Accession Number:

ADA172600

Title:

Stabilization of Fine-Grained Soil for Road and Airfield Construction.

Descriptive Note:

Special rept.,

Corporate Author:

COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s):

Report Date:

1986-07-01

Pagination or Media Count:

43.0

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 lbcubic foot at a 29 moisture content. The stabilizers evaluated were cement, cement with additives calcium chloride, hydrogen peroxide, sodium sulfate, and lime, lime, limefly ash, asphalt emulsion, tetrasodium polyphosphate, and calcium acrylate. Unconfined compressive strengths obtained were 39 lbsquare inch with 20 cement, 64 lbsquare inch with 20 cement and 2 calcium chloride, 51 lbsquare inch with asphalt emulsion, and 348 lbsquare inch with calcium chloride. Lime and limefly ash proved to be ineffective for this soil. Although tetrasodium polyphosphate did not improve the soils strength it did reduce frost susceptibility and permeability. Keywords Chemical stabilizers, Organic soils, Soil stabilization.

Subject Categories:

  • Soil Mechanics
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE