Study on the effect of metallurgical waste on the cracking resistance of magnesium oxysulfate cement coatings

Abstract

In this paper, in order to achieve the resource utilization of metallurgical industry waste, the cracking resistance of magnesium oxysulfate cement coatings using granulated blast furnace slag powder and iron tailings powder as fillers was studied, x-ray Diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the hydration products. The results show that an appropriate amount of slag powder and iron tailings powder can make the internal structure of the coating more compact, the surface smooth and effectively reduce the generation of cracks.

Keywords

• granulated blast furnace slag
• MgO/MgSO₄ cement
• coatings
• x-ray research
• cracks