On the ground of precedent studies, chromium exchanged zeolite tuff was used as active addition in the manufacture of blenden cements. Their mechanical and chemical properties were investigated and were found to be very good, even better than those of Portland-zeolite tuff cement, taken as reference. A process, in which quarry dust, a very cheap by-product of the cutting of zeolite tuff, is intended to remove chromium from wastewaters and to be used as active addition to Portland clinker to prepare blended cements, is proposed.
Utilizzation of chromium exchanged zeolite tuff in the manufacture of blended cements
MARROCCOLI, Milena;
1991-01-01
Abstract
On the ground of precedent studies, chromium exchanged zeolite tuff was used as active addition in the manufacture of blenden cements. Their mechanical and chemical properties were investigated and were found to be very good, even better than those of Portland-zeolite tuff cement, taken as reference. A process, in which quarry dust, a very cheap by-product of the cutting of zeolite tuff, is intended to remove chromium from wastewaters and to be used as active addition to Portland clinker to prepare blended cements, is proposed.File in questo prodotto:
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