Studies on Alkall Activated Salg

NIn the future, it will not be possible to pursue technological goals without giving equal important to the public interest in preserving the ecological balance on the planet earth.Large quantities of industrial by-products are granulated or air cooled - slag that generated every day in the world during the industrial production of metallic iron during the reduction of iron oxides ore by coke.When slag is rapidly cooled by water it is called granulated slag, it is mainly composed from amorphous material and has a hydraulic properties. On the other side when slag is allowed to cool slowly it solidifies into a gray crystalline material known as AAS is a new type of binder used in concrete manufacturing. Its production utilizes industrial by-products requires less energy than ordinary Portland cement and when compared with OPC concrete exhibits low heat of hydration, high early strength and excelThe subject of producing pozzolanic cements has been considerable scientific and technological interest because some additions increase the chemical resistance to sulphate and chloride attack.The object of this investigation is to study the alkali activation of WCS in comparison to ACS rather than resistance to chloride and sulphate attack.Chemical and mineralogical characterization of WCS and ACS by-products using chemical analysis and XRD technique were used.The hydraulic properties of the slags with and without SF in different percentages of caustic soda followed by the determination compressive strength, combined water, free slag contents, bulk density, total porosity of some selected pastes up to 180 days The hydration products were also followed by the DTA and IR spectroscopic determinations.The materials used in this investigation were granulated slag and air-cooled slag produced from Iron and Steel Company, condensed silica fume provided from Ferrosilicon Alloys Company.