Use of Coal Fly Ash and Other Waste Products in Soil Stabilization and Road Construction Including Non-Destructive Testing of Roadways

Ge, Yuning Louis; Rosenblad, Brent L.; Stephenson, Richard W.; Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety

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Use of Coal Fly Ash and Other Waste Products in Soil Stabilization and Road Construction Including Non-Destructive Testing of Roadways

2012-06-01
By Ge, Yuning Louis ; Rosenblad, Brent L. ; Stephenson, Richard W.

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English

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Creators:

Ge, Yuning Louis ; Rosenblad, Brent L. ; Stephenson, Richard W.

Ge, Yuning Louis ; Rosenblad, Brent L. ; Stephenson, Richard W. Less -
Corporate Creators:

Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
Corporate Contributors:

United States. Dept. of Transportation. Research and Innovative Technology Administration
Subject/TRT Terms:

[+]

Construction Fly Ash Fossil Fuels Geotechnology Highways I42: Soil Mechanics I52: Construction Of Pavements And Surfacings Laboratory Tests Nondestructive Tests Pavement Performance Pavements, Concrete Performance Quality Control Research Hub Road Construction Soil Stabilization Subgrade (Pavements) Subgrades Testing Waste Products Waste Products As Road Materials
Publication/ Report Number:

cmr 13-006
Resource Type:

Tech Report
Geographical Coverage:

Missouri ; United States

Missouri ; United States Less -
TRIS Online Accession Number:

1496741
Edition:

Final report.
Corporate Publisher:

Missouri. Dept. of Transportation
NTL Classification:

NTL-HIGHWAY/ROAD TRANSPORTATION-Construction and Maintenance;NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance;NTL-HIGHWAY/ROAD TRANSPORTATION-Soils and Geology;
Abstract:

An extensive laboratory testing program was performed on subgrade soils stabilized using fly ash and lime kiln dust. The laboratory program included measurements of: compaction curves, small strain elastic moduli, resilient modulus (Mr), Briaud Compaction Device (BCD) modulus, and unconfined compressive strengths of subgrade soils mixed with various amounts of Class C fly ash and lime kiln dust (LKD). The objectives of this study were to (1) quantify changes with time in subgrade modulus and strength from soil stabilization and (2) evaluate potential non-destructive quality control (QC) methods. The amount of improvement in subgrade modulus varied with soil type and soil stabilizer. Increases in Mr values by up to a factor of five were observed. Relative changes in resilient modulus with time were compared to changes in modulus values measured from small-strain velocity measurements and the BCD (both of which can be applied in the field for QC) with mixed results. In many cases, the trends in modulus change were in good agreement, but in other cases significant differences were observed. Short-term tracking of wave velocity of stabilized soil showed increases of about 20 to 40% (relative to the unstabilized soil) within 1-hour after compaction. Future studies should focus on evaluation of these non-destructive testing (NDT) methods under field conditions.
Format:

PDF
Funding:

DTRT06-G-0014
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:665bb46a51e02f86c8b309452917785725a3733f000eb7a6f85eb8ba44a6c87e
Download URL:

https://rosap.ntl.bts.gov/view/dot/25524/dot_25524_DS1.pdf
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Use of Coal Fly Ash and Other Waste Products in Soil Stabilization and Road Construction Including Non-Destructive Testing of Roadways

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