Abstract

Ceramic bricks is one of the most popular architectural finishing and structural materials. It has high efficiency and decorative properties. Expanding the raw material base of clay deposits in the production of ceramic bricks is an urgent task. In order to assess the possibility of using clays from the Sazdinsky Deposit (Aktobe region) in the production of ceramic bricks. Studies are conducted on four sections of clays from this deposit. The chemical and mineralogical composition of clays is studied, and the rational composition of raw materials is calculated. It is revealed that the studied clays have a polymineral composition, the main rock-forming minerals are kaolinite, illite and montmorillonite. According to the classification of A. I. Augustinik, the technological purposes of the studied clays are evaluated. The phase composition of samples heat-treated at different temperatures is studied. Based on the data of chemical and mineralogical composition of raw materials, technological properties of clays, physical-mechanical and operational indicators, it is established that the clays of three sites are suitable for the production of ceramic bricks by plastic molding. Phase composition of the obtained ceramic materials based on clays of four sites at a firing temperature of 1050 ° C are represented by quartz, hematite, anorthite, mullite, hematite and cristobalite. The strength of the fired samples of all clays corresponds to the brand 150-200. It is found that a more frost-resistant brick is obtained from the clays of the second section.

Highlights

  • In order to assess the possibility of using clays from the Sazdinsky Deposit (Aktobe region) in the production of ceramic bricks

  • It is revealed that the studied clays have a polymineral composition, the main rock-forming minerals are kaolinite, illite and montmorillonite

  • The phase composition of samples heat-treated at different temperatures is studied

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Summary

Химический состав исследуемых глин

Все пробы глин относятся – к группе с высоким содержанием Fe2O3 [8]. Основные минералы глинистого сырья представлены каолинитом, монтмориллонитом и кварцем В качестве примесей присутствуют иллит, полевые шпаты. В глине наблюдается высокое содержание примесей соединений железа, представленных минералом гетит. 1. Результаты дифракционного анализа исходных глин: а) участок No1, б) участок No2, в) участок No3, г) участок No 4. Составы масс на основе новых видов сырья известному химическому составу глин, установможно выбирать не только экспериментально, но лен минералогический (рациональный) состав и на основе некоторых расчетов по химическому анализируемых глин В ходе проведенных расчетов по Таблица 2 Рациональный состав глин. Части Иллит Монтмориллонит Анортит Альбит Каолинит Гетит Свободный кремнезем. Основные технологические свойства глинименее 5 мкм, содержание которых составляет стого сырья представлены в таблице 3

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