The influence of activated binders (cement) on the process of their hardening

Saint Petersburg State University of Architecture and Civil Engineering, 190005 Saint Petersburg, Russia

^* Corresponding author: yudinaantonina2017@mail.ru

Abstract

Introduction. The paper studies hardening activation with regard to binding systems (cements) and justifies the possibility of its implementation in construction engineering to prepare construction mixes when erecting buildings and structures out of cast-in-situ concrete and reinforced concrete. During hardening of binding systems (cements), hydrated cement phases are formed and the substance becomes solid, affecting the formation of cement stone and its strength. Purpose of the study. We aimed to study the mechanism of phenomena that occur during activation and hardening in binding systems as well as explore the possibility of their implementation and boosting in order to improve the physical and mechanical, processing, and performance properties of construction mixes. Methods. The properties and stability of binding (cement) systems, which are lyophilic systems, qualitatively characterize the interaction between a solid body and a fluid. The lyophilic behavior implies good wetting, low interfacial tension, and resistance of the surfaces to mutual adhesion. Results. A holistic approach to studying the mechanism of hardening activation in binding systems at the level of colloidal chemical phenomena as well as the energy of interaction between the binder and water in construction mix preparation will make it possible to determine the main directions of boosting the processes in binding systems through various types of energy impacts: mechanical, chemical, non-reagent, ultrasonic, electrostatic, and other methods.