Image Enhancement Based On Fusion Using 2d Lpdct And Modified Pca

Abstract

Secondary Aluminium Drossis(SAD) generated when resmelting process is done in an aluminium industry to recover residual aluminium, wherein primary adross is taken as a raw material. It is completely a waste product and hazardous to dispose it into landfills. This is rich in aluminium oxide and having traces of few heavy metals. It is necessary to check the eco-friendly methods of solidification of this material. One of the feasible methods of solidifying the industrial wastes is using them in production of cement concrete. In this study, behaviour of secondary SAD as a partial replacement for Ordinary Portland Cement is evaluated. Secondary SAD is replaced by 5, 10, 15 and 20% of Ordinary Portland Cement. Consistency and setting time of cement paste samples are determined which shows the lag in setting time of paste. Workability and setting time of concrete mixes with 5, 10, 15 and 20% of secondary SAD as a binder, are evaluated. Retardation of setting time and increase in the workability are the main observations of this study. As the percentage of secondary SAD increases, the setting time also increases. This may be considered as a reason to utilize such concrete mixes in hot weather conditions wherein delayed setting time is an added advantage. Therefore, retardation of setting time is the positive impact of secondary SAD. Keeping in view of the fact that there can be decrement in strength with increased binder replacement and the workability requirements, only 20% of secondary SAD is replaced.