Chicago : Engineering and Contracting Pub. Co. · leaf 583
I 1 — : . -- LONGITUDINAL SECTION Fig. 3—Center for 102-ft. Arch, Almendares River Bridge. … lar briquettes made with standard Ottawasand. The sand was taken from sand-pits con-taining grains of varying coarseness and con-siderable clay. The washed sand containednot more than about 4 per cent of clay, andshowed a higher tensile strength than thatcontaining about 7 per cent. The broken…
Buildings
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