Chapter
Jun 2, 2014

Clogging Potential of Recycled Concrete in Road Drainage

Publication: T&DI Congress 2014: Planes, Trains, and Automobiles

Abstract

Recycled concrete aggregate (RCA) is often used as a replacement or partial replacement of virgin aggregate. Commonly RCA is used in road foundations (base course), embankments, hot-mix asphalt, or Portland cement concrete. However the use of RCA in drainage systems, such as French drains, is currently prohibited in the state for Florida. The primary concerns with using RCA as a drainage media are the fines content and the precipitation of calcium carbonate to cause a reducing in filter fabric permittivity. Not much research has been conducted as it relates to using RCA as a drainage material; this limited information inhibits its use in French drains. This paper describes the investigation of permeability of RCA as a No. 4 aggregate gradation and base course gradation. The effect of excess fines (passing the No. 200 sieve) and the precipitation potential of calcium carbonate have also been studied.

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Go to T&DI Congress 2014
T&DI Congress 2014: Planes, Trains, and Automobiles
Pages: 153 - 162

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Published online: Jun 2, 2014

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Zachary Behring
Department of Civil, Environmental, University of Central Florida, and Construction Engineering; 4000 Central Florida Blvd., Orlando, FL 32816
BooHyun Nam [email protected]
Department of Civil, Environmental, University of Central Florida, and Construction Engineering; 4000 Central Florida Blvd., Orlando, FL 32816. E-mail: [email protected]
Jinyoung Kim
Department of Civil, Environmental, University of Central Florida, and Construction Engineering; 4000 Central Florida Blvd., Orlando, FL 32816
Manoj Chopra
Department of Civil, Environmental, University of Central Florida, and Construction Engineering; 4000 Central Florida Blvd., Orlando, FL 32816
John Shoucair
Florida Department of Transportation State Material Office, 5007 NE 39th Ave, Gainesville, FL 32609

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