puits (1) test (1) norme (1) cendre (1) matériau (1) verre (1) amende (1) évaluation (1) béton (1) ciment (1) Komotiní (1) Composition (1) Parts (1) Area (1) Specimens (1) Parts (1) Cases (1) Minerals (1) Area (1) Specimens (1) Zeolites (1) Volcanic ash, tuff, etc (1) Smectite (1) Quartz crystals (1) Quartz (1) Pumice (1) Portland cement (1) Plagioclase (1) Percentage (1) Mordenite (1)