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Title: Stabilization of fine-grained soil for road and airfield construction
Authors: Danyluk, Lawrence S.
Keywords: Asphalt emulsion
Asphalt emulsion mixtures
Organic soils
Soil stabilization
Chemical stabilizers
Stabilization of fine-grained soil for
road and airfield construction
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 86-21.
Description: Special Report
Abstract: A laboratory study was conducted to determine the feasibility of stabilizing an organic silt for use in sub-base or base courses for all-weather, low-volume roads and airfields in Alaska. The soil used in this study has an organic content of 12% and a modified Proctor value of 79.1 lb/ft^3 at a 29% moisture content. The stabilizers evaluated were: Cement, cement with additives (calcium chloride, hydrogen peroxide, sodium sulfate, and lime), lime, lime/fly ash, asphalt emulsion, tetrasodium polyphosphate, and calcium acrylate. Unconfined compressive strengths obtained were: 39 lb/in.^2 with 20% cement, 64 lb/in.^2 with 20% cement and 2% calcium chloride, 51 lb/in.^2 with asphalt emulsion, and 348 lb/in.^2 with calcium chloride. Lime and lime/fly ash proved to be ineffective for this soil. Although tetrasodium polyphosphate did not improve the soil's strength it did reduce frost susceptibility and permeability.
Alaska. Dept. of Transportation and Public Facilities.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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