 | Gaetano Lanza - 1905 - 974 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. change or wide range of temperature in the room in which the tests are made, a very dry... | |
 | Gaetano Lanza - 1905 - 980 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. 4. Fineness.—The sieves should be kept thoroughly dry. 5. Time oj Setting.—Great care... | |
 | Gilbert Richard Redgrave - 1905 - 430 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. 4. Fineness.—The sieves should be kept thoroughly dry. 5. Time of Setting.—Great care... | |
 | Louis Carlton Sabin - 1907 - 598 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. FINENESS 4. The sieves should be kept thoroughly dry. TIME OF SETTING 5. Great care should... | |
 | Louis Carlton Sabin - 1907 - 596 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. FINENESS 4. The sieves should be kept thoroughly dry. TIME OF SETTING 5. Great care should... | |
 | Ernest McCullough - 1908 - 524 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. FINENESS. 4. The sieves should be kept thoroughly dry. TIME OP SETTING. 5. Great care... | |
 | W. Purves Taylor - 1908 - 344 頁
...under-burning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. Fineness. 4.—The sieves should be kept'thoroughly dry. Time of Setting. 5.—Great care... | |
 | Edward Godfrey - 1908 - 484 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. 4. The sieves should be kept thoroughly dry. 5. Great care should be exercised to maintain... | |
 | Hiram Bertrand Andrews - 1908 - 68 頁
...underburning. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. FINENESS 4. The sieves should be kept thoroughly dry. TIME OF SETTING 5. Great care should... | |
 | Lawrence Cement Company, Philadelphia - 1909 - 242 頁
...adulteration. The results of tests of specific gravity are not necessarily conclusive as an indication of the quality of a cement, but when in combination...with the results of other tests may afford valuable indications. FINENESS. 4. The sieves should be kept thoroughly dry. TIME OF SETTING. 5. Great care... | |
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of the quality of a cement, but when in combination with the results of other tests may afford valuable 
