 | W. Purves Taylor - Cement - 1908 - 348 pages
...in not less than forty-five minutes nor more than two and one-half hours.) The pats made to test the soundness may be used in determining the time of setting....a wire onetwelfth inch in diameter loaded to weigh one- fourth pound. The final set has been acquired when the pat will bear, without being appreciably... | |
 | United States. Congress. Senate. District of Columbia - 1909 - 514 pages
...than forty-five minutes and must have acquired its final set in ten hours. The pats made to test the soundness may be used in determining the time of setting....wire one-twelfth inch in diameter loaded to weigh one- fourth pound. The final set has been acquired when the pat will bear, without being appreciably... | |
 | Frank Eugene Kidder - Building - 1909 - 1000 pages
...for five minutes with 30 per cent of water by weight and kept under a wet cloth until finally set. The cement is considered to have acquired its initial...will bear, without being appreciably indented, a wire 1/12 of an inch in diameter loaded with a J4 -pound weight. The final set is considered to have been... | |
 | United States. Congress. House. Committee on Appropriations - Panama Canal (Panama) - 1910 - 544 pages
...than forty-fiveminutes, and must have acquired its final set in ten hours. The pate made to test the soundness may be used in determining, the time of...will bear, without being appreciably indented, a wire -fa" in diameter loaded to weigh J pound. The final set has been acquired when the pat will bear, without... | |
 | International Correspondence Schools - Concrete - 1910 - 734 pages
...less than 45 minutes, and must have acquired its final set in 1 0 hours. The pats made to test the soundness may be used in determining the time of setting....pat will bear, without being appreciably indented, a iV-inch wire loaded to weigh \ pound. The final set has been acquired when the pat will bear, without... | |
 | George William Tillson - Pavements - 1912 - 702 pages
...which is then carefully brought in contact with the surface of the paste, and the rod quickly released. The cement is considered to have acquired its initial set when the needle ceases to pass a point 5 millimeters above the glass plate; and the final set, when the needle... | |
 | Albert Irvin Frye - Civil engineering - 1913 - 1698 pages
...not less th»^ forty-five minutes nor in more than two and one-half hours.) The pats made to test the soundness may be used in determining the time of setting....cement is considered to have acquired its initial s*t when the pat will bear, without being appreciably indented, a wire or.-*twelfth inch in diameter... | |
 | David Butler Butler - Portland cement - 1913 - 594 pages
...should be kept in moist air, at a temperature maintained as nearly as practicable at 21° C. (70° F.). The cement is considered to have acquired its initial set when the pat will bear, without appreciable indentation, a needle one-twelfth of an inch in diameter, loaded to weigh one-fourth of... | |
 | Building materials - 1913 - 420 pages
...which is then carefully brought in contact with the surface of the paste, and the rod quickly released. The cement is considered to have acquired its initial set when the needle ceases to pass a point 5 mm. above the glass plate; and the final set, when the needle does... | |
 | Albert Irvin Frye - Civil engineering - 1913 - 1694 pages
...set in ten hours. Tbe pats made to test the soundness may be used in determining the time '•'• setting. The cement is considered to have acquired its initial set when '-'.£ pat will bear, without being appreciably indented, a wire one-twelfth -íh in diameter loaded... | |
| |
The cement shall be considered to have acquired its initial set when the pat will bear, without appreciable indentation, the Gillmore Mm I needle ^ in. 
