Civil Engineers' Pocket Book: A Reference-book for Engineers, Contractors, and Students, Containing Rules, Data, Methods, Formulas and TablesD. Van Nostrand Company, 1913 - 1611 σελίδες |
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Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
1-cosine acid angle anthracene atoms axis base calcite carbon cement cent center of gravity chord circle circular circumference coefficient common Common Logarithms compound contains cosec Cosine Cotang Tang creosote creosote oil CUBE ROOTS cubic cylinder decimal point diam diameter distance equal equation Ex.-Log cosec EXSECANTS feet feldspar formula fraction gallons Gold grains grav hence hornblende inches iron iron oxide joints length lime limestone loads Logarithms of Numbers manganese metal Meters mica MINERALS mixed moment of inertia multiply Naperian nitrate nitroglycerin Orthoclase outer forces oxide paint Pile pine plane polygon pounds powder proportion quantity Quartz R₁ radius rock sand schist SECANTS segment sides siliceous Silver Sine sodium nitrate Solution sphere SQUARE ROOTS steel stone sulphur surface Table TANGENTS timber triangle truss velocity Versed sine vertical weight wood
Δημοφιλή αποσπάσματα
Σελίδα 404 - Section 37, and quickly formed into a ball with the hands, completing the operation by tossing it six times from one hand to the other, maintained about 6 in.
Σελίδα 407 - 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. 23. These pats, to satisfactorily pass the requirements, shall remain firm and hard, and show no signs of distortion, checking, cracking, or disintegrating.
Σελίδα 408 - No. 100, and 30 per cent on the No. 200 sieve. TIME OF SETTING. It shall develop initial...
Σελίδα 403 - ... long; in the middle of this neck is a bulb (C), above and below which are two marks, F and E; the volume between these marks is 20 cu. cm. (1.22 cu.
Σελίδα 410 - The cement shall be considered to have acquired its initial set when the pat will bear, without appreciable indentation, the Gillmore Mm I needle ^ in.
Σελίδα 410 - Time of setting. — The cement shall not acquire its initial set in less than forty-five minutes and must have acquired its final set in ten hours. The pats made to test the soundness may be used in determining the time of setting. The cement is considered...
Σελίδα 407 - Care should be observed in centering the briquettes in the testing machine, as cross-strains, produced by improper centering, tend to lower the breaking strength. The load should not be applied too suddenly, as it may produce vibration, the shock from which often breaks the briquette before the ultimate strength is reached.
Σελίδα 408 - This term is applied to the finely pulverized product resulting from the calcination to incipient fusion of an intimate mixture of properly proportioned argillaceous and calcareous materials, and to which no addition greater than 3 per cent has been made subsequent to calcination.
Σελίδα 823 - When the shearing stresses developed in any part of a construction exceed the safe working strength of concrete, as fixed in these Regulations, a sufficient amount of steel shall be introduced in such a position that the deficiency in the resistance to shear is overcome.
Σελίδα 408 - All tests shall be made in accordance with the methods proposed by the Committee on Uniform Tests of Cement...