Evaluation of recycled concrete as aggregate in new concrete pavements.

Wen, Haifang; McLean, David I.; Boyle, Spencer R.; Spry, Tim C.; Mjelde, Danny G.; Washington State University. Dept. of Civil and Environmental Engineering; Washington State Transportation Center

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Evaluation of recycled concrete as aggregate in new concrete pavements.

2014-04-01
By Wen, Haifang ; McLean, David I. ; Boyle, Spencer R. ; ...

[PDF-1.07 MB]

English

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Details:

Creators:

Wen, Haifang ; McLean, David I. ; Boyle, Spencer R. ; Spry, Tim C. ; Mjelde, Danny G.

Wen, Haifang ; McLean, David I. ; Boyle, Spencer R. ; Spry, Tim C. ; Mjelde, Danny G. Less -
Corporate Creators:

Washington State University. Dept. of Civil and Environmental Engineering ; Washington State Transportation Center

Washington State University. Dept. of Civil and Environmental Engineering ; Washington State Transportation Center Less -
Corporate Contributors:

United States. Federal Highway Administration ; Pacific Northwest Transportation Consortium

United States. Federal Highway Administration ; Pacific Northwest Transportation Consortium Less -
Subject/TRT Terms:

[+]

Coarse Aggregates Concrete Aggregates Concrete Pavements Evaluation Fly Ash Portland Cement Concrete Recycled Materials
Publication/ Report Number:

WA-RD 826.1
Resource Type:

Tech Report
Geographical Coverage:

Washington
Corporate Publisher:

Washington (State). Dept. of Transportation. Office of Research and Library Services
Abstract:

This study evaluated the use of recycled concrete as coarse aggregate in new concrete pavements.

Recycled concrete aggregate (RCA) produced from demolished pavements in three geographically dispersed locations in Washington state were used to perform tests on aggregate characteristics, fresh

concrete properties, and hardened concrete properties. Variables included the source of the RCA, percent

replacement of coarse natural aggregate with RCA (0% to 45%), and percent replacement of portland

cement with type F fly ash (0% or 20%). RCA from all three sources met WSDOT requirements for

aggregates, and all fresh and hardened concrete properties met WSDOT requirements. Replacement of

RCA for natural coarse aggregate by up to 45% by volume had no significant effects on any of the

properties. These results indicate that high-quality RCA can be used as a replacement for a portion of the

coarse natural aggregates in new portland cement concrete pavements in Washington State.
Format:

PDF
Funding:

T4120-32
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:0b046d98d18787142450138eacf573c65bb4ae80a0b0ed21c2bbe94b3b47fc4f
Download URL:

https://rosap.ntl.bts.gov/view/dot/27270/dot_27270_DS1.pdf
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Evaluation of recycled concrete as aggregate in new concrete pavements.

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