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.U. – 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 Gilfanov R.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 Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 |
| Title of the article | The research of influence of complex additives based on of calcined clays and carbonate fillers on properties of blended cement |
| Abstract. | Today the introduction of blended cements with various mineral additives is the leading principles of the concept of «sustainable development» in the cement industry. In Russia the production of composition cements is regulated by state standard specification with number 31108-2003 according to which introduction of mineral additives is allowed up to 65 %, however in practice about 75 % of the produced cements is limited to cements with the content 5 % of additives. At the same time, scientists established that the combination of silica-alumina puzzolanic admixtures (slags, fly ash, microsilica, metakaolin, burnt shale) with microfillers (limestone flour) gives synergetic effect. The results of a research of influence of complex additives based on calcined clays and carbonate flour on the properties of the blended cement paste and stone are presented. As clay raw materials the Novoorsk clay of the Orenburg region was chosen. As carbonate fillers Dobryatinsk and Kamayevsk limestones, and also Matyushinsk dolomite were taken. Influence of quantity and a type of carbonate filler as a part of complex additive on the properties of the composition cement paste and stone is investigated. It is shown that the blended cement with complex additive based on Dobryatinsk limestone have the best properties. |
| Keywords. | calcined clays, carbonate filler, blended cement, limestone, dolomite. |
| For citations: | Ermilova E.U., Kamalova Z.A., Gilfanov R.M. The research of influence of complex additives based on of calcined clays and carbonate fillers on properties of blended cement // Izvestiya KGASU. 2016. №4(38) P.344-350. |
