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. | Khaliullin Marat Ilsurovich 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 Faizrakhmanov Ildar Idrisovich chief project engineer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it LLC «Zemelnaya agropromyshlennaya korporaciya» The organization address: 119435, Russia, Moscow, Savinovskaya nab., 23, b. 1 |
| Title of the article | The effect of ground limestone on the properties of a composite gypsum binder using thermally activated clay as a pozzolan component |
| Abstract. | Problem statement. The purpose of this work was to study the influence of methods of preliminary preparation of thermally activated clay, which is a pozzolan component in the preparation of water-resistant composite gypsum binders, as well as the effect of mechanochemical activation in the joint grinding of thermally activated clay with the addition of a plasticizer on the pozzolanic activity and the change in the required number of pozzolanic component in the composition of composite gypsum binders. Results. It is established that the required amount of thermally activated clay in the composition of gypsum-cement-pozzolan composition at its grinding to specific surfaces of 200-500 m2/kg together with the addition of the Melflux 2651 F plasticizer decreases by 20-25 % compared with the use of thermally activated clay ground without the introduction of a plasticizer. The optimal amount of Melflux 2651 F plasticizer introduced during grinding with thermally activated clay was established. Conclusions. The significance of the results for the construction industry lies in the fact that the application of the technology of production of composite gypsum binders thermoactivating grinding clay to a dispersion with the introduction of additives of a plasticizer due to the effect of mechanical activation allows to reduce the consumption of pozzolanic component in the composition of the binder or the energy consumption for grinding. |
| Keywords. | plasticizer, composite gypsum binder, gypum-scement-pozzolanic composition, thermally activated clay, water resistance, mechanochemical activation. |
| For citations: | Khaliullin M.I., Faizrakhmanov I.I. The effect of ground limestone on the properties of a composite gypsum binder using thermally activated clay as a pozzolan component // Izvestiya KGASU. 2019. №3(49) P.190-196. |
