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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Сторінка 34
... square inch being an average safe working value , which is used in computations for various purposes . While it possesses a good deal of resistance to tensile stresses , it is not economical to employ concrete when such stresses are to ...
... square inch being an average safe working value , which is used in computations for various purposes . While it possesses a good deal of resistance to tensile stresses , it is not economical to employ concrete when such stresses are to ...
Сторінка 49
... square point . Wheelbarrows . - At least two necessary for quick work ; sheet- iron body preferred . Rake . Water - barrel . Water - buckets . - 2 - gallon size . Tamper . - 4 " x 4 " x 2'6 " , with handles nailed to it . Garden spade ...
... square point . Wheelbarrows . - At least two necessary for quick work ; sheet- iron body preferred . Rake . Water - barrel . Water - buckets . - 2 - gallon size . Tamper . - 4 " x 4 " x 2'6 " , with handles nailed to it . Garden spade ...
Сторінка 51
... 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 water to the dry spots . as the mixing goes on until all ...
... 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 water to the dry spots . as the mixing goes on until all ...
Сторінка 74
... square foot in pounds ... 80 160 320 480 640 960 640 1440 2560 5760 10240 16000 23040 1280 1600 1920 in contact . Crude oil is generally employed for the purpose , but any grease that will spread evenly and fill the pores of the wood ...
... square foot in pounds ... 80 160 320 480 640 960 640 1440 2560 5760 10240 16000 23040 1280 1600 1920 in contact . Crude oil is generally employed for the purpose , but any grease that will spread evenly and fill the pores of the wood ...
Сторінка 75
... square inch . Formula ( 1 ) may be solved for I , from which the size of joist required may be readily estimated from formula ( 2 ) . Time to Move Forms after Placing . * - The proper time for removing forms depends upon the character ...
... square inch . Formula ( 1 ) may be solved for I , from which the size of joist required may be readily estimated from formula ( 2 ) . Time to Move Forms after Placing . * - The proper time for removing forms depends upon the character ...
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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.