San Francisco, Calif. : Architect and Engineer Co · leaf 521
Fi^. 4. Jesting Concrete Blocks … It^. s. Jesliii^ Itrcl^i outing (Jiialtttvs of Coniicle 48 The Architect and Engineer of California All the cement blocks used in these investigations are mixed in theconcrete block machines. The concrete is mixed in a one-third cubic yardcubical concfete mixer and deposited on the floor of the…
Architecture · Building
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