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" F. as practicable, and observed at intervals for at least 28 days. (c) A third pat is exposed in any convenient way in an atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 23. These pats, to satisfactorily pass the requirements,... "
Ordinary Foundations: Including The Coffer-dam Process for Piers - Page 282
by Charles Evan Fowler - 1905 - 314 pages
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Mineral Resources, Issues 21-25

Geological Survey of New South Wales - 1916 - 1292 pages
...near 70° F. as practicable. These pats are observed at intervals for at least 28 days, and should remain firm and hard, and show no signs of distortion, checking, cracking, or disintegration. Natural Cement Rock in New South Wales. Natural cement has not yet been manufactured in Australia,...
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International Library of Technology: A Series of Textbooks for ..., Volume 16

Agriculture - 1908 - 604 pages
...24 hours, (b) in air at normal temperature for 28 days, (c ) in water at 70° F. for 28 days, must remain firm and hard and show no signs of distortion, checking, cracking, or disintegration. 14. Weight. — The average weight of natural cement, packed, is 74 pounds per cubic foot. A barrel...
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Cements, Limes, and Plasters: Their Materials, Manufacture, and Properties

Edwin Clarence Eckel - Cement - 1905 - 802 pages
...atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain...(SO3), nor more than 4 per cent of magnesia (MgO). PAKT VII. PUZZOLAN CEMENTS. CHAPTER XLI. PUZZOLAMC MATERIALS IN GENERAL. PnzzoLANic materials include...
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Cements, Limes, and Plasters: Their Materials, Manufacture, and Properties

Edwin Clarence Eckel - Cement - 1905 - 798 pages
...atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain...more than 1.75 per cent of anhydrous sulphuric acid (SOa), nor more than 4 per cent of magnesia (MgO). PART VII. PUZZOLAN CEMENTS. CHAPTER XLI. PUZZOLANIC...
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Calcareous Cements: Their Nature, Manufacture & Uses with Some Observations ...

Gilbert Richard Redgrave - Cement - 1905 - 430 pages
...atmosphere of steam, above boiling water, in a loosely-closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain...Magnesia. — The cement shall not contain more than 175 per cent, of anhydrous sulphuric acid (S03), nor more than 4 per cent, of magnesia (MgO). Appendix...
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A Hand-book for Cement Users

Charles Carroll Brown - Cement - 1905 - 440 pages
...requirements, shall remain firm and hard and show no signs of distortion, checking, cracking or disintegrating. 25. Sulphuric Acid and Magnesia. — The cement shall...(SO3 ), nor more than 4 per cent. of magnesia (MgO). SPECIFICATIONS OF THE CORPS OF ENGINEERS US ARMY. The great variations in requirements for cement upon...
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Applied Mechanics

Gaetano Lanza - Engineering - 1905 - 974 pages
...atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain...show no signs of distortion, checking, cracking or disintegrating. * For example the minimum requirement for 24-hour neat cement test should be some value...
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Report of the Bureau of Mines, Volume 14

Ontario. Department of Mines, Ontario. Bureau of Mines - Geology - 1905 - 670 pages
...an atmosphere of steam above boiling water, in a loosely cltosed vessel for five hours. These pats to satisfactorily pass the requirements shall remain...show no signs of distortion, checking, cracking or disintegrating. Sulphuric Acid and Magnesia. The cement shall not contain more than 1.75 per cent,...
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Sessional Papers, Volume 37, Part 2

Ontario. Legislative Assembly - Ontario - 1905 - 1162 pages
...in an atmosphere of steam above boiling water, in a loosely clbsed vessel for five hours. These pats to satisfactorily pass the requirements shall remain...show no signs of distortion, checking, cracking or disintegrating. USES OF CEMENT In general, cement for construction purposes is employed in two ways,...
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A Hand-book for Cement Users

Charles Carroll Brown - Cement - 1905 - 384 pages
...atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain...show no signs of distortion, checking, cracking or disintegrating. 25. Sulplmric Acid and Magnesia. — The cement shall not contain more than 1.75 per...
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