The Influence of Aluminium Dross on Phase Compositions and Microstructure of Cement Composites

Abstract

The influence of aluminium dross on the phase compositions and microstructure of cement composites were studied in this research. The cement/aluminium dross composites were prepared by adding ground granulated blast-furnace slag (GGBS) from aluminium casting industrial. The sample was added fiber optic and mixed with aluminium dross at 0.1-0.8 wt% of cement. Then, the mixture was poured into a metallic mold (5mm*5mm*5mm). After incubation with saturated lime water for 3 days, the samples were wrapped with plastic films for 7 and 28 days. The chemical compositions of raw materials were characterized by using x-ray fluorescence spectrometry (XRF). The phase compositions and crystalline structure cement/aluminium dross composites were studied by using x-ray diffraction (XRD) technique. Scanning electron microscopy (SEM) was used for characterization of microstructure of these composites.