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" By a Portland cement is meant the product obtained from the heating or calcining up to incipient fusion of intimate mixtures, either natural or artificial, of argillaceous with calcareous substances, the calcined product to contain at least 1.7 times... "
Experiments on Schistosity and Slaty Cleavage - Page 22
by George Ferdinand Becker - 1904 - 34 pages
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Professional Papers of the Corps of Engineers of the United States Army

United States. Army. Corps of Engineers - Military engineering - 1901 - 48 pages
...FOR AMERICAN PORTLAND CEMENT. (1) The cement shall be an American Portland, dry and free from lumps. By a Portland cement is meant the product obtained...incipient fusion of intimate mixtures, either natural or artifical, of argillaceous with calcareous substances, the calcined product to contain at least 1.7...
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Bulletin - Geological Survey of Alabama, Issues 7-10

Cement - 1903 - 534 pages
...nearest approach to an official government definition of the material that we have in this country : "By a Portland cement is meant the product obtained...heating or calcining up to incipient fusion of intimate mixture;-, either natural or artificial, of argillaceous with calcareous substances, the calcined product...
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Congressional Serial Set, Issue 4690

United States - 1904 - 1040 pages
...alumina in such proportions as to give a good Portland cement on burning. Actually, however, such Ħi perfect cement rock is of extremely rare occurrence....natural or artificial, of argillaceous with calcareous sul>stanceg, the calcined product to contain at least 1.7 times as much of lime, by weight, as of the...
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Architects' and Engineers' Hand-book of Re-inforced Concrete Constructions ...

L. J. Mensch - Concrete - 1904 - 230 pages
...CEMENT. US ARMY CORPS OF ENGINEERS. The cement shall be an American Portland, dry and free from lumps. By a Portland cement is meant the product obtained...argillaceous with calcareous substances; the calcined product should contain at least 1.7 times as much lime, by weight, as of the materials which give the lime...
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Engineering Contracts and Specifications: Including a Brief Synopsis of the ...

John Butler Johnson - Engineering - 1904 - 598 pages
...FOR AMERICAN PORTLAND CEMENT. (1) The cement shall be an American Portland, drv and free from lumps. By a Portland cement is meant the product obtained from the heating or calcining up to incipient i fusion of intimate mixtures, either natural or artificial, of argillaceous with calcareous substances,...
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A Hand-book for Cement Users

Charles Carroll Brown - Cement - 1905 - 384 pages
...Riche, of the Corps of Engineers, United States Army. The report says: Portland cements are products obtained from the heating or calcining up to incipient...calcined product to contain at least 1.7 times as much lime by weight as of the materials which give the lime its hydraulic properties, and to be finely pulverized...
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Cements, Limes, and Plasters: Their Materials, Manufacture, and Properties

Edwin Clarence Eckel - Cement - 1905 - 796 pages
...being the nearest approach to an official definition of the material that we have in this country: "By a Portland cement is meant the product obtained...calcining up to incipient fusion of intimate mixtures, cither natural or artificial, of argillaceous with calcareous substances, the calcined product to contain...
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Cements, Limes, and Plasters: Their Materials, Manufacture, and Properties

Edwin Clarence Eckel - Cement - 1905 - 802 pages
...of intimate mixtures, c-ither natural or artificial, or argillaceous with calcareous substances, ihe calcined product to contain at least 1.7 times as much of lime, by v.-cight, as of the materials which give the lime its hydraulic propertics, and to be finely pulverized...
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Practical Cement Testing

W. Purves Taylor - Cement - 1905 - 348 pages
...for American Portland Cement. (1) The cement shall be an American Portland, dry, and free from lumps. By a Portland cement is meant the product obtained from the heating or cakining up to incipient fusion of intimate mixtures, either natural or artificial, of argillaceous...
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Investigation of Panama Canal Matters: Hearings Before the ..., Volume 2

United States. Congress. Senate. Committee on Interoceanic Canals - Panama Canal (Panama) - 1906 - 984 pages
...COMMISSION. Specifications for Portland cement. 1. The cement shall be Portland, dry and free from lumps. By a Portland cement is meant the product obtained...weight, as of the materials which give the lime its hvdraulic properties, and to be finely pulverized after said calcination, and thereafter additions...
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