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 52
... 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 each time it is ...
... 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 each time it is ...
Сторінка 59
... feet necessary to remove air - bubbles and fill voids . In concrete of a medium con- sistency , a man would sink ankle - deep if he were to step onto the top of the pile . 3. Dry Mixture . - Concrete like damp earth : used for founda ...
... feet necessary to remove air - bubbles and fill voids . In concrete of a medium con- sistency , a man would sink ankle - deep if he were to step onto the top of the pile . 3. Dry Mixture . - Concrete like damp earth : used for founda ...
Сторінка 65
... feet apart . The studs are also braced with 2 x 4 inch diagonals . The diagonal braces are held in position by posts driven into the ground . lin Boards 2x4 in . Cleats FIG . 17. - Simple Forms for Cellar Walls . This type is faulty in ...
... feet apart . The studs are also braced with 2 x 4 inch diagonals . The diagonal braces are held in position by posts driven into the ground . lin Boards 2x4 in . Cleats FIG . 17. - Simple Forms for Cellar Walls . This type is faulty in ...
Сторінка 69
... feet long by 4 feet in height . For any wall at least two lines of panels are em- ployed , and for high walls , three sets should be available to avoid delays to the work . The panels are braced by bolts and spacers . Bolts are placed ...
... feet long by 4 feet in height . For any wall at least two lines of panels are em- ployed , and for high walls , three sets should be available to avoid delays to the work . The panels are braced by bolts and spacers . Bolts are placed ...
Сторінка 73
... feet , for 1-1 / 2 inch plank is 4 feet , and for 2 - inch plank is 5 feet . Studding generally varies from 2 x 4 inches to 4 x 6 inches , according to the character of the work and the distance between the horizontal braces [ 73 ] ...
... feet , for 1-1 / 2 inch plank is 4 feet , and for 2 - inch plank is 5 feet . Studding generally varies from 2 x 4 inches to 4 x 6 inches , according to the character of the work and the distance between the horizontal braces [ 73 ] ...
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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.