Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 24
hen not castin alternate blocks, should have a one-fourth inch space left at inter-vals of 40 feet. The joint may be filled with tar paper or tar. Steelis used to take care of contraction in long or high walls and water-tight work. Important structures in which temperature reinforce-ment is… … 24 Farmers9 Bulletin 1279. walls of most farm structures, a general explanation is given of thereinforcement of lintels or that portion of concrete immediatelyabove an opening, such as a floor or window. A lintel is a beam, and when a beam bends the lower part isstretched or pulled while the upper…
