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 45
Сторінка 42
... increased in accordance with the richness , variation in size of aggregate , and with the plasticity of the mixture . Mix rich and mix wet to obtain the best work . The question of proportioning is , of course , also dependent upon the ...
... increased in accordance with the richness , variation in size of aggregate , and with the plasticity of the mixture . Mix rich and mix wet to obtain the best work . The question of proportioning is , of course , also dependent upon the ...
Сторінка 43
... increasing the voids about 10 per cent . This swelling is due to a film of water between the grains , and this film cannot be entirely displaced by the cement . When the water evaporates after a wall of concrete has set , voids always ...
... increasing the voids about 10 per cent . This swelling is due to a film of water between the grains , and this film cannot be entirely displaced by the cement . When the water evaporates after a wall of concrete has set , voids always ...
Сторінка 52
... increased to 10 feet x 12 feet , as shown under " Tools . " In this case the mixing is in the middle of the board , each pair of men mixing exactly as if for a two - bag batch , except that the concrete is shovelled into one big mass ...
... increased to 10 feet x 12 feet , as shown under " Tools . " In this case the mixing is in the middle of the board , each pair of men mixing exactly as if for a two - bag batch , except that the concrete is shovelled into one big mass ...
Сторінка 73
... increases will not cause partial rupture of the concrete or sagging of the beam . Experiments have shown that forms designed on the assump- tion that the pressure produced by wet concrete is equivalent to that of a fluid weighing 80 ...
... increases will not cause partial rupture of the concrete or sagging of the beam . Experiments have shown that forms designed on the assump- tion that the pressure produced by wet concrete is equivalent to that of a fluid weighing 80 ...
Сторінка 87
... increased , or it can be widened or lengthened . By a few additional forms , the whole appearance of the veranda can be changed . A contracting company having the smallest unit possible to permit of cheap and rapid production , must ...
... increased , or it can be widened or lengthened . By a few additional forms , the whole appearance of the veranda can be changed . A contracting company having the smallest unit possible to permit of cheap and rapid production , must ...
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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.