 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, shall remain firm and hard, and show no signs of distortion,...  Pamphlets on Wood Preservation - Page 221900Full view - About this book
 | 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... | |
 | American Society of Civil Engineers - Civil engineering - 1903 - 896 pages
...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 of steam, 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
...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 of steam 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... | |
 | Albert Bleininger - Cement - 1904 - 414 pages
...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 of steam, 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
...at ordinary temperature, and observed at intervals. 73. — Accelerated Test. — A pat is exposed in any convenient way in an 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... | |
 | Ohio. Division of Geological Survey - Geology - 1904 - 416 pages
...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 of steam, 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 - 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... | |
 | Columbus, O. Dept. of public service - 1905 - 162 pages
...degrees F., as practicable, and observed at intervals for at least twenty-eight (28) days, or exposed in any convenient way in an atmosphere of steam, above...water, in a loosely closed vessel for five (5) hours, shall remain firm and hard and show no signs of distortion, checking, cracking or disintegration. The... | |
 | Mineral industries - 1905 - 612 pages
...70° 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. These pats, to pass the requirements satisfactorily, shall remain firm and hard and show no... | |
 | Charles Evan Fowler - Bridges - 1905 - 370 pages
...as practicable, and observed at intervals for at least twenty-eight 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. 24. These parts, to satisfactorily pass the requirements, shall remain firm and hard and show... | |
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