Organization, Equipment and Operation of the Structural-materials Testing Laboratories at St. Louis, Mo, 329-330. sayılarU.S. Government Printing Office, 1908 - 84 sayfa |
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21 sonuçtan 1-5 arası sonuçlar
Sayfa v
... measuring slip of rods ; B , Steel carriage for handling beams 50 ANN 50 52 52 54 XVII . Method of recording character of reinforced - concrete beam failures .. XVIII . A , Henning steel extensometer for measuring elongation of steel ...
... measuring slip of rods ; B , Steel carriage for handling beams 50 ANN 50 52 52 54 XVII . Method of recording character of reinforced - concrete beam failures .. XVIII . A , Henning steel extensometer for measuring elongation of steel ...
Sayfa 20
... measured at the time of testing and the actual unit stress is computed . The briquet molds are of the 5- 22 STRUCTURAL - MATERIALS TESTING LABORATORIES . Physical tests of cement Strength tests of neat cement and Ottawa sand mortar 220 24.
... measured at the time of testing and the actual unit stress is computed . The briquet molds are of the 5- 22 STRUCTURAL - MATERIALS TESTING LABORATORIES . Physical tests of cement Strength tests of neat cement and Ottawa sand mortar 220 24.
Sayfa 20
... measured and recorded during the tests are ( 1 ) the weight of the vessel full of dry material , ( 2 ) the weight of the vessel full of material and water , ( 3 ) the weight of a portion of the surface- dried sand after the test , and ...
... measured and recorded during the tests are ( 1 ) the weight of the vessel full of dry material , ( 2 ) the weight of the vessel full of material and water , ( 3 ) the weight of a portion of the surface- dried sand after the test , and ...
Sayfa 21
... measured . The amount of water absorbed is measured by weighing the material after surface drying with a towel and again after drying it to constant weight over a hot plate . The original dry weight is used in determin- ing the loss of ...
... measured . The amount of water absorbed is measured by weighing the material after surface drying with a towel and again after drying it to constant weight over a hot plate . The original dry weight is used in determin- ing the loss of ...
Sayfa 22
... measured and recorded , the weights being in grams and the volumes in cubic centimeters : ( 1 ) Weight of flask and sand ; ( 2 ) weight of flask , sand , and water ; ( 3 ) weight of surface - dried sand ; ( 4 ) weight of dry sand ; ( 5 ) ...
... measured and recorded , the weights being in grams and the volumes in cubic centimeters : ( 1 ) Weight of flask and sand ; ( 2 ) weight of flask , sand , and water ; ( 3 ) weight of surface - dried sand ; ( 4 ) weight of dry sand ; ( 5 ) ...
Sık kullanılan terimler ve kelime öbekleri
absorption aggregate beam section bond test cent chairman Chicago Company Compressive strength Computations concrete and reinforced constituent-materials cubes cubic foot cylinder deformations deformeters determined dry material elastic limit equipment flask Form gage length GEOLOGICAL SURVEY grams Gravel inches in diameter inches long investigations joint committee limestone load Louis Louisiana Purchase Exposition manufactured by Tinius Meramec River methods micrometer mixer mixing modulus of elasticity molds mortar Ohio Olsen & Co percentage of voids permeability Philadelphia pounds per square proportions Reclamation Service reinforced concrete Richard L rods sample sand screen shear Shearing strength shown in Pl sieve silt span specific gravity specimens spherical bearing square inch steel stone STORAGE structural materials STRUCTURAL-MATERIALS TESTING LABORATORIES surface tamped tensile test pieces testing machine Tinius Olsen tion Transverse strength transverse tests typical Portland cement UNITED STATES GEOLOGICAL volume waterproofing weight of water Weight per cubic
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Sayfa 20 - All tests shall be made in accordance with the methods proposed by the Committee on Uniform Tests of Cement...
Sayfa 77 - Method. — As a method to be followed for the analysis of cement, that proposed by the committee on uniformity in the analysis of materials for the...
Sayfa 15 - SAND. 7 days (1 day in moist air, 6 days in water) 200 Ibs.
Sayfa 15 - F. as practicable, and observed at intervals for at least 28 days. (c) A third pat is exposed in any convenient way in an atmosphere of steam, above boiling water, in a loosely closed vessel for five hours. These...
Sayfa 15 - 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.
Sayfa 2 - ... the report of the joint committee on concrete and reinforced concrete of the American Society of Civil Engineers, American Society for Testing Materials, American...
Sayfa 3 - Concrete and Reinforced Concrete was formed by the union of Special Committees appointed in 1903 and 1904 by the American Society of Civil Engineers, the American Society for Testing Materials, the American Railway Engineering and Maintenance of Way Association (now the American Railway Engineering Association), and the Association of American Portland Cement Manufacturers (now the Portland Cement Association).
Sayfa 15 - Portland cement is to be prepared by thoroughly mixing a number of brands, each of which must meet the following requirements: Specific gravity, not less than 3.10. Fineness, residue not more than 8 per cent on No. 100 nor 25 per cent on No.
Sayfa 1 - The original advisory board consisted of the following representatives of the various national societies and Government bureaus. The American Institute of Mining Engineers: John Hays Hammond, past president, New York; Robert W. Hunt (Robert W . Hunt & Co., testing engineers, Chicago, Pittsburg, and New York), Chicago, 111.; BF Bush, manager and vice president. Western Coal and Mining Company, St. Louis, Mo. The American Institute of Electrical Engineers: Francis B. Crocker, professor of electrical...
Sayfa v - For the continuation of the analyzing and testing of the coals, lignites, and other mineral fuel substances belonging to the United States, in order to determine their fuel value and so forth, under the supervision of the Director of the United States Geological Survey...