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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Analysis of temperature effect on ceramic brick production from alluvial deposits, Tamilnadu, India
Abstract This study focuses on the thermal behaviour of alluvial clays in the production of ceramic brick industries, which are largely found on the bank of the Cauvery river, Tamilnadu, India. Clay bars were prepared which consisted of quartz, kaolinite, illite, chlorite, feldspars and iron oxides. The test samples were fired in the range of 700–1100°C and were examined with chemical analysis, thermogravimetric–differential thermal analysis (TG–DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). An increase in firing temperature resulted in dehydroxylation of clay minerals, persistence of quartz and formation of Ca-anaesthetic plagioclase. SEM images visualized the vitrification of the fired bricks, which increased the compressive strength of the fired bars. The bricks made with alluvial clays displayed less water absorption and higher compressive strength, indicating that they could be used in the brick industry. The results of this work assisted the industries to select more appropriate natural clay composition and firing dynamics for making the bricks.
Highlights ► Alluvial clay deposits from the bank of Cauvery River, Tamilnadu were studied. ► The clays are illitic type and major minerals assigned to quartz and plagioclase. ► The highest compressive strength of the clays was observed at 1100°C. ► The relationship between water absorption and compressive strength has been studied.
Analysis of temperature effect on ceramic brick production from alluvial deposits, Tamilnadu, India
Abstract This study focuses on the thermal behaviour of alluvial clays in the production of ceramic brick industries, which are largely found on the bank of the Cauvery river, Tamilnadu, India. Clay bars were prepared which consisted of quartz, kaolinite, illite, chlorite, feldspars and iron oxides. The test samples were fired in the range of 700–1100°C and were examined with chemical analysis, thermogravimetric–differential thermal analysis (TG–DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). An increase in firing temperature resulted in dehydroxylation of clay minerals, persistence of quartz and formation of Ca-anaesthetic plagioclase. SEM images visualized the vitrification of the fired bricks, which increased the compressive strength of the fired bars. The bricks made with alluvial clays displayed less water absorption and higher compressive strength, indicating that they could be used in the brick industry. The results of this work assisted the industries to select more appropriate natural clay composition and firing dynamics for making the bricks.
Highlights ► Alluvial clay deposits from the bank of Cauvery River, Tamilnadu were studied. ► The clays are illitic type and major minerals assigned to quartz and plagioclase. ► The highest compressive strength of the clays was observed at 1100°C. ► The relationship between water absorption and compressive strength has been studied.
Analysis of temperature effect on ceramic brick production from alluvial deposits, Tamilnadu, India
Manoharan, C. (Autor:in) / Sutharsan, P. (Autor:in) / Dhanapandian, S. (Autor:in) / Venkatachalapathy, R. (Autor:in) / Asanulla, R. Mohamed (Autor:in)
Applied Clay Science ; 54 ; 20-25
05.07.2011
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Alluvial clay , XRD , SEM , Firing temperature , Brick , DTA
Analysis of temperature effect on ceramic brick production from alluvial deposits, Tamilnadu, India
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