. Electric railway journal . Corrugated Iron Culvert Pipe, 36 in. in Diameter, withShallow Cover Supporting Interurban Car WithoutDeflection. Corrugated Iron Culvert Pipe Supporting Track LaidDirectly Upon It withstand concentrated loads. The economy of reinforced con-crete structures depends very largely on the local conditionsunder which they are built. Since the recent production on acommercial scale of iron sheets of per cent purity and re-markable rust-resisting properties it has been possible to manu-facture corrugated culvert pipes of this metal which weigh onlyabout one-tenth as
. Electric railway journal . Corrugated Iron Culvert Pipe, 36 in. in Diameter, withShallow Cover Supporting Interurban Car WithoutDeflection. Corrugated Iron Culvert Pipe Supporting Track LaidDirectly Upon It withstand concentrated loads. The economy of reinforced con-crete structures depends very largely on the local conditionsunder which they are built. Since the recent production on acommercial scale of iron sheets of per cent purity and re-markable rust-resisting properties it has been possible to manu-facture corrugated culvert pipes of this metal which weigh onlyabout one-tenth as much as cast-iron pipes of the same size, with equal or greater strength against crushing. The cost isless than half that of cast-iron pipe and the life is estimated atnot less than 40 years under the most unfavorable conditions. The American Rolling Mill Company, of Middletown, Ohio,is now rolling from ingots made by a special process sheetsof iron containing less than per cent of impurities, and isfurnishing these sheets to a number of manufacturers through-out the country, who are making from them corrugated pipeof all sizes an
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
