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 99
Сторінка 51
... load is dumped and dragged back toward the mixer with the square point of the shovel . This mixes the gravel with the sand and cement , the wet gravel picking up the sand and cement as it rolls over when dragged back by the shovel . Add ...
... load is dumped and dragged back toward the mixer with the square point of the shovel . This mixes the gravel with the sand and cement , the wet gravel picking up the sand and cement as it rolls over when dragged back by the shovel . Add ...
Сторінка 52
... load wheelbarrows , etc. , taking the con- crete away from the board as fast as it is mixed . In this case another small concrete board should be placed next to the big " board , " so that in the last turning the batch can be shovelled ...
... load wheelbarrows , etc. , taking the con- crete away from the board as fast as it is mixed . In this case another small concrete board should be placed next to the big " board , " so that in the last turning the batch can be shovelled ...
Сторінка 66
... load , " hence the brace should be driven deep in order that it may obtain sufficient anchorage . Wired and Bolted Forms . - Forms , when used on both sides of a narrow wall , should be tied together by wires or bolts . The wire BO BE I ...
... load , " hence the brace should be driven deep in order that it may obtain sufficient anchorage . Wired and Bolted Forms . - Forms , when used on both sides of a narrow wall , should be tied together by wires or bolts . The wire BO BE I ...
Сторінка 71
... loads to the parts under the girders which support the entire load . The middle of the floor slab form is further supported by a 2 x 4 inch piece resting on the cross bracing . In removing beam and girder forms , the posts should be ...
... loads to the parts under the girders which support the entire load . The middle of the floor slab form is further supported by a 2 x 4 inch piece resting on the cross bracing . In removing beam and girder forms , the posts should be ...
Сторінка 74
... load . Wet concrete sets more slowly than dry mixtures , and concrete is slower setting in cold weather than it is when the weather is warm . For walls , the forms should be left up from 1 to 5 days ; for slabs , from 6 days to 2 weeks ...
... load . Wet concrete sets more slowly than dry mixtures , and concrete is slower setting in cold weather than it is when the weather is warm . For walls , the forms should be left up from 1 to 5 days ; for slabs , from 6 days to 2 weeks ...
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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.