San Francisco : Architect and Engineer, Inc · leaf 12
rmity in the con-crete was obtained as a result of the controlof the mixing which this plant made pos-sible. An inspector was maintained at the duction. There resulted concrete of uni-form strength, uniform workability, and—what to the contractors was most pleasing—of uniform high economy: having… … HOSPITAL BUILDING. HAMILTON FIELD. CALIFORNIA plant at all times. It was his duty to seethat concrete was produced containingspecified weights of water, cement, andaggregates. He made complete records ofall mixtures and all deliveries. Frequentcalibrations were made to assume theproper water-cement…
Architecture · Building
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