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 viii
... GIRDER BRIDGES Advantages of Concrete Bridges . - Kinds of Girder Bridges . - Reinforced Concrete . - Trusses . - Viaducts . - Concrete Floors . Abutments . - Cen- tring . - Depositing Concrete . - Surface Finish , CHAPTER XXV CONCRETE ...
... GIRDER BRIDGES Advantages of Concrete Bridges . - Kinds of Girder Bridges . - Reinforced Concrete . - Trusses . - Viaducts . - Concrete Floors . Abutments . - Cen- tring . - Depositing Concrete . - Surface Finish , CHAPTER XXV CONCRETE ...
Сторінка 71
... girders which support the entire load . The middle of the floor slab form is further supported by a 2 x 4 inch piece resting on the cross bracing . In removing beam and girder forms , the posts should be taken from only one girder at a ...
... girders which support the entire load . The middle of the floor slab form is further supported by a 2 x 4 inch piece resting on the cross bracing . In removing beam and girder forms , the posts should be taken from only one girder at a ...
Сторінка 73
... girder , and slab construction and their use is likely to increase in the near future on account of the rapid rise in the price of lumber . The chief difficulties in the use of such forms are their liability to leakage , tendency to ...
... girder , and slab construction and their use is likely to increase in the near future on account of the rapid rise in the price of lumber . The chief difficulties in the use of such forms are their liability to leakage , tendency to ...
Сторінка 74
... girders , from 2 to 4 weeks ; and for large - sized arches , from 1 to 3 months . Design of Forms . - The following ... girder forms ; and struts . 3. For allowable compression in struts use 600 to 1,200 lbs . per sq . in . , varying ...
... girders , from 2 to 4 weeks ; and for large - sized arches , from 1 to 3 months . Design of Forms . - The following ... girder forms ; and struts . 3. For allowable compression in struts use 600 to 1,200 lbs . per sq . in . , varying ...
Сторінка 75
... girders and long span slabs : in summer , ten days or two weeks ; in cold weather , three weeks to one month . If shores . are left without disturbing them , the time of removal of the sheeting in summer may be reduced to one week ...
... girders and long span slabs : in summer , ten days or two weeks ; in cold weather , three weeks to one month . If shores . are left without disturbing them , the time of removal of the sheeting in summer may be reduced to one week ...
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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.