Thermal Insulation and Strength Characteristics of Refractory Incorporating Natural Silica

This work emphasizes on the studying of using silica to develop for the production of refractory materials. Materials are tested at the cured times of 7, 14 and 28 days. Results show that the cold crushing strength, flexural strength and bulk density increase with increasing cured times. On the other hand, the permanent linear change (PLC) decreases with increasing cured times. It is also found that adding more silica contents can increase the durability of cracking property due to temperature changing. This study concludes that the silica refractory materials (SRM) shows the enough quality to produce as the refractory material, type of the Conventional Cast/Pound (815 °C) for the agroindustry using the thermal energy of Thailand