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Books Books 1 - 10 of 10 on This reestablishment in favor of the hard limestones is doubtless due, in great part,....
" This reestablishment in favor of the hard limestones is doubtless due, in great part, to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement rock," and... "
Congressional Serial Set - Page 33
1904
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Bulletin - Geological Survey of Alabama, Issues 7-10

Geology - 1903
...to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement...shales with which they are mixed, is given in the table. Analyses of pure hard limestones and clayey materials. Limestones. Silica (SiO2) 1.72 0.86 0.56...
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Bulletin, Issues 241-244

Geology - 1904
...Iron oxide (Fe2O3) Lime carbonate (CaCOs) 62.08 3.8 89.8 0.76 88.0 Magnesium carbonate (MgCO3) .. 1.10 argillaceous limestones like the Lehigh district "cement...they are mixed, is given in the following table:' Analyses of pure hnrd limestones and clayey materials. The first limestone analysis given in the above...
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Experiments on Schistosity and Slaty Cleavage

George Ferdinand Becker - Schistosity - 1904 - 34 pages
...Iron oxide (Fe2O,) Lime carbonate ( CaCOa ) 62.08 3.8 89.8 0.76 88.0 Magnesium carbonate (MgCOa) -- argillaceous limestones like the Lehigh district "cement...which they are mixed, is given in the following table: Analyse* of pure hard lirneftimes and clayrij nuitrrialt. The first limestone analysis given in the...
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The Materials and Manufacture of Portland Cement. By Edwin C. Eckel: The ...

Edwin Clarence Eckel, Eugene Allen Smith - Cement - 1904 - 93 pages
...to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement...shales with which they are mixed, is given in the table. Analyses of pure hard limestones and clayey materials. Limestones. Silica (SiO2) 1.72 0.86 0.5G...
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Iowa Geological Survey, Volume 15

Geology - 1905
...to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement...clays or shales with which they are mixed, is given below. ANAYLSES OF PURE HARD LIMESONES AND CLAYEY MATERIALS. Limestones Silica (SiO,) 1.72 0.86 0.56...
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Bulletin - United States Geological Survey, Issue 243

Geological Survey (U.S.) - Geology - 1905
...argillaceous limestones like, the Lchigh district "cement rock," and it was very difficult to pulverize thorn finely and cheaply with the crushing appliances in...the clays or shales with which they are mixed, is {riven in the following table: AnalyneĽ nf pure hard Hmrntimes itud clayey materials. The first limestone...
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The clay deposits of the Virginia coastal plain

Heinrich Ries, William Bullock Clark, Benjamin LeRoy Miller - Clay - 1906 - 184 pages
...to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement...which they are mixed, is given in the following table: Analyses of pure hard limestones and clayey materials. Utah. California. Colorado. Cement rock. Limestone....
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Annual Report for ... with Accompanying Papers, Volume 17

Geology - 1907
...2.03 Analyses of "cement rock" and limestone from the western United States. PURE HARD LIMESTONES. A series of analyses of representative pure hard limestones,...clays or shales with which they are mixed, is given below : Analyses of pure hard limestones and clayey materials. Limestones Clays and shales The first...
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Iowa Geological Survey, Volume 17

Geology - 1907
...(MgCO3) Analyses of "cement rock" and limestone from the western United States. PURE HARD LIMESTONES. A series of analyses of representative pure hard limestones,...clays or shales with which they are mixed, is given below : Analyses of pure hard limestones and clayey materials. The first limestone analysis given in...
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Bulletin, Issue 1, Part 1

Geology - 1909
...to recent improvements in grinding machinery, for the purer limestones are usually much harder than argillaceous limestones like the Lehigh district "cement...difficult to pulverize them finely and cheaply with thecrushing appliances in use when the Portland cement industry was first started in America. A series...
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