Engineers' Pocketbook of Reinforced Concrete |
Common terms and phrases
aggregates angle of repose Area of Steel barrel bars bending bending moment bottom building calculated cent center of gravity Chicago compression Concrete Construction concrete piles contractor cost counterforts crete crusher cubic culverts Curve dead load depth designed diameter distance elastic limit Elevator engineer factor of safety filling Flange floor slabs foot forms formula foundation gives grain gravel horizontal inches intersection iron joint line of pressure live load load in lbs located masonry material maximum ment mesh method mixed Mixer mixture molds Moment of Inertia mortar Neutral Axis No.7 gage pipe placed Portland cement proportion Radius of Gyration reactions reinforced concrete resultant retaining walls roof Safe load sand shear shown in Fig side span square steel area steel reinforcement stirrups strength stress structure surface TABLE tamped tanks tensile tension tests thickness tion verti'l reinforce vertical voids weight width wire fabric
Popular passages
Page 351 - 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.
Page 342 - 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.
Page 8 - For the present, the Committee recommends the natural sand from Ottawa, 111., screened to pass a sieve having 20 meshes per linear inch and retained on a sieve having 30 meshes per linear inch; the wires to have diameters of 0.0165 and 0.0112 in., respectively, ie, half the width of the opening in each case.
Page 350 - This term shall be applied to the finely pulverized product resulting from the calcination of an argillaceous limestone at a temperature only sufficient to drive off the carbonic acid gas.
Page 341 - The cement shall be stored in such a manner as to permit easy access for proper inspection and identification of each shipment, and in a suitable weather-tight building which will protect the cement from dampness.
Page 343 - It shall leave by weight a residue of not more than 8 per cent on the No. 100, and not more than 25 per cent on the No.
Page 343 - 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.
Page 342 - The minimum requirements for tensile strength for briquettes one inch square in cross section shall be within the following limits, and shall show no retrogression in strength within the periods specified:* Age.
Page 343 - It shall develop initial set in not less than thirty minutes, but must develop hard set in not less than one hour, nor more than ten hours.
Page 341 - A bag of cement shall contain 94 pounds of cement net. Each barrel of Portland cement shall contain 4 bags, and each barrel of natural cement shall contain 3 bags of the above net weight. 8. Cement failing to meet the seven-day requirements may be held awaiting the results of the twenty-eight day tests before rejection. 9. All tests shall be made in accordance with the methods proposed by the Committee on Uniform Tests of Cement...