CPC Subgroup
C04B 14/14 Minerals of vulcanic origin
Full Title
Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone (expanding or defibrillating materials C04B20/00) > Granular materials > Silica-rich materials; Silicates > Minerals of vulcanic origin
2 direct subcodes
Child Classifications
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- C04B 14/16 porous, e.g. pumice
- C04B 14/18 Perlite