This study investigated the properties of fine recycled aggregates (FRA), with a view to enhancing their for structural concrete applications. The explored several approaches including mixing; curing; systematic screening FRA particles below 1.18 mm reduce adhered cement paste (ACP) content; and use fly ash as 30% replacement modify microstructure concrete. To test these approaches, two series ...

Inside the finest fractions of aggregates, usually wasted by ready mix concrete companies, valuable heavy minerals content is substantial. The concentration and recovery contained in dredged fine aggregates waste, located Pyeongtaek South Korea, were investigated to develop a process that can recover concentrate most each mineral. raw material contains ilmenite, magnetite, monazite, zircon. A g...

This study evaluated the suitability of iron tailings as fine aggregate replacements for engineering applications. is necessary to find economic usage enormous amount waste from Itakpe mines. The physical properties specific gravity, bulk density, moisture content, particle size, fineness modulus, and mechanical in terms compressive strength, compaction factor, flexural relative density concret...