Coal in Australia. Right now, coal is Australiaâs primary fuel source for generating electricity at around 73 percent. Black coal is found across Australia. Brown coal, sometimes called lignite, is a relatively soft material, which has a heating value of about one-quarter of black coal.
noun. The definition of abrasive is something that is harsh or rough, often to an unpleasant degree. An example of abrasive is the attitude of your boss who is always short tempered and yelling at you. Sand paper or SOS pads are examples of abrasives.
Abrasive cleaning is âblastingâ with a high pressure air hose and media such as sand or other granules to remove paint and dirt from a variety of surfaces either to prepare it for another opaque coating or (as we use it) to reveal an architectural surface.brasive cleaning is âblastingâ with a high pressure air hose and media such as sand or other granules to remove paint and dirt from a variety of surfaces either to prepare it for another opaque coating or (as we use it) to reveal an architectural surface.