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 22
... allowed to set either 1 , 7 , or 28 days and sometimes for even longer periods running into many years . They are then broken in testing machines . The briquettes are made both of pure cement and of cement mortar mixed with varying ...
... allowed to set either 1 , 7 , or 28 days and sometimes for even longer periods running into many years . They are then broken in testing machines . The briquettes are made both of pure cement and of cement mortar mixed with varying ...
Сторінка 28
... allowed . A similar effect is produced by the addition of a small quantity of hydrated lime or waterproofing compound to cement mortar , the density and water - tightness being increased . For the coarse aggregate a variety of materials ...
... allowed . A similar effect is produced by the addition of a small quantity of hydrated lime or waterproofing compound to cement mortar , the density and water - tightness being increased . For the coarse aggregate a variety of materials ...
Сторінка 30
... allowed . Effect of Oils . - Mineral oil when mixe an emulsion with the alkali and water , res mortar and one much more free from exp cracks . The oil also has the effect of delay set somewhat and of decreasing the streng The use of ...
... allowed . Effect of Oils . - Mineral oil when mixe an emulsion with the alkali and water , res mortar and one much more free from exp cracks . The oil also has the effect of delay set somewhat and of decreasing the streng The use of ...
Сторінка 62
... allowed to sink through water is destroyed ; the cement paste is washed away and the sand and stone settle on to the bottom more or less segregated and practically without cementing value . 3'01 FIG . 16. Tremie To overcome these ...
... allowed to sink through water is destroyed ; the cement paste is washed away and the sand and stone settle on to the bottom more or less segregated and practically without cementing value . 3'01 FIG . 16. Tremie To overcome these ...
Сторінка 91
... a wooden or iron scratch , which may have from one to five points . The first coat should be allowed to stand for an hour or two so as to allow the stuff to become firm , after which th diagonally [ 91 ] Mortars , Plasters , and Stuccos.
... a wooden or iron scratch , which may have from one to five points . The first coat should be allowed to stand for an hour or two so as to allow the stuff to become firm , after which th diagonally [ 91 ] Mortars , Plasters , and Stuccos.
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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.