 These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating.  Proceedings of the Annual Meeting - Sayfa 281American Society for Engineering Education, Society for the Promotion of Engineering Education (U.S.) tarafından - 1906Tam görünüm - Bu kitap hakkında
 | Jerome Cochran - 1913 - 344 sayfa
...kept in water maintained as near 70° F. as practicable for twenty-eight (28) days. These pats shall remain firm and hard, and show no signs of distortion, checking, cracking, discoloration or disintegration after twenty-eight (28) days in either air or water. 27. Boiling Test.... | |
 | International Correspondence Schools - 1914 - 880 sayfa
...air for 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... | |
 | Milo Smith Ketchum - 1914 - 958 sayfa
...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, checking, cracking, or disintegrating. 24. Sulphuric Acid and Magnesia. The cement shall not contain more than 1.75 per cent... | |
 | Charles Evan Fowler - 1914 - 982 sayfa
...observed at intervals for at least twenty-eight days, and, to satisfactorily pass the tests, should remain firm and hard and show no signs of distortion, checking, cracking or disintegrating. PORTLAND CEMENT 17. DEFINITION. — This term is applied to the finely pulverized product... | |
 | Henry Turner Eddy, Claude Allen Porter Turner - 1914 - 468 sayfa
...a loosely closed vessel for five hours. These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating. Sulphuric Acid and Magnesia The cement shall not contain more than 1.75% of anhydrous... | |
 | Henry Turner Eddy, Claude Allen Porter Turner - 1914 - 470 sayfa
...a loosely closed vessel for five hours. These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating. Sulphuric Acid and Magnesia The cement shall not contain more than 1.75% of anhydrous... | |
 | Franklin Institute (Philadelphia, Pa.) - 1915 - 958 sayfa
...tapering to a thin edge, shall be kept in moist air for twenty- four hours, and subsequently shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegration when kept in air at normal temperature or in water at about 70° F. (21° C.) for at least twentyeight... | |
 | Leonard Metcalf, Harrison Prescott Eddy - 1915 - 608 sayfa
...a loosely closed vessel for 5 hours. 11. These pats, to pass the requirements satisfactorily, shall remain firm and hard, and show no signs of distortion, checking, cracking, or disintegrating. 12. The cement shall not contain more than 1.75 per cent, of anhydrous sulphuric acid... | |
 | Malverd Abijah Howe - 1915 - 186 sayfa
...These pats are observed at intervals for at least 28 days, and, to pass the tests satisfactorily, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating. PORTLAND CEMENT 17. Definition. — This term is applied to the finely pulverized product... | |
 | Adelbert Philo Mills - 1915 - 718 sayfa
...a loosely closed vessel for five hours. " These pats to satisfactorily pass the requirements shall remain firm and hard, and show no signs of distortion, checking, cracking, or disintegrating." 129. Influence of Seasoning. Since, as above noted, unsoundness is primarily due to... | |
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