Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 21
ited. When pouring of a wall is to be discontinued forsome time, provision for the bonding of futurework should be made. This may be done by plac-ing short steel dowels in the concrete when it ispoured, or a rebated joint or groove may be made, as shown in Figure15. In bonding a new wall to old… … Boa Fig. 15.—Method offorming horizontalrebate. PLACING UNDER WATER. Concrete can be placed under still water if proper precautions aretaken. It should never be placed, while soft, in running water unlessa form or cofferdam is used, as the cement will be washed out. Whenconcrete is to be placed…
