 | Geological Survey of New South Wales - 1916 - 1292 стор.
...A pat is then»kept in air at normal temperature for twenty-eight days, while another pat is placed in an atmosphere of steam above boiling water, in a loosely closed vessel, for five hours. (2) Time of Setting. — This test is made with a Vicat needle apparatus, and is for determining... | |
 | 1900 - 708 стор.
...plate about four inches (4") square, from cement paste of normal consistency. This pat is composed in any convenient way in an atmosphere of steam, above boiling water in a loosely closed vessel for five (5) hours, and at the end of that time shall remain firm and hard, and show no signs of cracking,... | |
 | American Society of Civil Engineers - 1903 - 896 стор.
...temperature of 45° Cent. (115° Fahr.) and maintained at this temperature for 24 hours; or (b), a pat is exposed in any convenient way in an atmosphere...above boiling water, in a loosely closed vessel, for 3 hours. 74. —To pass these tests satisfactorily, the pats should remain firm and hard, and show... | |
 | 1903 - 340 стор.
...Committee of the American Society. After keeping the pat of cement in moist air for twenty-four hours, it is exposed in any convenient way in an atmosphere...above boiling water in a loosely closed vessel for three hours. It will be seen that this requires the use of no apparatus, not even a thermometer, except... | |
 | Ohio. Division of Geological Survey - 1904 - 416 стор.
...raised to a temperature of 45° C. (115° F.) and maintained at this temperature for 24 hours; or (b), a pat is exposed in any convenient way in an atmosphere...above boiling water, in a loosely closed vessel, for 3 hours. 74. To pass these tests satisfactorily, the pats should remain firm and hard, and show no... | |
 | Myron Samuel Falk - 1904 - 202 стор.
...maintained in air at ordinary temperature, and observed at intervals. 73. — Accelerated Test. — A pat is exposed in any convenient way in an atmosphere...above boiling water, in a loosely closed vessel, for three hours. 74. — To pass these tests satisfactorily the pats should remain firm and hard, and show... | |
 | 1904 - 430 стор.
...raised to a temperature of 45° C. (115° F.) and maintained at this temperature for 24 hours; or (b), a pat is exposed in any convenient way in an atmosphere...above boiling water, in a loosely closed vessel, for 3 hours. 74. To pass these tests satisfactorily, the pats should remain firm and hard, and show no... | |
 | Myron Samuel Falk - 1904 - 198 стор.
...and observed at intervals. 73. — Accelerated Test. — A pat is exposed in any convenient way in on atmosphere of steam, above boiling water, in a loosely closed vessel, for three hours. 74. — To pass these tests satisfactorily the pats should remain firm and hard, and show... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - 1905 - 642 стор.
...water maintained as near 70° Fahr. as practicable, and observed at intervals for at least 28 days. (c) A third pat is exposed in any convenient way in an...above boiling water, in a loosely closed vessel for five hours. These pats to satisfactorily pass the requirements shall remain firm and hard and show... | |
 | Charles Evan Fowler - 1905 - 370 стор.
...maintained as near 70° F. as practicable, and observed at intervals for at least twenty-eight days. (c) A third pat is exposed in any convenient way in an...above boiling water, in a loosely closed vessel for five hours. 24. These parts, to satisfactorily pass the requirements, shall remain firm and hard and... | |
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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. 
