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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: Deicer Scaling Resistance of Lean Concretes Containing Fly Ash
Author(s): D. Whiting
Publication: Special Publication
Appears on pages(s): 349-372
Keywords: cement content; compressive strength; concretes; curing; deicers; fly ash; mix proportioning; scaling; Materials Research
Abstract:The resistance to deicer scaling of lean concretes containing fly ash was evaluated using ASTM C 672-84. Concretes were prepared at cement contents of 250, 305, and 335 kg/m3. Six fly ashes were chosen for evaluation at cement replacement levels of 25 and 50 percent by mass in each of the mixtures. Specimens representative of residential flatwork were prepared and cured for 1 and 7 days under moist conditions, then air-dried until initiation of testing at 35 days of age. Results indicate that all mixtures containing fly ash exhibit more rapid and severe scaling than those mixtures prepared with cement alone at the same total cementitious material content. Scaling was found to increase with a decrease in the total cementitious content of the mixture and an increase in the amount of cement replaced. Data on compressive strength, and characteristics of air-void systems in these concretes are also presented.
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