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Title: ESTIMATING THE DESIGN LIFE OF A PROTOTYPE CEMENT-STABILIZED PHOSPHOGYPSUM PAVEMENT
Accession Number: 00670362
Record Type: Component
Availability: Find a library where document is available Abstract: Cement-stabilized phosphogypsum (CSPG) mixtures are demonstrated to have sufficient strength at the modified Proctor compaction level to satisfy the Louisiana Department of Transportation and Development design unconfined compressive strength (UCS) criteria of 1.7 MPa at 7 days for stabilized base material. With 8-12% cement, at 95% of modified Proctor maximum dry unit weight, CSPG had greater resilient modulus and UCS values than the commonly used river silt. Life estimates for a prototype road were highly dependent on the bearing capacity of the subgrade soil. The CSPG base produced acceptable estimated design lives for secondary roads at an attractive cost compared with conventional limestone aggregate.
Supplemental Notes: This paper appears in Transportation Research Record No. 1440, Design and Performance of Stabilized Bases, and Lime and Fly Ash Stabilization. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Accession #: 01401273
Language: English
Authors: Gerrity, D MMetcalf, J BSeals, R KPagination: p. 32-36
Publication Date: 1994
Serial: Features: Figures
(4)
; References
(9)
; Tables
(5)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Geotechnology; Highways; I42: Soil Mechanics
Files: TRIS, TRB
Created Date: Nov 30 1994 12:00AM
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