The Effect of a Nanotechnogenic Aluminoalkaline Sludge on the Phase Composition, Physicomechanical, and Chemical Characteristics of Earthquake-Proof Brick

IF 0.7 4区工程技术 Q4 ENGINEERING, CHEMICAL Theoretical Foundations of Chemical Engineering Pub Date : 2024-01-17 DOI:10.1134/S0040579523050020

E. S. Abdrahimova, V. Z. Abdrahimov

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Abstract

An earthquake-resistant brick of M150–M175 grade is obtained from a low-alumina (Al₂O₃) < 15%) fusible clay and a high-alumina (Al₂O₃ > 60%) nanotechnogenic aluminoalkaline sludge. The use of the aluminoalkaline sludge even in the amount of 20% enhances the performance characteristics of the ceramic brick to the M125 grade; the optimum amount of the aluminoalkaline sludge to be used is at most 30%. The crystallization of hematite, anorthite, diopside, and crystobalite is observed when the temperature of burning of the ceramic samples is 1000°C. The increase in the burning temperature to 1050°C results in no specific changes, except for an increase in the content of crystobalite, anorthite, glass phase, and diopside. A further increase in the temperature of burning of the aseismic brick to 1100°C favors the emergence of mullite, which increases the main physicomechanical and chemical characteristics of the aseismic brick.

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纳米氧化铝碱性污泥对抗震砖的相组成、物理力学和化学特性的影响

一种 M150-M175 级抗震砖是由低铝 (Al2O3) < 15%) 易熔粘土和高铝 (Al2O3 > 60%) 纳米氧化铝碱性污泥制成的。铝碱性污泥的使用量即使只有 20%，也能提高 M125 级陶瓷砖的性能特征；铝碱性污泥的最佳使用量最多为 30%。当陶瓷样品的焙烧温度为 1000°C 时，可观察到赤铁矿、阳起石、透辉石和隐闪石的结晶。灼烧温度升高到 1050°C 时，除了隐闪石、阳起石、玻璃相和透辉石的含量增加外，没有其他具体变化。将抗震砖的烧成温度进一步提高到 1100°C，有利于莫来石的出现，从而提高抗震砖的主要物理机械和化学特性。

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.