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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: Comparative results of utilization of fly ash, silica fume and GGBFS in reducing the chloride permeability of concrete
Author(s): William e. Ellis, Jr., Eugene H. Riggs, and W. B. Butler
Publication: Special Publication
Appears on pages(s): 443-458
Keywords: blast furnace slag; chlorides; compressive strength; concretes; durability; fly ash; permeability; silica fume; superplasticizers; Materials Research
Abstract:This research project was undertaken to determine the effect on the chloride permeability of concretes of increasing amounts of fly ash in low water-cementitious material ratio concrete as compared with comparable high-quality concretes containing combinations of portland cement, silica fume, and ground-granulated blast furnace slag. The test method utilized was the Rapid Determination of the Chloride Permeability of Concrete (AASHTO T-277). Fifteen superplasticized concrete mixtures were evaluated for compressive strength at ages of 28 and 56 days, and for chloride permeability at 56 days. The inclusion of fly ash, silica fume, and ground-granulated blast furnace slag all significantly reduced the chloride permeability of concrete as compared with concrete containing only portland cement. Increasing amounts of fly ash generally showed decreased permeability in the tests conducted.
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