00611904

Component

http://onlinepubs.trb.org...trr/1991/1295/1295-011.pdf

https://scholar.google.co...nzle&publication_year=1991

Low-volume secondary roads requiring rehabilitation can be restored using the full-depth reclamation process with calcium chloride to achieve increased bearing capacity, minimize frost heave damage, and reduce highway maintenance expense. Full-depth reclamation uses a pulverizer to grind the asphalt surface, blending it with the gravel base to a depth of 8 in. The road is then reshaped and approximately three-quarters of the required calcium chloride is added. Additional pulverization is performed to ensure a uniform mixture of road material and calcium chloride. Following this, the road is graded, rolled, and final application of calcium chloride is made. Testing of full-depth reclamation with and without calcium chloride addition indicates that use of the reclamation process achieves a dense, stable, granular layer, improving overall pavement strength compared to original pavement condition. The addition of calcium chloride enhances this stabilization of the granular layer 10% beyond strength measured in the untreated reclaimed road section. A 50 to 60% reduction in frost heave can be expected in reclaimed sections of road using calcium chloride.

This paper appears in Transportation Research Record No. 1295, Soil Stabilization 1991. 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

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p. 87-94

1991

Transportation Research Record

030905074X

Figures (4) ; References (7) ; Tables (7)

Bearing capacity; Calcium chloride; Driver rehabilitation; Frost heaving; Full-depth reclamation; Granular bases; Improvements; Low volume roads; Maintenance practices; Reduction (Chemistry); Secondary roads; Soil stabilization

Rehabilitation; Stabilization

Geotechnology; Highways; Maintenance and Preservation; I42: Soil Mechanics

TRIS, TRB, ATRI

Aug 31 1991 12:00AM

• CALIFORNIA BEARING RATIO IMPROVEMENT OF REMOLDED SOILS BY THE ADDITION OF POLYPROPYLENE FIBER REINFORCEMENT
• DETERMINING CEMENT CONTENT OF SOIL-CEMENT BY HEAT OF NEUTRALIZATION
• EFFECT OF LIME ON VOLUME CHANGE AND COMPRESSIBILITY OF EXPANSIVE CLAYS
• EPOXY-RESIN-BASED CHEMICAL STABILIZATION OF A FINE, POORLY GRADED SOIL SYSTEM
• IMPROVED CHARACTERISTICS IN SULFATE SOILS TREATED WITH BARIUM COMPOUNDS BEFORE LIME STABILIZATION
• MATERIAL CHARACTERIZATION AND INHERENT VARIATION ANALYSIS OF SOIL-CEMENT FIELD CORES
• NONDESTRUCTIVE TESTS FOR DETERMINING COMPRESSIVE STRENGTH OF CEMENT-STABILIZED SOILS
• OVERCONSOLIDATED BEHAVIOR OF PHOSPHORIC ACID AND LIME-STABILIZED KAOLIN CLAY
• PHYSICAL PROPERTY CHANGES IN A LIME-TREATED EXPANSIVE CLAY CAUSED BY LEACHING
• PROPERTIES OF MUNICIPAL SOLID WASTE ASH-CEMENT COMPOSITE
• STRENGTH AND STRESS-STRAIN CHARACTERISTICS OF A LIME-TREATED COHESIVE SOIL