Author(s): Lamey G. Girgis, N. Yehia, A. Abd-Allah and N. Ibrahim
Article publication date: 1987-12-01
Vol. 5 No. 3 (yearly), pp. 417-431.
185
Keywords
clay, fireclay, bricks
Abstract
The physical and technical properties of clay materials from different localities in Iraq were investigated for making fire-clay refractories. Medium-heat duty fireclay bricks could be produced using suitable grog/raw clay ratios. To achieve high strength, good volume stability, and suitable density and porosity, the bricks should be pressed under 250 kg/cm2 and fired to at least 1300 °C. The role of the relatively more plastic clays as a binder was also studied and was found to improve the sintering properties and to decrease the firing temperatures of the finished bricks.