This paper aimed to study the properties of clay rocks in terms of chemical, mineralogical, and granulometric compositions during the pre- and post-firing processes as compared to regulatory documents. Moreover, the electrochemical interactions between the clay rocks elements have been evaluated due to the electrophoresis of its core. The results revealed that the properties of the investigated clay rocks agreed well with the requirements of regulatory documents and it is suitable to produce the ceramic bricks by plastic and dry methods. However, the calculated energy charges of clay oxides prove that the chemical composition of clay rocks will provide an unstable and irritable brick system due to the negative charges being 1.6 times greater than the positive charges. To modify the composition, it is suggested to insert feedstock or additives containing 2.3 times more positive charge selected on the basis of the structure of s-, p- and d-electrons. Further studies are recommended to take into account the thermodynamic characteristics of the feedstock to monitor the firing process, reduce energy costs and improve the quality of bricks.

• The clay rocks properties for the production of the ceramic bricks
  • 1. Introduction
  • 2. Materials and Methods
    • 2.1. Clay Rocks Properties
    • 2.1.1. Sampling
    • 2.1.2 Macroscopic Description
    • 2.1.3 Chemical Composition
    • 2.1.4 Moisture Content
    • 2.1.5 Granular Distribution of Clay Raw Materials
    • 2.1.6 Clay Moisture and Cohesion
    • 2.1.7 The Plasticity of Clay Raw Materials
    • 2.1.8 The Cohesion of Clay Raw Materials
    • 2.2. Clay Drying Properties
    • 2.2.1 Air Shrinkage
    • 2.2.2 Drying Sensitivity of Clay
    • 2.3. Clay Firing Properties
  • 3. Results and Discussions
    • 3.1. Macroscopic Results
    • 3.2. Compared with Ukraine DSTU BV Standard
    • 3.3. Electrochemical Interactions
  • 4. Conclusion

Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: СПбПУ, 2020-. — Периодичность: 8 раз в год. — Выходит с 2020 г. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Электрон. журнал. — Текст: электронный

Magazine of Civil Engineering / Санкт-Петербургский политехнический университет Петра Великого. — Санкт-Петербург: СПбПУ, 2020-. № 3 (111), 2022. — 1 файл (12,9 Мб). — Свободный доступ из сети Интернет (чтение, печать, копирование). — Электрон. журнал. — <URL:http://elib.spbstu.ru/dl/2/j22-217.pdf>.