Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 9
generalwork is 4 to 5 gallonsto each sack of cement. Three degrees ofconsistency (corre-sponding to differentproportions ofwater) are used ingeneral practice,namely, wet, medium, and dry. In the light of recent investigationsit is thought the wet mixture of present-day practice contains toomuch… … Fig. 2.—The result of using too dry a mixture, lack of spad-ing and careless placing; note irregularity of layers andpoor bonding. Plain Concrete for Farm Use. 9 Medium mixture.—One that is between the wet and dry mixture.This consistency is recommended for general work. Dry mixture.—One about like…
