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 6
... thick wall , lime mortar will harden only after the lapse of years or perhaps never . Lime mortar can neither harden nor acquire strength when used under water or in soil that is constantly wet , because slaked lime cannot crystallize ...
... thick wall , lime mortar will harden only after the lapse of years or perhaps never . Lime mortar can neither harden nor acquire strength when used under water or in soil that is constantly wet , because slaked lime cannot crystallize ...
Сторінка 11
... thick , creamy consistency . The wet mixture is then ground either in a pug mill or edge runner and run into slurry tanks , where it is constantly stirred by means of pedals or compressed air . The wet slurry is then pumped directly ...
... thick , creamy consistency . The wet mixture is then ground either in a pug mill or edge runner and run into slurry tanks , where it is constantly stirred by means of pedals or compressed air . The wet slurry is then pumped directly ...
Сторінка 15
... thick . The second coat is thinner and is composed of neat cement without the admixture of sand . Portland cement with a large proportion of sand , as much as 90 per cent being used , is useful for interior work . It may be used as a ...
... thick . The second coat is thinner and is composed of neat cement without the admixture of sand . Portland cement with a large proportion of sand , as much as 90 per cent being used , is useful for interior work . It may be used as a ...
Сторінка 21
... thick in the middle and with thin edges on glass plates , and allow them to set . When the pat just resists the pressure of a needle inch in diameter weighted with 1/4 pound it is said to have had its initial set . This is usually ...
... thick in the middle and with thin edges on glass plates , and allow them to set . When the pat just resists the pressure of a needle inch in diameter weighted with 1/4 pound it is said to have had its initial set . This is usually ...
Сторінка 24
... thick at 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 ...
... thick at 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 ...
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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.