Full Title

Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone (use of waste materials for the manufacture of cement C04B7/24); Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone > Waste materials; Refuse > organic (C04B18/10 takes precedence) > Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper > Wood, e.g. sawdust, wood shavings