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 7
... less pronounced than in the case of fat limes . When used in water or in damp places , the actions of common and hydraulic limes differ greatly from each other . While common lime remains soft , hydraulic lime sets with more or less ...
... less pronounced than in the case of fat limes . When used in water or in damp places , the actions of common and hydraulic limes differ greatly from each other . While common lime remains soft , hydraulic lime sets with more or less ...
Сторінка 18
... less it weighs . Hence light weight may be caused either by laudable fine grinding or by objec- tionable under - burning . A barrel of Portland cement , containing 3.8 cu . ft . , should weigh about 380 pounds net ; natural cements ...
... less it weighs . Hence light weight may be caused either by laudable fine grinding or by objec- tionable under - burning . A barrel of Portland cement , containing 3.8 cu . ft . , should weigh about 380 pounds net ; natural cements ...
Сторінка 22
... less than 20 minutes the cement should be rejected , as it will set before the concrete is put into place . A cement which will not set in 10 hours will cause difficulty in placing the concrete and a satis- factory cement should set ...
... less than 20 minutes the cement should be rejected , as it will set before the concrete is put into place . A cement which will not set in 10 hours will cause difficulty in placing the concrete and a satis- factory cement should set ...
Сторінка 24
... less than ten minutes , and shall not hard set in less than thirty minutes , or in more than three hours . Tensile Strength . The minimum requirements for tensile strength for briquettes one inch square in cross - section shall be ...
... less than ten minutes , and shall not hard set in less than thirty minutes , or in more than three hours . Tensile Strength . The minimum requirements for tensile strength for briquettes one inch square in cross - section shall be ...
Сторінка 25
... less than thirty minutes ; and must develop hard set in not less than one hour , nor more than ten hours . Tensile Strength . The minimum requirements for tensile strength for briquettes one inch square in section shall be within . the ...
... less than thirty minutes ; and must develop hard set in not less than one hour , nor more than ten hours . Tensile Strength . The minimum requirements for tensile strength for briquettes one inch square in section shall be within . the ...
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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.