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Investigation of Concrete Containing Slag: Hampton River Bridge
H. Celik Ozyildirim
H. Celik Ozyildirim
Year: 1986
VTRC No.: 86-R39
Abstract: The study evaluated the properties of concretes containing slag in a 50% replacement of the portland cement to assess their suitability as an alternative to the portland cement concretes normally used in the construction of bridge substructures. For the major portion of the study, samples were obtained from freshly mixed concrete used in the construction of the substructure for the Rte. 143 bridge over the Hampton River and also from a failed pier footing for the bridge. In the laboratory, a limited investigation was made of the effects of temperature on concretes with and without slag. The results indicate that concretes containing quality slag will perform satisfactorily in bridge substructures. However, it has been shown that strength development in concretes containing slag is more adversely influenced by cold weather than is that of concretes without slag. Also, it is noted that in cold weather there may be a significant delay in the time of set.