Text-book of the Materials of EngineeringMcGraw-Hill, 1920 - 315 halaman |
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Textbook of the Materials of Engineering Herbert Fisher Moore,Harrison Frederick Gonnerman Pratinjau tidak tersedia - 2016 |
Istilah dan frasa umum
alloys aluminum annealing axis beams bending Bessemer process blast furnace brass brick brittle bronze carbon cast iron cent Chaps chemical coarse aggregate cold-rolled compressive strength cooling copper corrosion cracks cross-section crystalline cylinders determined ductility elastic limit electric Engineering extensometer fiber fineness modulus flexure formula given gives grades grain gypsum hard heat ingot ingredients Iron and Steel lime limestone load manganese masonry material maximum method of proportioning mixed mixture molds molten mortar number of repetitions open-hearth furnace open-hearth process open-hearth steel oxide particles phosphorus pig iron Portland cement produced properties proportional limit repeated stress repetitions of stress resistance rolled rubber sand shaft shearing stress shown in Fig sieve sieve analysis slag soft specimen steel castings stone Strength of Materials stress-strain diagram sulphur surface temperature tensile strength tension testing machine timber ultimate unit strain values weight welding wood wrought iron yield point zinc
Bagian yang populer
Halaman 180 - ... the ratio of the ovendry weight of a sample to the weight of a volume of water equal to the volume of the sample at some specific moisture content, as green, air-dry, or ovendry.
Halaman 208 - Fill a 12-oz. graduated prescription bottle to the 4#-oz. mark with the sand to be tested. Add a 3 per cent solution of sodium hydroxide until the volume of the sand and solution, after shaking, amounts to 7 oz. Shake thoroughly and let stand for 24 hours. Observe the color of the clear liquid above the sand.
Halaman 208 - If the solution resulting from this treatment is colorless, or has a light yellowish color, the sand may be considered satisfactory in so far as organic impurities are concerned. On the other hand, if a...
Halaman 219 - With given concrete materials and conditions of test the quantity of mixing water used determines the strength of the concrete, so long as the mix is of a workable plasticity.
Halaman 226 - This table is based on the requirements for sand-and-pebble or gravel aggregate composed of approximately spherical particles, in ordinary uses of concrete in reinforced concrete structures. For other materials and in other classes of work the maximum permissible values of fineness modulus for an aggregate of a given size is subject to the following corrections: (1) If crushed stone or slag is used as coarse aggregate, reduce values in table by 0.25. For crushed material consisting of unusually flat...
Halaman 279 - Om. nq — 0.5 mn, mq = 1.5 mn, and the slope of Oq represents a rate of deformation 50 per cent greater than the initial rate. O'q' is drawn parallel to Oq and tangent to the stress-strain diagram.
Halaman 226 - For the top course in concrete roads, or other work requiring a smooth finish, reduce the values by 0.25. If finishing is done by mechanical means, this reduction need not be made. (5) In work of massive proportions, such that the smallest dimension is larger than 10 times the maximum size of the coarse aggregate, additions may be made to the valuea in the table as follows: for J-in.
Halaman 42 - ... load. Under a single application of load the material of a structure either withstands the load or it fails; under load repeated many thousands of times the material may withstand the load for a while, and then fail by the gradual spread of cracks or other local injuries to the material. Under repeated load, local strains which would be of no importance if but one loading were to be applied may form a nucleus for damage which gradually spreads until the whole member fails. This gradual breakdown...
Halaman 225 - Tyler standard sieves of the following sizes: 100, 48, 28, 14, 8, 4, f|. % and \% in. Express sieve analysis in terms of percentages of material by weight (or separate volumes) coarser than each of the standard sieves. 3. Compute fineness modulus of each aggregate by adding the percentages found in (2), and dividing by 100. 4. Determine the "maximum size...
Halaman 80 - Wrought iron is almost the same as the very low-carbon steels except that it is never produced by melting and casting in a mold but is always forged to the desired size and form. It usually contains less than 0.12 per cent of carbon. Its chief distinction from the...