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 5
... increases from 2 % to 3 % 1⁄2 times its original volume , while the amount of water which it will absorb is nearly 1/4 of its weight . When just enough water is added to lime to cause it to slake , it forms a powder ; when more water is ...
... increases from 2 % to 3 % 1⁄2 times its original volume , while the amount of water which it will absorb is nearly 1/4 of its weight . When just enough water is added to lime to cause it to slake , it forms a powder ; when more water is ...
Сторінка 28
... increased . For the coarse aggregate a variety of materials are in common use . Crushed stone , such as trap rock , granite , limestone , conglom- erate , sandstone , and slate , also gravel and cinders , give satisfac- tion . Trap and ...
... increased . For the coarse aggregate a variety of materials are in common use . Crushed stone , such as trap rock , granite , limestone , conglom- erate , sandstone , and slate , also gravel and cinders , give satisfac- tion . Trap and ...
Сторінка 32
... increases the chances of disinte- gration and , ( 2 ) that porous brick and porous stone suffer equally . " The alkali solution must penetrate the concrete if it is to be dangerous . It is known , however , as certainly as may be , that ...
... increases the chances of disinte- gration and , ( 2 ) that porous brick and porous stone suffer equally . " The alkali solution must penetrate the concrete if it is to be dangerous . It is known , however , as certainly as may be , that ...
Сторінка 35
... increased , and in very much larger inverse ratio . 8. Rate of flow is less as the maximum size of the stone is ... increases nearly uniformly with the increase in pressure . 13. Rate of flow increases as thickness of concrete decreases ...
... increased , and in very much larger inverse ratio . 8. Rate of flow is less as the maximum size of the stone is ... increases nearly uniformly with the increase in pressure . 13. Rate of flow increases as thickness of concrete decreases ...
Сторінка 40
... increased . This applies particularly to the leaner mixtures . If carefully mixed , therefore , the clay will not cling to the stone , but will become part of the mortar , and in testing for proportions of stone , sand , and cement ...
... increased . This applies particularly to the leaner mixtures . If carefully mixed , therefore , the clay will not cling to the stone , but will become part of the mortar , and in testing for proportions of stone , sand , and cement ...
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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.