 | American Society for Testing Materials - 1920 - 868 Seiten
...case of revision, the year of last revision. ISSUED, 1916. SPECIFICATIONS. 1. The average compressive strength in pounds per square inch of not less than three standard mortar test pieces (see strength Section 4) composed of one part cement and three parts standard sand, by... | |
 | United States. Bureau of Mines - 1919 - 1164 Seiten
...when the Oillmore needle i* used. Final set shall be attained within 10 hours. Tensile strength. — 7. The average tensile strength In pounds per square...Inch of not less than three standard mortar briquets (see sec. 51) composed of one part cement and three parts standard sand, by weight, shall be equal... | |
 | 1916 - 806 Seiten
...minutes when the Gillmore needle is used. Final set shall be attained within 10 hours. Tensile strength. 7. The average tensile strength in pounds per square inch of not less than three standard mortar briquettes (see Section 51) composed of one part cement and three parts standard sand, by weight, shall... | |
 | Frederick Winslow Taylor, Sanford Eleazer Thompson - 1916 - 936 Seiten
...minutes when the Gillmore needle is used. Final set shall be attained within 10 hours. Tensile Strength. 7. The average tensile strength in pounds per square inch of not less than three standard mortar briquettes (see Par. 51) composed of one part cement and three parts standard sand, by weight, shall... | |
 | 1917 - 572 Seiten
...needle is used or sixty minutes when the Gillmore needle is used. Final set shall be attained within ten hours. 7. The average tensile strength in pounds per...square inch of not less than three standard mortar- briquettes composed of one part cement and three parts standard sand, by weight, shall be equal to... | |
 | American Railway Engineering Association - 1917 - 1772 Seiten
...minutes when the Gillmore needle is used. Final set shall be attained within 10 hours. Tensile Strength. 7. The average tensile strength in pounds per square inch of not less than three standard mortar briquettes (see Section 51), composed of one part cement and three parts standard sand, by weight,... | |
 | Clark R. Mandigo - 1917 - 136 Seiten
...used, or 60 minutes when the Gillmore needle is used. Final set shall be attained within 10 hours. The average tensile strength in pounds per square inch of not less than three standard mortar briquettes composed of one part cement and three parts standard sand, by weight, shall be equal to... | |
 | University of Missouri. School of Mines and Metallurgy - 1917 - 76 Seiten
...Materials Vol. 16, page 590.) It is 3 2 4 1 4 1 2 4 1 3 2 3 2 4 1 2 5 5 5 5 proposed that the average strength in pounds per square inch of not less than three standard test pieces composed of one part of cement and three parts of sand, by weight, shall be equal to or... | |
 | 1918 - 992 Seiten
...develop initial set in less than 45 minutes when the Vicat needle is used or 60 minutes when the Gillmore needle is used. Final set shall be attained within...square inch, of not less than three standard mortar briquettes (see Section composed of one part cement and three parts standard sand, weight, shall be... | |
 | John Milton Goodell - 1918 - 240 Seiten
...needle is used or sixty minutes when the Gillmore needle is used. Final set shall be attained within ten hours. 7. The average tensile strength in pounds per...square inch of not less than three standard mortar briquettes composed of one part cement and three parts standard sand, by weight, shall be equal to... | |
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The average tensile strength in pounds per square inch of not less than three standard mortar briquettes... 
