article | The research of the influence of complex additives based on calcined clays and carbonate fillers on the composition of hydration products of blended cement stone |
| Abstract. | Problem statement. The aim of this work was to study the influence of complex additives based on the calcined clay of Novoorsk deposits from Orenburg region and limestone of Dobryatinsk deposits from the Vladimir region (with a content of calcite 99 %) on the hydration products of blended cement stone at the age of 28 days. Results. Using X-ray diffraction and differential scanning calorimetry the composition of hydration products of blended cement stone with a complex additive based on the calcined clay and limestone at the age of 28 days of curing was studied. Conclusions. It is established that the introduction the 20 % of the complex additive based on the calcined clay and limestone leads to a significant decrease the content of portlandite, an increase in the number of tumors in the form of low-calcium hydrosilicates and calcium hidrocarboalumosilicates, stabilizing ettringite and calcium hydrocarbosilicates located in the amorphous phase, as visible an increase in compressive strength. This effect was amplified due to the additional alumina provided by the calcined clay reaction. |
| Keywords. | complex additive, carbonate filler, calcined clays, blended cement, limestone, cement stone, XRD, DSC. |
| For citations: | Ermilova E.Yu., Kamalova Z.A., Rakhimov R.Z., Gulyaeva R.I. The research of the influence of complex additives based on calcined clays and carbonate fillers on the composition of hydration products of blended cement stone // Izvestiya KGASU. 2017. №1(39) P.198-205. |
