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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: An Unusual Case of Surface Deterioration on a Concrete Bridge Deck
Author(s): John Ryell
Publication: Journal Proceedings
Appears on pages(s): 421-442
Keywords: Admixture, bleeding, bridge deck, curing, durability, flaking, pavement, research, set-retarding admixture.
Abstract:Set retarded concrete placed in a bridge deck and finished with conventional equipment exhibited a severe surface deterioration in the form of flaking several days after poving. Similar concrete placed in the approach slab on a granular subgrade did not flake. laboratory and field investigations showed that the flaking was due to the formation of a weak plane immediately below the surface of the concrete and was closely con-nected with the bleeding characteristics of the mix. The solution was found in reducing the bleeding rate of the concrete by a change in the type of set retarding admixture.
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