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
... prevent the mortar from cracking . It also causes the lime paste to spread out in thin films around each grain and thus enables it to harden . Too much sand should not , however , be used , as it tends to make the mortar porous . The ...
... prevent the mortar from cracking . It also causes the lime paste to spread out in thin films around each grain and thus enables it to harden . Too much sand should not , however , be used , as it tends to make the mortar porous . The ...
Сторінка 18
... cement is determined by its rate of setting . For most purposes , where immediate setting is not required to prevent disturbance of the mortar before hardening , the moderately slow - setting cements are found most convenient , as [ 18 ]
... cement is determined by its rate of setting . For most purposes , where immediate setting is not required to prevent disturbance of the mortar before hardening , the moderately slow - setting cements are found most convenient , as [ 18 ]
Сторінка 33
... prevented the formation of sulphuric acid , or the sewer might have been given a vitrified lining , or it may be possible to apply a coating which will protect sewers from this sort of destruction . " Structures have been protected ...
... prevented the formation of sulphuric acid , or the sewer might have been given a vitrified lining , or it may be possible to apply a coating which will protect sewers from this sort of destruction . " Structures have been protected ...
Сторінка 37
... prevent hardening . The kind of impurity is really of more importance than the quantity . How to Test for a Clean Sand . * - Two rough tests are as follows : ( a ) Pick up a double handful of moist sand from the bank ; open the hands ...
... prevent hardening . The kind of impurity is really of more importance than the quantity . How to Test for a Clean Sand . * - Two rough tests are as follows : ( a ) Pick up a double handful of moist sand from the bank ; open the hands ...
Сторінка 38
... prevent the good particles from passing through it . This must be supported by cleats placed quite near together , or it will break through . The sand is shoveled on to the upper end of the trough by one man , while another one can wash ...
... prevent the good particles from passing through it . This must be supported by cleats placed quite near together , or it will break through . The sand is shoveled on to the upper end of the trough by one man , while another one can wash ...
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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
Популярні уривки
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.