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 12
... placed into storage bins and the proper proportions decided upon by chemical analysis of samples taken from various portions . An extremely accurate mixture is obtained by using an automatic weighing machine of the tandem type . The ...
... placed into storage bins and the proper proportions decided upon by chemical analysis of samples taken from various portions . An extremely accurate mixture is obtained by using an automatic weighing machine of the tandem type . The ...
Сторінка 19
... placed . Soundness refers to the property of not expanding , contracting , or cracking during the time of setting . These effects may be due to free lime , free magnesia , or to unknown causes . FIG . 1. - Showing Normal Ce- ment Pat in ...
... placed . Soundness refers to the property of not expanding , contracting , or cracking during the time of setting . These effects may be due to free lime , free magnesia , or to unknown causes . FIG . 1. - Showing Normal Ce- ment Pat in ...
Сторінка 38
... placed quite near together , or it will break through . The sand is shoveled on to the upper end of the trough by one man , while another one can wash it with a hose . The flow of water will wash the sand down the incline , and as the ...
... placed quite near together , or it will break through . The sand is shoveled on to the upper end of the trough by one man , while another one can wash it with a hose . The flow of water will wash the sand down the incline , and as the ...
Сторінка 48
... placed as close as possible to the forms in which the concrete is to be deposited , but " local conditions " must govern this point . Pick a place giving plenty of room , near the storage piles of sand and stone ( or pebbles ) . Block ...
... placed as close as possible to the forms in which the concrete is to be deposited , but " local conditions " must govern this point . Pick a place giving plenty of room , near the storage piles of sand and stone ( or pebbles ) . Block ...
Сторінка 49
... placed and the " runs " made , the concrete plant is ready . First load your sand in wheelbarrows from the sand pile , wheel on to the " Board , " and fill the sand - measuring box , which is placed about two feet from one of the 10 ...
... placed and the " runs " made , the concrete plant is ready . First load your sand in wheelbarrows from the sand pile , wheel on to the " Board , " and fill the sand - measuring box , which is placed about two feet from one of the 10 ...
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abutment acid aggregate applied arch asphalt barrel bars bending bending moment bottom brick bridge broken stone building caissons carrying cent centre chapter coal tar coat color column compression compressive stress concrete blocks consists construction cost counterforts cracks crete cubic cubic foot depth diameter employed engineer face feet filled finish floor forms formula foundation girders gravel grout gypsum horizontal inches inches thick lath lime load machine manufacture masonry material metal method mixer mixing mixture mortar mould obtained ornamental pile pipe placed plaster plaster of Paris Portland cement practical pressure proportions reinforced concrete reinforced-concrete removed resistance retaining walls rods Rule sand sewer shear shearing stress slab 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.