Popular Hand Book for Cement and Concrete Users: A Comprehensive and Popular Treatise on the Principles Involved and Methods Employed in the Design and Construction of Modern Concrete Work ...Norman W. Henley Publishing Company, 1911 - 430 стор. |
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Результати 6-10 із 32
Сторінка 211
... resistance of beams . ( e ) The initial stress in the reinforcement due to contraction or expansion in the concrete is neglected . ( The depth of a beam is the distance from the compressive face to the centroid of the tension ...
... resistance of beams . ( e ) The initial stress in the reinforcement due to contraction or expansion in the concrete is neglected . ( The depth of a beam is the distance from the compressive face to the centroid of the tension ...
Сторінка 217
... resistance of 48,000 pounds per square inch and an elongation of 21 per cent in a length of 8 inches . It is manufactured from flat plates of thickness varying from 1/4 to about 1/8 of an inch , and when expanded , the usual meshes are ...
... resistance of 48,000 pounds per square inch and an elongation of 21 per cent in a length of 8 inches . It is manufactured from flat plates of thickness varying from 1/4 to about 1/8 of an inch , and when expanded , the usual meshes are ...
Сторінка 218
... resistance along the embedded steel will decrease in time under frequently repeated loads , American en- gineers have deemed it wise to use the reinforcing steel in such shape that sliding in the concrete will be impossible without ...
... resistance along the embedded steel will decrease in time under frequently repeated loads , American en- gineers have deemed it wise to use the reinforcing steel in such shape that sliding in the concrete will be impossible without ...
Сторінка 223
... resistance is one of the chief inducements that has led to the extensive use of concrete in factories . The materials to be employed are first - class Portland cement , quartz sand , and broken trap rock . Limestone aggregates are more ...
... resistance is one of the chief inducements that has led to the extensive use of concrete in factories . The materials to be employed are first - class Portland cement , quartz sand , and broken trap rock . Limestone aggregates are more ...
Сторінка 224
... resistance , but the concrete made therefrom is not sufficiently strong for reinforced concrete work excepting for partition walls and short spans . A reinforced concrete factory is necessarily a very stiff structure , every part being ...
... resistance , but the concrete made therefrom is not sufficiently strong for reinforced concrete work excepting for partition walls and short spans . A reinforced concrete factory is necessarily a very stiff structure , every part being ...
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50 cents abutment acid aggregate applied arch asphalt barrel bars bending bottom brick bridge broken stone building carrying cent centre chapter coat color columns compression compressive stress concrete blocks consists construction cost cracks crete cubic cubic foot depth diameter employed engineer face feet filled finish floor forms formula foundation girders gravel grout gypsum hardening horizontal hydraulic lime inches lath lime load machine manufacture masonry material metal method mixer mixing mixture mortar mould O'CONOR SLOANE obtained ornamental pile pipe placed plaster plaster of Paris Portland cement posts practical pressure Price proportions reinforced concrete reinforced-concrete removed resistance retaining walls rods Rule sand sewer shear slab slaked lime space span steel stirrups strength stress structure stucco surface tamped tanks tensile stresses tension tests tile trowel tunnel vertical waterproofing weight wire wooden
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Сторінка 25 - 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.