تقييم خصائص أطيان تلول جبل القند لتصنيع طابوق البناء باعتماد طريقتي البثق و الكبس في التشكيل

Abstract EN

Due to the variation in the characteristics of Al-Kend Hill clays (Nineva Governorate), this study was prepared to determine the properties of these clays, and to identify the best method for the production of building bricks.

Two methods of forming clay were used to produce clay brick samples: extrusion (2.5 × 3.8 × 7.5) cm and pressing cylinder shape (3.5 × 5.4) cm, then dried at room temperature for 48 hr and for 24 hr at 110 °C using the laboratory oven.

After drying the samples, they were burned at different elevated temperatures (750, 800, 850 and 1100) °C according to certain firing program for 2 hr socking time.

The effect of several parameters on the properties of the laboratory samples were studied: (particle size distribution of the raw material, effect of submerging the raw material in water, effect of firing temperatures (750, 800, 850, 1100) °C and the relationship of all variables with different burning temperatures and the methods of forming (extrusion, pressing).

The results show that firing extruded samples at 800 °C (K8-2, K3-3, K1-1) are successful being within the specification limits of the Iraqi standards No.25, 1993