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 20
... square inch . The finer the cement is ground the greater will be its hydrau- licity , and the greater the proportions of sand that can be used with it . Second . - Setting . - Cement which sets much [ 20 ] Handbook for Cement and ...
... square inch . The finer the cement is ground the greater will be its hydrau- licity , and the greater the proportions of sand that can be used with it . Second . - Setting . - Cement which sets much [ 20 ] Handbook for Cement and ...
Сторінка 22
... 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 pure cement and of ...
... 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 pure cement and of ...
Сторінка 24
... square in cross - section shall be within the following limits , and shall show no retrogression in strength within the periods specified : NEAT CEMENT . Age . 24 hours in moist air .. 7 days ( 1 day in moist air , 6 days in water ) ...
... square in cross - section shall be within the following limits , and shall show no retrogression in strength within the periods specified : NEAT CEMENT . Age . 24 hours in moist air .. 7 days ( 1 day in moist air , 6 days in water ) ...
Сторінка 25
... square in section shall be within the following limits , and shall show no retrogression in strength . within the periods specified : Age . 24 hours in moist air .... NEAT CEMENT . Strength , Lbs . 7 days ( 1 day in moist air , 6 days ...
... square in section shall be within the following limits , and shall show no retrogression in strength . within the periods specified : Age . 24 hours in moist air .... NEAT CEMENT . Strength , Lbs . 7 days ( 1 day in moist air , 6 days ...
Сторінка 33
... the concrete . The strength of plain concrete is principally in resisting com- pression or crushing forces , and in this direction it can withstand very heavy loads , 500 lbs . per square inch 3 [ 33 ] Concrete and Its Properties.
... the concrete . The strength of plain concrete is principally in resisting com- pression or crushing forces , and in this direction it can withstand very heavy loads , 500 lbs . per square inch 3 [ 33 ] Concrete and Its Properties.
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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.