Incinerator bottom ash (IBA) is a form of
ash produced in
incineration facilities. This material is discharged from the moving grate of
municipal solid waste incinerators. Following combustion the ash typically has a small amount of
ferrous metals contained within it. This ash can be processed to standardize the material and remove
contaminants in order for it to be used as an
aggregate. Following processing the material can be termed
IBA aggregate or
processed IBA. The aggregate uses for the material include: