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Title: LABORATORY CHARACTERIZATION OF CEMENT-STABILIZED IRON-RICH SLAG FOR REUSE IN TRANSPORTATION FACILITIES
Accession Number: 00646079
Record Type: Component
Availability: Find a library where document is available Abstract: An iron process residue aggregate referred to as Iron Rich Material (IRM) was characterized and tested in the laboratory to determine its potential as a highway construction material. Cement-mixed and -stabilized products of IRM were subjected to ASTM-based standard tests to determine and compare their strength, permeability, and durability. The potential reuse capacity of IRM was envisioned as aggregate in making stabilized road base, subbase, or subgrade. The aggregate portion of the material was classified as A-1-b by AASHTO and SW by ASTM. This material was stabilized with cement, lime, and fly ash at varying proportions by weight of the total additives. The resulting products were compacted at their predetermined optimum moisture contents and cured. Then samples of the cured products were tested for unconfined compressive strength, unconfined tensile strength, freeze-thaw durability, and hydraulic conductivity. The best results were obtained with cement-stabilized aggregate for which the 7-day unconfined compressive strength was between 102 and 116 kPa (700 and 800 psi) and the unconfined tensile strength was between 14 and 22 kPa (100 and 150 psi). For these specimens the 12-cycle freeze-thaw test resulted in less than 5% material loss. The 45-day cured unconfined compressive strength of the cement admixture stabilized IRM was over 145 kPa (1,000 psi), which is comparable to approximate strength of 138 kPa (950 psi) for soil cement of sandy gravel with 6% cement used in base or subbase courses for heavy traffic. The general conclusion of the work was that the particular residue material, IRM, when stabilized with cement and cementitious substances may be a viable aggregate for reuse in construction of road bases.
Supplemental Notes: This paper appears in Transportation Research Record No. 1424, Environmental Issues Related to Materials and 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 Title: Monograph Accession #: 01398725
Language: English
Authors: Pamukcu, SibelTuncan, AhmetPagination: p. 25-33
Publication Date: 1993
Serial: ISBN: 0309055717
Features: Figures
(4)
; References
(13)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways; Materials; I35: Miscellaneous Materials
Files: TRIS, TRB
Created Date: Apr 13 1994 12:00AM
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