Title | Laboratory Freezing-and-Thawing Durability of Fly Ash Pervious Concrete in a Simulated Field Environment |
Publication Type | Journal Article |
Year of Publication | 2015 |
Authors | Anderson, I, Dewoolkar, MM |
Journal | ACI Materials Journal |
Volume | 112 |
Start Page | 603 |
Issue | 5 |
Pagination | 603-612 |
Date Published | 2015/09 |
ISSN | 0889-325X |
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. |
URL | https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51687921 |
DOI | 10.14359/51687921 |
Refereed Designation | Refereed |
Laboratory Freezing-and-Thawing Durability of Fly Ash Pervious Concrete in a Simulated Field Environment
Status:
Published
Attributable Grant:
RACC
Grant Year:
Year5
Acknowledged VT EPSCoR:
Ack-No