Plain concrete for farm use, farmers' bulletin no. 1279 (1922)
U. S. Department of Agriculture · U.S. Department of Agriculture · leaf 20
, that allchips or loose particles are removed, that the surface of concretewhich has set has been properly roughened and wetted to assure abond, as described on page 20, and that all reinforcement, bolts,inserts, etc., are properly located and secured. At the lunchperiod, or at the end of a days… … 1592 Fig. 14.—Showing result of leaky forms and poor placing. The soft cement mortar ranout, leaving areas of honeycombed surface not necessarily harmful hut unsightly. tools will lower the efficiency of the workers. Moreover, it will savetime and wear and tear of equipment incident to cutting the…
