Glossary

Beneficiation  The separation of raw materials into recoverable substances and minerals or waste using a variety of processing techniques.

C  Abbreviation for carbon, e.g. %C is percentage carbon content.

CEM I  A traditional Portland cement that contains no blended additions, such as fly ash, to lower the high carbon footprint of the cement.

Cementitious A term used to describe materials, such as fly ash, that share some of the characteristics of cement.

CenTron™ A range of clean, classified hollow glass cenosphere products: <1 to 300 micron, ideal for numerous applications including lightweight formulations for fillers and coatings.

The ‘Company’ or RockTron RockTron International Limited, the commercial arm of the RockTron Group.

Fly Ash  This website uses the term Fly Ash to describe PFA (Pulverised Fuel Ash) which is the more precise term for fly ashes produced from coal-fired power stations burning pulverised hard coals, such as anthracite or bituminous.

Froth Flotation  A process for selectively separating hydrophobic materials from hydrophilic.

H&S  Health and Safety.

IP  Intellectual Property.

IPR  Intellectual Property Rights.

JV  Joint Venture.

M  SI unit abbreviation for mega or million.

MagTron™ A range of dense, solid magnetite spheres: <1 to +100 micron, ideal for use in sound absorption and other shielding applications.

MinTron™ A range of coated and uncoated micron sized classified solid alumino-silicate glass spheres: <1 to +200 micron, ideal for use as fillers in plastics, rubber, coatings and adhesives applications.

MMt  Million metric tonnes.

MMt/a  Million metric tonnes per annum.

Mohs Hardness Scale A log scale definition of hardness used in materials science, characterised by scratch resistance of minerals through the ability of a harder material to scratch a softer material.

£ M  Million pounds sterling.

m2/g  Square metres per gram.

PFA  Pulverised Fuel Ash, the lightweight residue from burning pulverised hard coal in power stations.

R&D  Research and Development.

Remediation The process of converting waste or contaminated land into ground that is ready for reuse as industrial, commercial or residential land.

t  Metric tonne.

t/a  Metric tonnes per annum.

t/h  Metric tonnes per hour.