 | Geological Survey of New South Wales - 1916 - 1292 sayfa
...near 70° F. as practicable. These pats are observed at intervals for at least 28 days, and should remain firm and hard, and show no signs of distortion, checking, cracking, or disintegration. Natural Cement Rock in New South Wales. Natural cement has not yet been manufactured... | |
 | 1908 - 604 sayfa
...in water at 70° F. for 28 days, and (d) in an atmosphere of steam above boiling water for 5 hours, must remain firm and hard and show no signs of distortion, checking, cracking, or disintegration. 11. Weiffht. — The weight of 1 cubic foot of Portland cement, packed, ranges from... | |
 | Ontario. Legislative Assembly - 1905 - 1154 sayfa
...in a loosely clfosed 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 per cent,... | |
 | Ontario. Department of Mines, Ontario. Bureau of Mines - 1905 - 670 sayfa
...in a loosely cltosed 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 per cent,... | |
 | Ontario. Legislative Assembly - 1905 - 1162 sayfa
...in a loosely clbsed 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. USES OF CEMENT In general, cement for construction purposes is employed in two ways,... | |
 | W. Purves Taylor - 1905 - 344 sayfa
...limits of 50 and 100 pounds, and so on for each period stated. satisfactorily pass the tests, should remain firm and hard and show no signs of distortion, checking, cracking or disintegrating. Portland Cement. 18. — DEF1N1T1ON. — This term is applied to the finely pulverized... | |
 | 1905 - 708 sayfa
...a loosely closed vessel for five hours. These pats, to pass the requirements satisfactorily, shall remain firm and hard and show no signs of distortion, checking, cracking or disintegrating. The cement shall not contain more than 1.75% of anhydrous sulphuric acid (SOi), nor... | |
 | Columbus, O. Dept. of public service - 1905 - 162 sayfa
...in an atmosphere of steam, above boiling 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 cement shall not contain more than one and seventy-five hundredths (1.75) per cent.... | |
 | Charles Evan Fowler - 1905 - 370 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. 18. DEFINITION. — This term is applied to the finely pulverized... | |
 | Edwin Clarence Eckel - 1905 - 798 sayfa
...loosely closed vessel for five hours. 24. These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking or disintegration. 25. Sulphuric acid and magnesia. — The cement shall not contain more than 1.75 per... | |
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These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating. 
