 | Mineral industries - 1905 - 708 pages
...diameter, % in. thick at center, tapering to a thin edge, shall be kept in moist air for a period of 24 hours; (a) a pat is then kept in air at normal temperature; (6) another is kept in water maintained as near 70° F. as practicable. These pats are observed at... | |
 | Hiram Bertrand Andrews - Reinforced concrete - 1908 - 68 pages
...neat cement about three inches in diameter, one half inch thick at the centre, and tapering to a thin edge, shall be kept in moist air for a period of twenty-four...temperature and observed at intervals for at least twenty-eight days. (6) Another pat is kept in water maintained as near 70° F. as practicable, and... | |
 | Stephen Elmer Slocum, Edward Lee Hancock - Strength of materials - 1906 - 348 pages
...volume. Pats of neat cement about 3 in. in diameter, $ in. thick at the center, and tapering to a thin edge, shall be kept in moist air for a period of twenty-four...temperature and observed at intervals for at least twenty-eight days. (6) Another pat is kept in water maintained as near 70° F. as practicable. and... | |
 | Stephen Elmer Slocum, Edward Lee Hancock - Strength of materials - 1906 - 348 pages
...volume. Pats of neat cement about 3 in. in diameter, J in. thick at the center, taperiug to a thin edge, shall be kept in moist air for a period of twenty-four...(a) A pat is then kept in air at normal temperature. (6) Another is kept in water maintained as near 70° F. as practicable. These pats are observed at... | |
 | Frederick Putnam Spalding - Cement - 1906 - 346 pages
...neat cement about three inches in diameter, one half inch thick at the centre, and tapering to a thin edge, shall be kept in moist air for a period of twentyfour hours. A pat is then kept in air at normal temperature and observed at intervals for at least 28 davs. Another... | |
 | Rolla C. Carpenter - Building materials - 1906 - 908 pages
...inch thick at centre, tapering to a thin edge, shall be kept in moist air for a period of twenty-fours hours. (a) A pat is then kept in air at normal temperature. (6) Another is kept in water maintained as near 70° F. as practicable. 17. These pats are observed... | |
 | Louis Carlton Sabin - Cement - 1907 - 598 pages
...neat cement about three inches in diameter, one-half inch thick at the centre, and tapering to a thin edge, shall be kept in moist air for a period of twenty-four...temperature and observed at intervals for at least 28 days. (6) Another pat is kept in water maintained as near 70° F. as practicable, and observed at intervals... | |
 | Louis Carlton Sabin - Cement - 1907 - 596 pages
...Pats of neat cement about three inches in diameter, one-half inch thick at centre, tapering to a thin edge, shall be kept in moist air for a period of twenty-four...(a) A pat is then kept in air at normal temperature. (6) Another is kept in water maintained as near 70° F. as practicable. 17. These pats are observed... | |
 | American Society of Civil Engineers - Civil engineering - 1907 - 956 pages
...in. thick at the center and tapering to a thin edge, shall be kept in moist air for a period of 24 hours. * (a) — A pat is then kept in air at normal...temperature and observed at intervals for at least 28 days. (6)- — Another pat is kept in water maintained as near 70° fahr. as practicable, and observed at... | |
 | Louis F. Brayton - Reinforced cement - 1907 - 146 pages
...neat cement about three inches in diameter, one-half inch thick at the centre and tapering to a thin edge, shall be kept in moist air for a period of twenty-four hours. (a) A patis then kept in air at normal temperature and observed at intervals for at least 28 days. (6) Another... | |
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Pats of neat cement about three inches in diameter, one-half inch thick at the center, and tapering to a thin edge, shall be kept in moist air for a period of twenty-four hours. (a) A pat is then kept in air at normal temperature and observed at intervals... 
