Organization, Equipment and Operation of the Structural-materials Testing Laboratories at St. Louis, Mo, 329-330. sayılarU.S. Government Printing Office, 1908 - 84 sayfa |
Kitabın içinden
10 sonuçtan 1-5 arası sonuçlar
Sayfa 20
... 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.
... 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
Richard Lewis Humphrey. is computed . The briquet molds are of the 5- and 3 - gang type and are made of brass ( Pl . II , A ) . Compression test pieces are 2 - inch cubes , the molds being of the 3 - gang type . The mortar cubes are ...
Richard Lewis Humphrey. is computed . The briquet molds are of the 5- and 3 - gang type and are made of brass ( Pl . II , A ) . Compression test pieces are 2 - inch cubes , the molds being of the 3 - gang type . The mortar cubes are ...
Sayfa 22
... computed . The difference between the volume of the sand and water read on the neck of the flask and the volume of the water in cubic centimeters in the flask corrected for absorption gives the volume of the sand in cubic centimeters ...
... computed . The difference between the volume of the sand and water read on the neck of the flask and the volume of the water in cubic centimeters in the flask corrected for absorption gives the volume of the sand in cubic centimeters ...
Sayfa 29
... computed by dividing their weights in grams by the respective specific gravities . The sum of these absolute volumes is then divided by the volume of mortar in the cylinder , and thus the density obtained . The values are recorded on ...
... computed by dividing their weights in grams by the respective specific gravities . The sum of these absolute volumes is then divided by the volume of mortar in the cylinder , and thus the density obtained . The values are recorded on ...
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
Popüler pasajlar
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...