Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 25
t. Barbed wire, old fencing, and scrap or rusty iron is not suitablefor reinforcement. Loose rust should be cleaned off the rods andthey should be free of grease and oil. Joints and imperfections in the forms are reproduced on the con-crete surfaces. Patches of honeycomb and rough places are… … Fig. 18.—Reinforcement ofopenings less than 4 feetwide. Fig. 19.—Reinforcement of openingsmore than 4 feet wide. SURFACE FINISH. Plain Concrete for Farm Use. 25 ance (see Fig. 14). Too of ten the finishing of the concrete work in eventhe more important farm buildings is neglected. With little…
