COMPOSITION COMPRISING A PARTICULATE MATERIAL AND A BINDER MATERIAL

摘要

The present invention relates to premix comprising a particulate material and a binder material characterised in that (1) the particulate material comprises: - 1 to 50% by weight of a first material comprising ultrafine particles, said ultrafine particles having a Dv90 less than 8 µm or a BET specific surface area greater than 5 m2/g; - 1 to 70% by weight of a second material comprising fine particles, said fine particles having a Dv10 and a Dv90 from 1 to 100 µm or a BET specific surface area less than or equal to 5 m2/g; - 1 to 70% by weight of a third material comprising medium particles, said medium particles having a Dv10 and a Dv90 greater than 100 µm and less than or equal to 5 mm; (2) the binder material comprises: - a phosphate ion, an oxalate ion or a mixture thereof; and - an alkaline earth metal.