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 1-5 із 52
Сторінка 22
... centre of exactly 1 square inch . These briquettes are allowed to set either 1 , 7 , or 28 days and sometimes for even longer periods running into many years . They are then broken in testing machines . The briquettes are made both of ...
... centre of exactly 1 square inch . These briquettes are allowed to set either 1 , 7 , or 28 days and sometimes for even longer periods running into many years . They are then broken in testing machines . The briquettes are made both of ...
Сторінка 24
... centre , tapering to a thin edge , shall be kept in moist air for a period of twenty - four hours . ( a ) A pat is then kept in air at normal temperature . ( b ) Another is kept in water maintained as near 70 ° F. as practicable . These ...
... centre , tapering to a thin edge , shall be kept in moist air for a period of twenty - four hours . ( a ) A pat is then kept in air at normal temperature . ( b ) Another is kept in water maintained as near 70 ° F. as practicable . These ...
Сторінка 25
... centre , and tapering to a thin edge , shall be kept in moist air for a period of twenty - four hours . ( a ) A pat is then kept in air at normal temperature and observed at intervals for at least 28 days . ( b ) Another is kept in ...
... centre , and tapering to a thin edge , shall be kept in moist air for a period of twenty - four hours . ( a ) A pat is then kept in air at normal temperature and observed at intervals for at least 28 days . ( b ) Another is kept in ...
Сторінка 52
... centre of the board . When more than four men are available , the rest may place the concrete , make new runs , load wheelbarrows , etc. , taking the con- crete away from the board as fast as it is mixed . In this case another small ...
... centre of the board . When more than four men are available , the rest may place the concrete , make new runs , load wheelbarrows , etc. , taking the con- crete away from the board as fast as it is mixed . In this case another small ...
Сторінка 56
... of the ingredients are fed into the mixer at all times . CYLINDER " A " -MATERIAL " A " CYLINDER " B " -MATERIAL " B " CENTRE SPINDLE 2. That the quantity of water is uniform and of [ 56 ] Handbook for Cement and Concrete Users.
... of the ingredients are fed into the mixer at all times . CYLINDER " A " -MATERIAL " A " CYLINDER " B " -MATERIAL " B " CENTRE SPINDLE 2. That the quantity of water is uniform and of [ 56 ] Handbook for Cement and Concrete Users.
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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
Популярні уривки
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.