CONSTRUCTION MATERIALS AND PRODUCTS

Original article

https://doi.org/10.24866/2227-6858/2025-1/155-165

Ilina L.V., Anpilov S.M., Tsekar D.A.

Liliya V. Ilyina, Doctor of Engineering Sciences, Professor, Director of the Institute of Digital and Engineering Technologies, Novosibirsk State University of Architecture and Civil Engineering (Novosibirsk, Russian Federation), nsklika@mail.ru, https://orcid.org/0000-0002-8520-4453

Sergey M. Anpilov, Doctor of Engineering Sciences, Professor of the Department of Technology and Organization of Construction, Novosibirsk State University of Architecture and Civil Engineering (Novosibirsk, Russian Federation). anpilovsm@yandex.ru, https://orcid.org/0000-0002-6512-5803

Denis A. Tsekar, Рostgraduate Student, Novosibirsk State University of Architecture and Civil Engineering (Novosibirsk, Russian Federation). tsekden@gmail.com

Influence of modification of cement matrix with fine mineral additive on its characteristics

Abstract. The article considers the change in the amount of hydrate neoplasms when modifying a cement system with a finely dispersed mineral additive, which allows us to understand the reasons for the acceleration of the cement matrix setting process when the additive is introduced into it. A finely dispersed powder of hydrated cement, ground at different durations (30 and 45 sec, 1, 3 and 5 min) in an AGO-2 planetary mill, is proposed as a modifying additive. The modeling of the cement matrix composition and the technological parameters of the mineral additive dispersion was carried out using the method of multifactorial experimental planning. As a result, models were obtained for the dependence of the setting time of the cement system on the grinding duration and the amount of additive. The results of a comprehensive thermal analysis revealed a deeper hydration of cement systems when the studied finely dispersed additive was introduced. Deep hydration of cement systems explains the acceleration of the setting process when the additive proposed by the authors was introduced.

Keywords: setting time, mineral additive, hydrated cement, grinding time

See the reference in English at the end of the article

For citation: Ilina L.V., Anpilov S.M., Tsekar D.A. Influence of modification of cement matrix with fine mineral additive on its characteristics. FEFU: School of Engineering Bulletin, 2025, no. 1(62), pp. 155–165. (In Russ.).