Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 249
Note reinforcing specifiedunder erection. 4. CASTING—The concrete as above specified shall bemixed with sufficient water to make it possible to poursame into forms. When forms are filled they shall besecurely placed in machine that will mechanically com-pact the concrete within a period of one hour… … City or H^jatos^ Bxach, Cai,ip CH.ATCHi.ev CITY ENGIfJEtf-
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