Evaluation of Low-Quality Recycled Concrete Pavement Aggregates for Subgrade Soil Stabilization [Technical Summary]

Tavakol, Massoumeh; Kulesza, Stacey; Jones, Christopher; Wu, Xingdong; Hossain, Mustaque

i

Evaluation of Low-Quality Recycled Concrete Pavement Aggregates for Subgrade Soil Stabilization [Technical Summary]

2024-07-01
By Tavakol, Massoumeh ; Kulesza, Stacey ; Jones, Christopher

File Language:

English

Details

Creators:

Tavakol, Massoumeh ; Kulesza, Stacey ; Jones, Christopher ; Wu, Xingdong ; Hossain, Mustaque
Corporate Creators:

Kansas State University Transportation Center. Department of Civil Engineering
Corporate Contributors:

Kansas. Dept. of Transportation. Bureau of Research ; Kansas Transportation Research and New-Developments (K-TRAN) Research Program
Subject/TRT Terms:
Publication/ Report Number:

K-TRAN: KSU-16-2 P2
Resource Type:

Brief
Geographical Coverage:

Kansas;United States
Edition:

Technical Summary
Corporate Publisher:

Kansas. Department of Transportation
Abstract:

The primary objective of this study was to investigate the suitability of D-cracked RCA for subgrade stabilization for hot-mix asphalt (HMA) pavements. This research also evaluated the strength, stiffness, and shrinkage potential of clay subgrade beneath HMA pavements stabilized using D-cracked RCA and various stabilizers. The selected stabilizers were lime, Class C fly ash, and a combination of portland cement and Class C fly ash. Potential soil improvement was assessed via compaction, unconfined compressive strength (UCS), California Bearing Ratio (CBR), and linear shrinkage tests. In addition, this study used scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) analysis to investigate the RCA-clay interaction to identify the effects of RCA on the microstructure of stabilized mixtures. Finally, this research sought to predict the long-term performance of stabilized mixtures using the AASHTOWare Pavement ME Design software and assess the potential cost savings of using RCA via life-cycle cost analysis (LCCA).
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/76517/dot_76517_DS1.pdf
File Type:

[PDF - 358.82 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:7755921d90b29f736ef1ad528124ecfe45f48c06caa076a9e4625e49fabdf86e519d2adcd3caf4a3cffce9e458c0a6050e8b46bf7820b094306fb66c75a7e15c

File Language:

English

ON THIS PAGE

Details Related Documents

Found an issue?

Send us an email at:

publishinghd@cdc.gov

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.