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UTILIZATION OF GEORGIA KAOLINS IN THE MANUFACTURE OF FACE BRICK 1
Author(s) -
Stull R. T.,
Bole G. A.
Publication year - 1924
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1924.tb18212.x
Subject(s) - shrinkage , brick , materials science , metallurgy , mineralogy , geology , geotechnical engineering , mining engineering , composite material
The availability of the sedimentary kaolins of Georgia for the manufacture of face brick, when blended with sutficient flux‐bearing rock (aplite) and sand, has been demonstrated. Two representative clays were used. Four samples of aplite were mixed with varying amounts of the kaolins and fired to cones 6 and 12. The physical properties of the fired specimens are tabulated. Using this information as a basis, semi‐commercial tests were run using varying percentages of kaolin, aplite and sand. Bricks were made up by both the dry press and stiff mud process and fired to temperatures around cone 9. Trouble was experienced due to excessive shrinkage and due to crack. ing with mixtures containing no sand. Due to lower drying shrinkage, the dry press method of manufacture was found to be better suited to certain mixes than the stiff mud process. A mix was finally produced which went through the stiff mud process nicely, dried safely, and burned to a dense, light buff body at cone 81/2. The total shrinkage of this body was comparatively low.