Evaluate the use of reclaimed concrete aggregate in french drain applications.

Nam, Boo Hyun; Behring, Zachary; Kim, Jinyoung; Chopra, Manoj

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Evaluate the use of reclaimed concrete aggregate in french drain applications.

2014-02-01
By Nam, Boo Hyun ; Behring, Zachary ; Kim, Jinyoung

File Language:

English

Details

Creators:

Nam, Boo Hyun ; Behring, Zachary ; Kim, Jinyoung ; Chopra, Manoj
Corporate Creators:

University of Central Florida. Dept. of Civil, Environmental and Construction Engineering
Corporate Contributors:

United States. Dept. of Transportation
Subject/TRT Terms:
Publication/ Report Number:

BDK 78 TWO 977-12
Resource Type:

Tech Report
Geographical Coverage:

Florida
Corporate Publisher:

Florida. Dept. of Transportation. Office of Construction
Abstract:

Recycled concrete aggregate (RCA) is often used as a replacement of virgin aggregate in road ; foundations (base course), embankments, hot-mix asphalt, and Portland cement concrete; however, the ; use of RCA in exfiltration drainage systems, such as French drains, is uncommon. 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 (geotextile) permittivity. RCA was tested for its physical ; and chemical properties, and aggregate cleaning/washing methods were applied to evaluate the fines ; removal processes. The potential for RCA rehydration was evaluated by the use of compressive ; strength, pH, heat of hydration, and time of setting tests. Permeability testing on RCA was conducted ; under varied testing conditions, such as, percent fines addition, hydraulic gradient, and tubing and ; permeameter sizes. In addition, a long-term permeability was monitored to measure the clogging ; buildup due to RCA fines and calcite precipitation.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/27238/dot_27238_DS1.pdf
File Type:

[PDF - 3.70 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha256:e653eacf6288bccdcf7707af8a50779f1f44cf5ae9ec01e12fecb499185feb7e

File Language:

English

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