TRB Pubsindex
Text Size:
x

« Prev Next »

Return to Results | New Search

Bookmark and Share

Title:

Evaluation of Chemically Stabilized Quarry Byproduct Applications in Base and Subbase Layers through Accelerated Pavement Testing

Accession Number:

01696248

Record Type:

Component

Availability:

Find a library where document is available


Order URL: http://worldcat.org/issn/03611981

Abstract:

Research conducted at the Illinois Center for Transportation evaluated sustainable applications of quarry byproducts (QB) or QB blended with coarse recycled aggregates in chemically stabilized base and subbase layers in flexible pavements. In total, eight full-scale test sections, including one conventional flexible pavement with no QB as the control section, were constructed over a subgrade with an engineered strength of 6% California bearing ratio. The test sections were stabilized with either 3% Type I Portland cement or 10% Class C fly ash by dry weight. Fractionated reclaimed asphalt pavements and fractionated recycled concrete aggregates were also used as the recycled coarse aggregates. Based on laboratory tests conducted to determine strength properties of the chemically stabilized samples, QB and recycled aggregates were blended in a ratio of 70% to30% by weight, respectively. A lightweight deflectometer was used to evaluate the quality of the construction and the curing of the test sections. The constructed test sections were then evaluated for performance through accelerated pavement testing (APT) and frequent measurement of surface deformations. The results of APT showed quite a satisfactory rutting performance of all the evaluated QB applications with no observed surface cracking after 135,000 cycles. Four of the test sections were also instrumented with soil pressure cells to measure the wheel load deviator stress on top of the subgrade. The pressure measurements indicated subgrade pressures 3-5 times lower for the stabilized QB sections compared with that of the conventional flexible pavement control section.

Report/Paper Numbers:

19-04922

Language:

English

Authors:

Qamhia, Issam I. A
Tutumluer, Erol
Ozer, Hasan
Shoup, Heather
Beshears, Sheila
Trepanier, James

Pagination:

pp 259-270

Publication Date:

2019-3

Serial:

Transportation Research Record: Journal of the Transportation Research Board

Volume: 2673
Issue Number: 3
Publisher: Sage Publications, Incorporated
ISSN: 0361-1981
EISSN: 2169-4052
Serial URL: http://journals.sagepub.com/home/trr

Media Type:

Digital/other

Features:

Figures (8) ; References (29) ; Tables (3)

Uncontrolled Terms:

Quarry wastes

Subject Areas:

Construction; Geotechnology; Highways; Materials; Pavements

Files:

TRIS, TRB, ATRI

Created Date:

Jan 3 2019 11:46AM