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Title: Strength and Stiffness of Recycled Base Materials Blended with Fly Ash
Accession Number: 01122328
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Abstract: Properties of a recycled pavement material (RPM) and a road surface gravel (RSG) stabilized with a Class C fly ash are compared to the properties of a conventional base material (Minnesota Class 5 base). California bearing ratio (CBR), resilient modulus (Mr), and unconfined compressive strength (UCS) tests were conducted to evaluate the effects of adding fly ash to the RPM and RSG to enhance their mechanical properties. Freeze-thaw durability was evaluated in terms of Mr and UCS. CBR, Mr, and UCS for RPM and RSG increased with fly ash content. Mr and UCS for RPM and RSG increased with curing time, with significant gains occurring after 7 and 28 d of curing. Addition of fly ash reduced plastic strains of the recycled materials during resilient modulus testing. Freeze-thaw cycling had a small effect on the Mr and UCS of the recycled materials. A strong relationship was found between summary resilient modulus (SRM) and UCS of recycled materials blended with fly ash, suggesting that the SRM can be estimated from a UCS test.
Monograph Title: Monograph Accession #: 01120148
Report/Paper Numbers: 09-1971
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Camargo, Felipe FilizzolaEdil, Tuncer BBenson, Craig HPagination: 15p
Publication Date: 2009
Conference:
Transportation Research Board 88th Annual Meeting
Location:
Washington DC, United States Media Type: DVD
Features: Figures
(6)
; References
(19)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways
Source Data: Transportation Research Board Annual Meeting 2009 Paper #09-1971
Files: TRIS, TRB
Created Date: Jan 30 2009 6:16PM
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