Concrete debris assessment for road construction activities : final report.

Townsend, Timothy; Chadik, Paul; Gupta, Nautasha; Kluge, Matthew; Vinson, Tim; Schert, John; University of Florida

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Concrete debris assessment for road construction activities : final report.

Published Date:

2016-08-01

Language:

English

[PDF-2.66 MB]

Details:

Creators:

Townsend, Timothy ; Chadik, Paul ; Gupta, Nautasha ; Kluge, Matthew ; Vinson, Tim ; ... More ▼

Corporate Creators:

University of Florida

Corporate Contributors:

Florida. Dept. of Transportation

Subject/TRT Terms:

[+]

Resource Type:

Tech Report

Geographical Coverage:

United States ; Florida ;

Edition:

Final report

Corporate Publisher:

Florida. Dept. of Transportation

Abstract:

Two distinct but related issues of importance to FDOT were investigated: (1) the possible impact of recycled concrete aggregate (RCA) used as road base on the subsurface environment and (2) the management of concrete grinding residuals (CGR) resulting from grooving and grinding operations for Portland cement concrete pavements. Results from the literature and from testing on Florida-specific RCA indicate that the leachate produced by the contact of water with RCA is elevated in pH. Several factors were demonstrated to reduce leachate pH in the environment, but the extent to which this reduction will occur depends on environmental conditions that require additional testing to evaluate. CGR produced from concrete grinding operations is not hazardous waste, but is elevated in pH and requires appropriate management. Best management practices should be implemented for CGR, and examples of such practices are available. Management of CGR with concrete truck washout is a viable option. If CGR is discharged adjacent to roadways, care must be taken to avoid impact on ecosystems.

Format:

PDF

Funding:

BDV31-977-48

Collection(s):

US Transportation Collection

Main Document Checksum:

[+]

Supporting Files:

No Additional Files

No Related Documents.

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