REGENERATING AND REACTIVATING CEMENT

A method of regenerating and reactivating inactive cement is disclosed. The method is performed in a disintegrator which includes a pin mill having beating pins arranged on two parallel counterrotating grinding disks in concentric alternating rings of increasing diameter. Inactive cement particles o...

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Bibliographische Detailangaben
1. Verfasser:	KARL ENTZMANN
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CRUSHING, PULVERISING, OR DISINTEGRATING CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL LIME, MAGNESIA METALLURGY MILLING GRAIN PERFORMING OPERATIONS PREPARATORY TREATMENT OF GRAIN FOR MILLING REFRACTORIES SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A method of regenerating and reactivating inactive cement is disclosed. The method is performed in a disintegrator which includes a pin mill having beating pins arranged on two parallel counterrotating grinding disks in concentric alternating rings of increasing diameter. Inactive cement particles of a grain size of 7 to 10 mm are subjected to 3 to 8 mechanical beats within a time period of 0.01 to 0.001 seconds in the disintegrator and broken into separate particles of the original fineness or finer. In this manner, the separate particles are released from hydrated surface layers the cement particles thereby liberating non-hydrated layers.