تحضير الطابوق الناري الطيني و دراسة تاثير درجات الحرارة علي بعض خواصه الفيزياوية

Study are concerned with the preparation of Refractory (clay fire Brick) That have higher thermal properties from local raw material .Samples are prepared From blend of Kaoline & shamot with ratios (30% Kaoline) and (70% shamot) adding Water to the blend having ratio of (12%) and five temperature of firing were chose (800, 900, 1050, 1200, 1300)°C .Some thermal properties are studied to show the effect of firing temperature towards getting a better thermal properties. It was found that As the firing temperature increase, the porosity decrease and the thermal conductivity increase. As a result the Refractory endurance of thermal Shock increased as well as the Thermal Expansion Coefficient and heat capacity by increasing firing temperature.