Lime or Chloride Treatment of Granular Base Course Materials, HR-99, 1970

(1970) Lime or Chloride Treatment of Granular Base Course Materials, HR-99, 1970. Transportation, Department of

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Abstract

Results are presented of triaxial testing of three crushed limestones to which either hydrated high-calcium lime, sodium chloride or calcium chloride had been added. Lime was added at rates of 1, 3, 10 and 16 percent, chlorides were added at 0.5 percent rate only. Speciments were compacted using vibratory compaction apparatus and were tested in triaxial compression using lateral pressures from 10 to 100 psi. Triaxial test results indicate that: (1) sodium chloride slightly decreased the angle of internal friction and increased cohesion, (2) calcium chloride slightly increased the angle of internal friction and decreased cohesion, and (3) lime had no appreciable effect on angle of internal friction but increased cohesion, decreased density and increased pore water pressure.

Item Type: Departmental Report
Keywords: Base course (Pavements), Calcium chloride, Calcium hydroxide, Coefficient of internal friction, Cohesion, Compression, Crushed limestone, Density, Granular materials, Pore water pressures, Sodium chloride, Triaxial shear tests, Vibratory compaction
Subjects: Transportation > Pavements
Transportation
Transportation > Materials
Transportation > Roads and highways
Transportation > Research
ID Code: 17234
Deposited By: Iowa DOT Library
Deposited On: 16 Jun 2014 14:23
Last Modified: 19 Jun 2017 13:40
URI: http://publications.iowa.gov/id/eprint/17234