San Francisco : Architect and Engineer, Inc · leaf 431
tched here from Roeblings easternplant arriving early in March. In this shipment 6 different materials were applied to the coils of wire. Somewere wrapped in paper and others coatedwith various waxes and greases. Upon their arrival samples were takenand carefully wrapped in cotton battingand then… … STOCK PILE OF GRAVELITE AT 1 L.\:. 1, IOINT RICHMOND, CALIFORNIAThis material mixed with cement makes a light weight concrete that is destined to revo-lutionize the present method of making structural concrete. Engineers say its use on theupper deck of the Bay Bridge will mean a saving of 20,000…
Architecture · Building
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