公开(公告)号：US3705815A

公开(公告)日：1972-12-12

申请号：US3705815D

申请日：1971-09-15

申请人： LAFARGE CIMENTS SA

发明人： ALEGRE RENE ,  ALLEGRE RAYMOND

IPC分类号： C04B7/32

CPC分类号： C04B7/32

摘要： A LIME AND SILICA-RICH HIGH-ALUMINA CEMENT AND THE PROCESS FOR MANUFACTURING IT. A LIME AND SILICA-RICH HIGH ALUMINA CEMENT WHICH CONSISTS, IN PARTS BY WEIGHT, OF ABOUT: 8 TO 10% SIO2 ABOUT 1 TO 2% TIO2 26 TO 29% AL2O3 14 TO 16% FE2O3 O% OR TRACES FEO 45 TO 48% CAO THE MODULI: SIO2/AL2O+FE2O3 BEING IN THE RANGE OF ABOUT 0.18 TO 0.25 AL2O3/CAO FROM 0.55 TO 0.65 AL2O3/SIO2 BETWEEN ABOUT 2.6 AND 3.6 AND THE MINERALOGICAL COMPOSITION CONTAINING CA, C2S, C12A7 AND FERRITES. THE CEMENT HAS A BROADER RANGER OF USE AND ITS PREPARATION IS CHEAPER.