Full Name

ASTM C294 – Standard Descriptive Nomenclature for Constituents of Concrete Aggregates


This descriptive nomenclature provides brief descriptions of some of the more commonly occurring, or more important, natural and artificial materials of which mineral aggregates are composed.

The descriptions provide a basis for understanding these terms as applied to concrete aggregates.

When appropriate, brief observations regarding the potential effects of using the natural and artificial materials in concrete are discussed.


aggregates; artificial aggregates; carbonates; clays; concrete; feldspars; ferromagnesian minerals; igneous rocks; iron oxides; iron sulfides; metamorphic rocks; micas; minerals; nomenclature; recycled concrete; rocks; sedimentary rocks; silica; sulfates; zeolites