The possibility of Manufacturing Building Bricks from Al-Qend Hills Clays in North Iraq by using the extrusion and pressing methods

This study deals with the properties of Al-Qend Hills clays (Nineveh Governorate, North of Iraq) that effect on the production of building bricks and determines the best method for bricks industry. Two methods used to the manufacturing of clay brick samples, the first is the extrusion with dimensions (2.5×4×7.5) cm and the second is the pressing (cylinder shape) with dimensions (3.5×5.5) cm after that dried at room temperature for 48 hr. and for 24 hr. at 110 °C using the laboratory oven. After the drying process, the samples will burn at different temperatures (750, 800, 850 and 1100) °C according to burning program for 2 hr. in muffle furnace, The results appear that extruded samples at 800 °C is successful because conform to the requirements of Iraqi standards specification No.25, 1993.