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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: Laboratory Freezing-and-Thawing Durability of Fly Ash Pervious Concrete in a Simulated Field Environment
Author(s): Ian Anderson and Mandar M. Dewoolkar
Publication: Materials Journal
Appears on pages(s): 603-612
Keywords: fly ash; freezing-and-thawing resistance; pervious concrete; porous concrete; salt damage
Abstract:This laboratory study investigated the durability of pervious
concrete containing fly ash to freezing and thawing and salt exposure in a field-representative environment. Pervious concrete was prepared by replacing cement with 0, 10, 20, and 30% fly ash. The specimens were subjected to one slow freezing-and-thawing cycle per day up to 100 days in a drained condition with sodium chloride solution with concentrations of 0, 2, 4, 8, and 12%. The void content, compressive strength, and hydraulic conductivity of the mixtures were all within the range of typical pervious concrete applications. Freezing-and-thawing testing suggested that for all concentrations of salt solution, 10 and 20% fly ash replacement improved freezing-and-thawing durability. Specimens with 30% fly ash showed more damage than that of the 0% control. The greatest damage from salt solutions was seen in 8%, 4%, and 2% concentrations,
respectively. Water and 12% salt solution showed little damage across all mixture designs.
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