Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 15
yinto the forms. It is more economical to wheel material a distance offrom 10 to 25 feet than to carry it in shovels. Eight feet is about asfar as it is profitable to shovel. When material is to be wheeled, runways of planks should be pro-vided, because more material can be handled in a given time,… … Fig. 6.—Sectional forms. room. They should be anchored securely and made rigid, as springyor loose boards retard progress of the work. Smooth joints in theplanking will prevent bumping and stumbling. NUMBER OF MEN. The number of men required is determined by the amount of con-crete to be placed in…
