San Francisco : Architect and Engineer, Inc · leaf 509
ing the physi-cal properties of the various lightweight aggre-gates—strengths of the materials, shapes of theindividual particles, and the maximum practicalunit strength v/hich can be produced by the vari-ous aggregates. Mr. Erick is of the conviction that: maximumsize of lightweight aggregates… … Newly elected SEAOC Officers: Left to Right: HaroldP. King, vice president; Arthur W. Anderson, president,and Henry Degenkolb, secretary>treasurer. of natural sand consistent with design strengthmaterials,; and that a larger percentage of thefine aggregates in lightweight concrete shouldbe below…
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