Canadian engineer . r bags each. In determin-ing the necessary size of the cement sheds, con-sider that each bag of cement stored will occupyone cubic foot. Do not build too small. Thereis an increasing demand everywhere for Portlandcement and the trade of local dealers is far sur-passing expectations. The character of trade has much to do withfixing the size of the storage house. Especiallydealers who supply contractors should have suffic-ient room to keep every shipment separate ; for cement usedby contractors and builders must often pass a seven ortwenty-eight-day test before being used. Mo
Canadian engineer . r bags each. In determin-ing the necessary size of the cement sheds, con-sider that each bag of cement stored will occupyone cubic foot. Do not build too small. Thereis an increasing demand everywhere for Portlandcement and the trade of local dealers is far sur-passing expectations. The character of trade has much to do withfixing the size of the storage house. Especiallydealers who supply contractors should have suffic-ient room to keep every shipment separate ; for cement usedby contractors and builders must often pass a seven ortwenty-eight-day test before being used. Moreover, everycement storage house should be large enough to have aislesbetween the piles of various shipments, so that cement maybe removed from storage in the same rotation as it was putin. Storage for Users of Cement.—Many users of Portlandcement need to store it only for the short intervals betweenthe time of hauling it from the dealer and using it in theconcrete work. Any building with a good roof, tight side-. walls, and a dry floor will do. Make a temporary doublefloor by means of small beams or logs and loose boards. Seethat driving rains or damp air cannot reach the cement. Directions for Storing Cement.—Portland cement weightnearly 100 pounds per cubic foot, therefore judgment mustbe exercised in loading the floor. Likewise, on account ofits weight and possible damage from dampness, do not pile 464 THE CANADIAN ENGINEER Volume 22. the cc-mt:nt against the sidewalls of the building, uniess thehouse IS full-line-cl or skelcton-line-d oa the inside. Storethe cement so as to leave an open space or an aisle alongthe side-walls and aisles at places necessary to separateshipments. Get rid of ail possibility of the cement pilestoppling over by laying the bags, as a mason would say,headers and stretchers, that is, alternately lengthwiseand crosswise, so as to tie the pile together. Examine thebuilding frequently to see that there are no leaks in the roofor side-walls. Even
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