Effect of Steel Scoria and Slag on Structure and Properties of Low-temperature Sintered Building Ceramics

This work was aimed to study the effects of steel scoria and slag on structure and properties of low-temperature sintered building ceramics, with the main raw materials to prefabricated mud, shale, steel scoria or slag, while the fluxs are potassium feldspar and talcum. While testing flexural strength, water absorption, bulk density and line shrinkage, the building ceramics were also characterized by using XRD, SEM-EDS, XRF and other detection methods. When the samples were fired at 1120 ℃ for 60 min and the contents of steel scoria and slag were 10 wt.% and 8 wt.%, the comprehensive performance of the sample was the maximized. In this case, the flexural strengths are 89.9 MPa and 91.7 MPa, while water absorption rates are 0.28% and 0.19%.