 Portland cement. — Portland cement is produced by burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. Usually this combination is made by mixing limestone or marl with...  Bulletin of the United States Geological Survey - Seite 200von Geological Survey (U.S.) - 1908Vollansicht - Über dieses Buch
 | 1906 - 1190 Seiten
...a finely ground artificial mixture consisting essentially of lime, silica, alumina, and iron oxide, in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case about three times as much of the lime carbonate should be present in the mixture as of... | |
 | 1903 - 534 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica^ alumina, and iron oxide, in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case about three times as much of the lime carbonate should be present in the mixture as of... | |
 | George Ferdinand Becker - 1904 - 732 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case the mixture should contain about three parts of the lime carbonate to one part of the... | |
 | Edwin Clarence Eckel - 1904 - 148 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica., alumina, and iron oxide, in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case about three times as much of the lime carbonate should be present in the mixture as of... | |
 | 1904 - 768 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case the mixture should contain about three parts of the lime carbonate to one part of the... | |
 | 1904 - 1040 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case the mixture should contain about three parts of the lime carbonate to one part of the... | |
 | 1905 - 602 Seiten
...burning a finely ground, artificial mixture containing essentially lime, silica, alumina, and iron oxide, in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case about three times as much of the lime carbonate should be present in the mixture as of... | |
 | Samuel Franklin Emmons - 1905 - 648 Seiten
...mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportion*. Usually this combination is made by mixing limestone or marl with clay or shale, in which case the mixture should contain about three parts of lime carbonate to one part of the clayey... | |
 | Edwin Clarence Eckel - 1905 - 798 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide, in certain definite proportions. Usually this combination is made by mixing limestone, chalk, or marl with clay or shale, in which case about three times as much of lime carbonate as of... | |
 | Heinrich Ries - 1906 - 690 Seiten
...burning a finely ground artificial mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which case the mixture should contain about three parts of the lime carbonate to one part of the... | |
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