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Books Books 21 - 28 of 28 on Portland cement. — Portland cement is produced by burning a finely ground artificial....
" 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... "
Structure of the Berea Oil Sand in the Flushing Quadrangle, Harrison ... - Page 206
by William Tudor Griswold - 1908 - 30 pages
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Farm Buildings

Sanders Publishing Co. (Chicago), Sanders Publishing Co., Chicago - Farm buildings - 1909 - 354 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...
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Bulletin, Issue 1, Part 1

Geology - 1909
...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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Farm Buildings

Farm buildings - 1911 - 354 pages
...burning a finely ground artificial mixture containing essentially lime, silica, alumnia and iron oxide in certain definite proportions. Usually this combination...made by mixing limestone or marl with clay or shale, in which ease the mixture should contain about three parts of the lime carbonate to one part of the...
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Portland Cement Materials and Industry in the United States

Edwin Clarence Eckel - Portland cement - 1913 - 401 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 such proportion that the mixture will contain about three parts of lime carbonate to one part of...
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Waterproofing Engineering for Engineers, Architects, Builders, Roofers and ...

Joseph Ross - Waterproofing - 1919 - 442 pages
...Ground Fine for Use. silica, alumina and iron oxide in certain definite proportions (see Fig. 60). This combination is made by mixing limestone or marl with clay or shale in the proportions of about three to one respectively. The finer the cement the more impervious is...
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Waterproofing Engineering for Engineers, Architects, Builders, Roofers and ...

Joseph Ross - Waterproofing - 1919 - 442 pages
...Ground Fine for Use. silica, alumina and iron oxide in certain definite proportions (see Fig. 60). This combination is made by mixing limestone or marl with clay or shale in the proportions of about three to one respectively. The finer the cement the more impervious is...
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Lead and zinc deposits of Virginia

Thomas Leonard Watson - Lead ores - 1905 - 156 pages
...other substances. This ideal composition is seldom realized in nature and, as a rule, an artificial combination is made by mixing limestone or marl with clay or shale. In this case, one part of the clayey materials is generally added to three parts of pure limestone....
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Mineral Resources of the United States, Part 2

United States. Bureau of Mines - Mineral industries - 1911
...mixture containing essentially lime, silica, alumina, and iron oxide in certain definite proportions. This combination is made by mixing limestone or marl with clay or shale, or by substituting low magnesia blast furnace slag for the clay or shale. The clay, or its equivalent,...
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