Bulletin of the United States Geological SurveyThe Survey., 1908 |
Kitabın içinden
8 sonuçtan 1-5 arası sonuçlar
Sayfa iii
... passes 1 - inch screen . 27 Percentage of silt 28 Granulometric analysis .. 29 Tests of mortar .. 29 Description .. Strength tests . Density tests . Tests of concrete Description .. Strength tests .. Modulus of elasticity in compression ...
... passes 1 - inch screen . 27 Percentage of silt 28 Granulometric analysis .. 29 Tests of mortar .. 29 Description .. Strength tests . Density tests . Tests of concrete Description .. Strength tests .. Modulus of elasticity in compression ...
Sayfa 37
... PASSES THE ONE - FOURTH INCH SCREEN . Apparatus . With screened material a 3 - inch wrought - iron pipe , 12 inches long , shown in Pl . VI , A , is used . It is permanently capped at the bottom and has a removable screw cap at the top ...
... PASSES THE ONE - FOURTH INCH SCREEN . Apparatus . With screened material a 3 - inch wrought - iron pipe , 12 inches long , shown in Pl . VI , A , is used . It is permanently capped at the bottom and has a removable screw cap at the top ...
Sayfa 41
... passing through pulleys at the ceiling ( Pl . VII ) . A shallow wooden box ( a , Pl . VII , A ) fits beneath each of the two finest screens so that material passing these screens will be caught in the box with the loss of as little fine ...
... passing through pulleys at the ceiling ( Pl . VII ) . A shallow wooden box ( a , Pl . VII , A ) fits beneath each of the two finest screens so that material passing these screens will be caught in the box with the loss of as little fine ...
Sayfa 30
... passes from the funnel to the mixer through a 2 - inch hose . The concrete is molded into cylinders 8 inches in diameter and 16 inches long and into 6 - inch cubes . Both cylinders and cubes are tested for compressive strength , and on ...
... passes from the funnel to the mixer through a 2 - inch hose . The concrete is molded into cylinders 8 inches in diameter and 16 inches long and into 6 - inch cubes . Both cylinders and cubes are tested for compressive strength , and on ...
Sayfa 35
... Passing 4 - in . sieve .. .per cent . ( b ) Screened to ... .size .. -per cent . Yield Volume of sand Remarks.- . Moisture by weight in terms of dry material Amount and character of silt .. Volume of mortar ..per cent . Reg . No. of ...
... Passing 4 - in . sieve .. .per cent . ( b ) Screened to ... .size .. -per cent . Yield Volume of sand Remarks.- . Moisture by weight in terms of dry material Amount and character of silt .. Volume of mortar ..per cent . Reg . No. of ...
Diğer baskılar - Tümünü görüntüle
Sık kullanılan terimler ve kelime öbekleri
absorption aggregate batch report beam section bending bending moment bond test pieces bottom cent Chicago cinders compressive strength Computations concrete beams consistency cubic foot deformations deformeters determined dry material elastic limit equipment feet flask Form gage length grams Gravel inches in diameter inches long Interior view investigations layer limestone Louis Louisiana Purchase Exposition machine ready manufactured by Tinius Meramec River methods micrometer mixer mixing modulus of elasticity moist room molds mortar mortars and concretes Olsen & Co percentage of voids permeability Philadelphia placed plain beams pounds per square proportions Reclamation Service reinforced concrete rods sample screen shear shown in Pl sieve silt span specific gravity spherical bearing square inch steel stirrups stone STORAGE STRUCTURAL-MATERIALS TESTING LABORATORIES surface tamped tensile test pieces testing machine Tinius Olsen tion Total Transverse strength transverse tests U. S. GEOLOGICAL SURVEY UNITED STATES GEOLOGICAL 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 17 - Sand. 7 days (1 day in moist air, 6 days in water) 200 Ibs.
Sayfa 79 - 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 17 - 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 17 - 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 4 - ... 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 5 - 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 17 - 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 17 - These pats, to satisfactorily pass the requirements, shall remain firm and hard and show no signs of distortion, checking, cracking, or disintegrating.
Sayfa 3 - 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...