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- W817281633 abstract "The use of lightweight concrete in bridge construction allows a considerable reduction in the dead load of the structure. Prestressing necessitates high-strength concrete which only some lightweight aggregates can produce. Sintered pulverised-fuel ash (pfa) aggregates, such as lytag, being able to produce concrete with compressive strengths of over 45n/sq mm are suitable for such applications. Lytag concrete may be used in a prestressed composite member in two ways - precast, prestressed, normal weight concrete component, or precast prestressed lytag concrete component with in-situ lytag concrete component. The second method uses the dead load reduction offered by lytag concrete, while the first avoids problems associated with prestressing any lightweight concrete. The article discusses these factors as well as loss of prestress and differential shrinkage. (Author/TRRL)" @default.
- W817281633 created "2016-06-24" @default.
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- W817281633 date "1982-06-01" @default.
- W817281633 modified "2023-09-27" @default.
- W817281633 title "PFA AGGREGATE CONCRETE IN PRESTRESSED COMPOSITE STRUCTURES" @default.
- W817281633 hasPublicationYear "1982" @default.
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