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Title: STABILIZATION OF SILTY SAND WITH NONTRADITIONAL ADDITIVES
Accession Number: 00930581
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: A laboratory experiment was conducted to evaluate the stabilization of a silty-sand (SM) material with nontraditional chemical or liquid stabilizers. SM soil specimens were mixed with various stabilization products and compacted using a gyratory compaction machine to approximate ASTM D1557 moisture-density compaction. Each specimen was subjected to wet and dry testing following the designated cure period. Twelve nontraditional stabilizers were evaluated in this experiment, including acids, enzymes, lignosulfonates, petroleum emulsions, polymers, and tree resins. Additional specimens were stabilized with an asphalt emulsion, cement, and lime to provide a comparison with traditional stabilizers under the same mixing, compaction, and curing conditions. The analysis of the test data consisted of determining the average strength, in terms of sustained load, of three replicate specimens of each mixture. The average strength of the three replicates of each additive was compared with the average strength results of the remaining nontraditional additives, the traditional stabilization results, and a series of control specimens that were not stabilized. The results of the experiment indicate increased strength of some nontraditionally stabilized specimens compared with that of both the control series and the traditional stabilization alternatives. Other nontraditional stabilizers did not demonstrate significantly increased strength compared with the control series for the conditions of the experiment. Many of the stabilized specimens were highly moisture susceptible, indicating the potential for poor performance when they are exposed to adverse environmental conditions, whereas a few specimens demonstrated excellent performance when exposed to moisture. Specific product categories are recommended for stabilizing SM soils.
Supplemental Notes: This paper appears in Transportation Research Record No. 1787, Geomaterials 2002.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Santoni, R LTingle, J SWebster, S LPagination: p. 61-70
Publication Date: 2002
Serial: ISBN: 0309077125
Features: Figures
(5)
; Photos
(2)
; References
(8)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Subject Areas: Geotechnology; Highways; I42: Soil Mechanics
Files: TRIS, TRB, ATRI
Created Date: Sep 19 2002 12:00AM
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