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 14
... compressive strength of plaster is about 120 lbs . per sq . in . Plaster adheres to itself better than to stone or brick . The adhesion to iron is from 24 to 37 lbs . per sq . in . The quality of plaster may be tested by simply ...
... compressive strength of plaster is about 120 lbs . per sq . in . Plaster adheres to itself better than to stone or brick . The adhesion to iron is from 24 to 37 lbs . per sq . in . The quality of plaster may be tested by simply ...
Сторінка 138
... Compression Test . - The ultimate compressive strength at 28 days must average one thousand ( 1,000 ) pounds per square inch , and must not fall below seven hundred in any case . Absorption Test . — The percentage of absorption ( being ...
... Compression Test . - The ultimate compressive strength at 28 days must average one thousand ( 1,000 ) pounds per square inch , and must not fall below seven hundred in any case . Absorption Test . — The percentage of absorption ( being ...
Сторінка 169
... stress . When the loads are within the safe carrying capacity of the material , this condition of stress is shown by ... Compression ; ( 3 ) Shear ; ( 4 ) Bending . A body is subjected to tension or is under a [ 169 ]
... stress . When the loads are within the safe carrying capacity of the material , this condition of stress is shown by ... Compression ; ( 3 ) Shear ; ( 4 ) Bending . A body is subjected to tension or is under a [ 169 ]
Сторінка 170
... tension or is under a tensile stress when acted upon by forces which tend to tear or pull it apart , as a stretched rope . A body is under compression or undergoes a compressive stress when the external forces tend to crush the material ...
... tension or is under a tensile stress when acted upon by forces which tend to tear or pull it apart , as a stretched rope . A body is under compression or undergoes a compressive stress when the external forces tend to crush the material ...
Сторінка 173
... load directly . Their object is to increase the bearing power of the concrete by preventing lateral expansion or bulging under the action of the compressive forces . Tests published by Considère in 1903 indicate that steel in the form ...
... load directly . Their object is to increase the bearing power of the concrete by preventing lateral expansion or bulging under the action of the compressive forces . Tests published by Considère in 1903 indicate that steel in the form ...
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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.