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 76
Сторінка 60
... prevents the use of a spade , a 1 - inch - by - 4 - inch board , sharpened to chisel edge on the end , will do as well . Only sharpen on one side and place the flat side against the form as shown in illustration . In the case of a dry ...
... prevents the use of a spade , a 1 - inch - by - 4 - inch board , sharpened to chisel edge on the end , will do as well . Only sharpen on one side and place the flat side against the form as shown in illustration . In the case of a dry ...
Сторінка 67
... prevents a watertight bond between the post and the body of the wall . To avoid this difficulty a number of arrangements are in use whereby two short bolts are connected to wire loops in the body of the wall . The wire loops remain in ...
... prevents a watertight bond between the post and the body of the wall . To avoid this difficulty a number of arrangements are in use whereby two short bolts are connected to wire loops in the body of the wall . The wire loops remain in ...
Сторінка 74
... prevent the concrete from adhering to the wood with which it comes TABLE VI . SHOWING THE PRESSURE ON FORMS PRODUCED BY CONCRETE AT VARIOUS DEPTHS . Depth in Feet . I 2 6 8 12 16 20 24 Pressure on Vertical strip , I foot wide in pounds ...
... prevent the concrete from adhering to the wood with which it comes TABLE VI . SHOWING THE PRESSURE ON FORMS PRODUCED BY CONCRETE AT VARIOUS DEPTHS . Depth in Feet . I 2 6 8 12 16 20 24 Pressure on Vertical strip , I foot wide in pounds ...
Сторінка 76
... prevent appreciable weight reaching columns . Conduits : two or three days , provided there is not a heavy fill upon them . Arches : of small size , one week ; for large arches with heavy dead load , one month . All of these times are ...
... prevent appreciable weight reaching columns . Conduits : two or three days , provided there is not a heavy fill upon them . Arches : of small size , one week ; for large arches with heavy dead load , one month . All of these times are ...
Сторінка 84
... prevents the exposure of the aggregate and any defects can be remedied by trowelling and grouting after the forms have been removed . 2. Roughening the surface by scrubbing , etching with acid , tooling with bushhammers or pneumatic ...
... prevents the exposure of the aggregate and any defects can be remedied by trowelling and grouting after the forms have been removed . 2. Roughening the surface by scrubbing , etching with acid , tooling with bushhammers or pneumatic ...
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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.