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Production of lightweight firebricks by adding porcelainite to white kaolin and bauxite | ||
| Journal of University of Anbar for Pure Science | ||
| Volume 19, Issue 2, November and December 2025, Pages 277-285 PDF (1.65 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.37652/juaps.2024.154791.1330 | ||
| Authors | ||
| Aqeeq S. Mottar* ; Mohammed A. Al-Nuaimi | ||
| Department of Applied Geology, College of Science, University of Anbar, Ramadi, Iraq | ||
| Abstract | ||
| Lightweight firebricks are critical in many sectors. There is a growing need to develop materials for furnaces, chambers, and burning towers in various construction and non-construction industries. Iraq offers raw materials that can replace imports. This study aimed to manufacture lightweight firebricks by adding porcelanite in different proportions to white kaolin and bauxite. Four raw-material mixtures were prepared with 9 samples were formed from each mixture (36 total) for evaluation. The study was prepared by performing chemical analysis and Atterberg limits, followed by forming firebrick specimens using the semi-dry pressing method. After drying at 105–110 °C, firing was carried out at 1200, 1300, and 1400 °C with a maturation (soak) time of one hour. The fired specimens were then inspected and tested to determine physical, mechanical, and thermal properties. Physical tests included post-firing longitudinal shrinkage, porosity, and total density; mechanical testing measured compressive strength; and thermal conductivity was assessed for the produced bricks. The results met international and Iraqi standard specifications for lightweight refractories. | ||
| Keywords | ||
| lightweight refractory brick; porcelainite rocks; Thermal conductivity | ||
| References | ||
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