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. – leading specialist in designing WS E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it OOO «Engineering Center of High-Rise Special Technology» The organization address: 420088, Russia, Kazan, Journalists st., 54 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 Shchelkonogova Ya.V. – student 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 | Hydration products composition of blended cement stone with a complex additive calcined polymineral clay and limestone |
| Abstract. | Problem statement. The aim of this – the determination of the composition of hydration products at 28 days blended cement stone with a complex additive based on calcined polymineral clay and carbonate rock with calcite content of 99 %. Results. Using X-ray diffraction and Differential scanning calorimetry the composition of hydration products of blended cement stone at the age of 28 days of curing with the complex additive of calcined clay and limestone was determined. Using the results of XRD and DSC it shown that the use of 20 % of a complex additive calcined polymineral clay and limestone in blended Portland cement can significantly reduce the formed portlandite content, to increase the number of new formation in the form of low-basic calcium hydrosilicates and calcium hydrocarbosilicates as the amorphous phase, which leads to increased strength characteristics. The calcium hydrocarboaluminates formation leads to stabilization process of ettringite formation. Conclusions. Significance of the obtained results for the construction industry is in expanding the range of blended Portland cement by the use of available mineral raw materials for the production of complex additives. |
| Keywords. | blended cement, cement stone, complex additive, limestone, calcined clays, XRD, DSC. |
| For citations: | Ermilova E.Yu., Kamalova Z.A., Rakhimov R.Z., Shchelkonogova Ya.V. Hydration products composition of blended cement stone with a complex additive calcined polymineral clay and limestone // Izvestiya KGASU. 2017. №4() P.289-. |
