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 6-10 із 48
Сторінка 41
... compression strength usually show broken stone concrete to be superior , but long - time tests of from six months to a year show gravel concrete on an average to be equal if not stronger . In construction work where tensile or other ...
... compression strength usually show broken stone concrete to be superior , but long - time tests of from six months to a year show gravel concrete on an average to be equal if not stronger . In construction work where tensile or other ...
Сторінка 74
... upon slab ; 50 lbs . per sq . ft . in figuring beam and girder forms ; and struts . 3. For allowable compression in struts use 600 to 1,200 lbs . per sq . in . , varying with the ratio of [ 74 ] Handbook for Cement and Concrete Users.
... upon slab ; 50 lbs . per sq . ft . in figuring beam and girder forms ; and struts . 3. For allowable compression in struts use 600 to 1,200 lbs . per sq . in . , varying with the ratio of [ 74 ] Handbook for Cement and Concrete Users.
Сторінка 76
... compression in the concrete is large even before the live load comes upon it . Cost of Forms . - The cost of form work per cubic yard of con- crete depends largely on the thickness of the walls . With very thin walls the cost for forms ...
... compression in the concrete is large even before the live load comes upon it . Cost of Forms . - The cost of form work per cubic yard of con- crete depends largely on the thickness of the walls . With very thin walls the cost for forms ...
Сторінка 102
... compressing the end of the hose . Care must be taken to apply the plaster at once , and before the wall has had an opportunity to dry . If the plaster is applied to a dry , porous surface , the latter will take up so much water that the ...
... compressing the end of the hose . Care must be taken to apply the plaster at once , and before the wall has had an opportunity to dry . If the plaster is applied to a dry , porous surface , the latter will take up so much water that the ...
Сторінка 126
... compression of thick layers is attempted , the materials arch and are not compacted at any considerable depth from the surface . Moulding blocks by pressure is therefore practical only in the two - piece system , in which the load is ...
... compression of thick layers is attempted , the materials arch and are not compacted at any considerable depth from the surface . Moulding blocks by pressure is therefore practical only in the two - piece system , in which the load is ...
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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.