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

Nam, Boo Hyun; Behring, Zachary; Kim, Jinyoung; Chopra, Manoj; University of Central Florida. Dept. of Civil, Environmental and Construction Engineering

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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 ; ...

[PDF-3.70 MB]

English

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Creators:

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

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

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

United States. Dept. of Transportation
Subject/TRT Terms:

[+]

Compressive Strength Concrete Aggregates Drainage Structures Evaluation Fines (Materials) Heat Of Hydration Permeability Physical Properties Recycled Materials
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
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:e653eacf6288bccdcf7707af8a50779f1f44cf5ae9ec01e12fecb499185feb7e
Download URL:

https://rosap.ntl.bts.gov/view/dot/27238/dot_27238_DS1.pdf
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Evaluate the use of reclaimed concrete aggregate in french drain applications.

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