 | Geology - 1906 - 1190 pages
...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... | |
 | Cement - 1903 - 534 pages
...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... | |
 | United States - 1904 - 1040 pages
...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... | |
 | George Ferdinand Becker - Schistosity - 1904 - 732 pages
...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 - Cement - 1904 - 148 pages
...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... | |
 | Geology - 1904 - 768 pages
...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... | |
 | Geology - 1905 - 602 pages
...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... | |
 | Geological Survey (U.S.) - Geology - 1905 - 462 pages
...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... | |
 | Samuel Franklin Emmons - Geology, Economic - 1905 - 648 pages
...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 - Cement - 1905 - 798 pages
...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... | |
| |
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... 
