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Title:

EVALUATION OF HEXAHYDRATED MAGNESIUM CHLORIDE PERFORMANCE AS CHEMICAL STABILIZER OF GRANULAR ROAD SURFACES

Accession Number:

00942517

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 performance was evaluated of hexahydrated magnesium chloride (MgCl2-6H2O) as a chemical stabilizer of granular road surfaces. MgCl2-6H2O is a salt with properties that are useful for chemical stabilization of granular road surfaces, such as its capacity to absorb and retain humidity from its surrounding environment, increase water surface tension, and decrease water vapor pressure. Its effect on the physical and mechanical properties of soils was evaluated in laboratory, and its functional performance and durability were evaluated in field trials. Field trials were performed in arid and semiarid regions in the Atacama Desert in northern Chile. Field results showed that roads stabilized with MgCl2-6H2O remain free of dust and corrugations and exhibit a considerable reduction in potholes and surface erosion. The period of effectiveness for MgCl2-6H2O has proven to be more than 2 years, without any type of road maintenance.

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:

Thenoux, G
Vera, S

Pagination:

p. 44-51

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:

Figures (4) ; Photos (4) ; References (9) ; Tables (6)

Geographic Terms:

Atacama Desert; Chile

Subject Areas:

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

Files:

TRIS, TRB, ATRI

Created Date:

May 13 2003 12:00AM