 | Geological Survey of New South Wales - 1916 - 1292 pages
...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 the... | |
 | Wood - 1900 - 708 pages
...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, distortion... | |
 | American Society of Civil Engineers - Civil engineering - 1903 - 896 pages
...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... | |
 | Architecture - 1903 - 340 pages
...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... | |
 | Geology - 1904 - 430 pages
...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... | |
 | Ohio. Division of Geological Survey - Geology - 1904 - 416 pages
...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 - Cement - 1904 - 202 pages
...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... | |
 | Myron Samuel Falk - Cement - 1904 - 198 pages
...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... | |
 | Gilbert Richard Redgrave - Cement - 1905 - 406 pages
...then kept in air at normal temperature and observed at intervals for at least twenty-eight days. (6) Another pat is kept in water maintained as near 70°...an atmosphere of steam, above boiling water, in a loosely-closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall... | |
 | Ontario. Department of Mines, Ontario. Bureau of Mines - Geology - 1905 - 670 pages
...for gt least twenty-eight days. (b) Another pat is kept in water maintained as near seventy degrees F. as practicable, and observed at intervals for at...atmosphere of steam above boiling water, in a loosely cltosed vessel for five hours. These pats to satisfactorily pass the requirements shall remain firm... | |
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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. 
