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Title: EVALUATION OF SURFACE MIXTURES OF STEEL SLAG AND ASPHALT
Accession Number: 00602691
Record Type: Component
Availability: Find a library where document is available Abstract: The demand for good-quality highway materials continues to increase whereas economical sources are becoming more limited. This demand may become more critical, especially with the policy (adopted by some state highway departments) of banning some aggregate types that have been frequently used in the past for producing paving mixtures. Steel slag aggregates have not yet been used extensively in pavement layers, even though they have been used successfully in the past. Steel slag has performed well in a number of surface-course applications subject to high traffic volumes (when such mixtures have been properly designed and constructed). Research, development, and demonstration work are still required to ensure the full exploitation of steel slag. The suitability of steel slag aggregates in combination with natural sand was evaluated for use in bituminous pavement surface layers constructed to serve high-volume, high-speed, and heavy-load traffic. This evaluation was made through a literature search, a field investigation, and a laboratory characterization of bituminous mixtures prepared with various gradations and proportions of steel slag aggregate. Marshall-sized specimens were tested in the laboratory for tensile characteristics, expansive properties after freeze-thaw cycling, and Marshall stability. The field investigation included a surface condition survey and skid resistance measurements. Use of steel slag in asphaltic mixes is still highly localized in steel production areas. Some highway agencies do not permit its use, although the performance record of steel slag mixtures is reported to be excellent. Some inputs should be considered in further evaluation of steel slag asphaltic mixtures. This process may lead to the development of technical specifications and recommendations for more extensive use of steel slag aggregates in pavement layers.
Supplemental Notes: This paper appears in Transportation Research Record No. 1269, Asphalt Mix Materials and Mixtures 1990. 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 #: 01407214
Authors: Noureldin, A SamyMcDaniel, Rebecca SPagination: p. 133-149
Publication Date: 1990
Serial: ISBN: 0309050502
Features: Figures
(7)
; Photos
(4)
; References
(23)
; Tables
(14)
TRT Terms: Old TRIS Terms: Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials
Files: TRIS, TRB, ATRI
Created Date: Dec 31 1990 12:00AM
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