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Title:

STABILIZING UNPAVED ROADS WITH CALCIUM CHLORIDE

Accession Number:

00942518

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States
Order URL: http://www.trb.org/Main/Public/Blurbs/152846.aspx

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Order URL: http://worldcat.org/isbn/0309077486

Abstract:

The U.S. Department of Agriculture Forest Service has stabilized unpaved road surfacing materials with relatively high concentrations of calcium chloride salt. The percentage of calcium chloride is higher than that traditionally used for dust abatement or aggregate base stabilization. Up to 2% pure salt by weight of aggregate was mixed into the top 2 in. (50 mm) of both aggregate and native road surfaces. The results were monitored for 2 to 4 years. The stabilized road surfaces resisted raveling and washboarding for several seasons and significantly reduced road blading and aggregate loss. As a result, calcium chloride stabilization may be a cost-effective treatment for roads with daily traffic volumes less than 200. Other benefits include reduced surface erosion and sedimentation; improved safety from reduced dust, raveling, and washboarding; and less frost penetration. Encouraged by these results, the Forest Service is conducting additional evaluations to determine the cost-effectiveness of surface stabilization with both magnesium chloride and calcium chloride in different environments and with different aggregate materials.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1819, Volume 2, Eighth International Conference on Low-Volume Roads 2003.

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Monlux, S

Pagination:

p. 52-56

Publication Date:

2003

Serial:

Transportation Research Record

Issue Number: 1819
Publisher: Transportation Research Board
ISSN: 0361-1981

Conference:

Eighth International Conference on Low-Volume Roads

Location: Reno, Nevada
Date: 2003-6-22 to 2003-6-25
Sponsors: Federal Highway Administration; US Forest Service; U.S. Army Corps of Engineers; US Bureau of Indian Affairs; University of Nevada, Reno; Costa Rica University; Nevada Department of Transportation; and Transportation Research Board.

ISBN:

0309077486

Features:

Tables (3)

Identifier Terms:

U.S. Forest Service

Subject Areas:

Geotechnology; Highways; Maintenance and Preservation; Materials; I33: Other Materials used in Pavement Layers; I42: Soil Mechanics

Files:

TRIS, TRB, ATRI

Created Date:

May 13 2003 12:00AM