Research on the Insulation Materials with Sugar filter mud as pore-forming agent and Jilin Clay as aggregate

摘要

Insulation materials with flexural strength 5.238 MPa and porosity 39.24% obtained at 1050°C for 0.5 h show that its bulk density of the materials decreased down to 1.252 g/cm~3 using clay as aggregate. Due to change the amount of sugar filter mud, the porosity arises from 37.07% to 39.24% and the thermal conductivity decreases from 0.086 to 0.052 W·m~(-1)·K~(-1). The clay and wastes were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and chemical elemental analysis. The main crystalline phases of sample observed by XRD are quartz, mullite and anorthite. The insulation materials were manufactured from clay and the optimal proportion of wastes.