CDW	construction and demolition waste
CRA	coarse recycled aggregates
EFTA	European Free Trade Association
EU	European Union
FL	constituent of a recycled aggregate—floating materials
FRA	fines recycled aggregates
ITZ	Interfacial transition zone between aggregate and binder paste
NA	coarse natural aggregates
RA	recycled aggregates
Ra	constituent of a recycled aggregate—bituminous materials
Rb	constituent of a recycled aggregate—clay masonry, calcium-silicate masonry, aerated non-floating concrete
Rc	constituent of a recycled aggregate—concrete and mortar
Rg	constituent of a recycled aggregate—glass
Ru	constituent of a recycled aggregate—unbound stone
UEPG	European Aggregates Association
X	constituent of a recycled aggregate—other materials (clay, soils metals, non-floating wood, plastic, gypsum-based and rubber)