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 82
Сторінка 40
... engineers have shown that clay in small pro- portions , not over 15 per cent , when well mixed in the mortar , does not reduce the strength of the concrete ; in fact , tests have shown . that the strength has been increased . This ...
... engineers have shown that clay in small pro- portions , not over 15 per cent , when well mixed in the mortar , does not reduce the strength of the concrete ; in fact , tests have shown . that the strength has been increased . This ...
Сторінка 42
... be the prime requisites , and then a very small percentage of cement will suffice to obtain a hardened mass ; as low as 5 per cent has given a strong concrete . Voids in Concrete . - American engineers proportion concrete . [ 42 ]
... be the prime requisites , and then a very small percentage of cement will suffice to obtain a hardened mass ; as low as 5 per cent has given a strong concrete . Voids in Concrete . - American engineers proportion concrete . [ 42 ]
Сторінка 43
... engineers proportion concrete . mixtures by measure , thus a 1 : 2 : 4 concrete is composed of 1 volume of cement , 2 volumes of sand , and 4 volumes of broken stone . Both the sand and the coarse aggregates employed for concrete ...
... engineers proportion concrete . mixtures by measure , thus a 1 : 2 : 4 concrete is composed of 1 volume of cement , 2 volumes of sand , and 4 volumes of broken stone . Both the sand and the coarse aggregates employed for concrete ...
Сторінка 44
... engineer and contractor , and has resulted in much friction and litigation . The tendency now is to fix an arbitrary ... engineers and contractors alike . Proportions by Formula . - A number of formulas have been introduced for ...
... engineer and contractor , and has resulted in much friction and litigation . The tendency now is to fix an arbitrary ... engineers and contractors alike . Proportions by Formula . - A number of formulas have been introduced for ...
Сторінка 54
... engineer can at any time check the proportions being used . BROKE STONE SAND CEMEN SPRAY CONTROLLED BY AUTOMATIC FLOAT VALVE MIXING TROUGH FIG . 9. - Concrete Mixer with Automatic Measuring Devices . ( English Type . ) 4. The amount of ...
... engineer can at any time check the proportions being used . BROKE STONE SAND CEMEN SPRAY CONTROLLED BY AUTOMATIC FLOAT VALVE MIXING TROUGH FIG . 9. - Concrete Mixer with Automatic Measuring Devices . ( English Type . ) 4. The amount of ...
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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.