EVALUATION OF HEXAHYDRATED MAGNESIUM CHLORIDE PERFORMANCE AS CHEMICAL STABILIZER OF GRANULAR ROAD SURFACES
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.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309077486
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1819, Volume 2, Eighth International Conference on Low-Volume Roads 2003.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Thenoux, G
- Vera, S
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Conference:
- Eighth International Conference on Low-Volume Roads
- Location: Reno, Nevada
- Date: 2003-6-22 to 2003-6-25
- Publication Date: 2003
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 44-51
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Serial:
- Transportation Research Record
- Issue Number: 1819
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Arid land; Durability; Dust control; Erosion control; Field tests; Laboratory tests; Pavement corrugations; Performance; Potholes; Soil stabilization; Unpaved roads
- Uncontrolled Terms: Granular road surfaces; Hexahydrated magnesium chloride; Semiarid regions
- Geographic Terms: Atacama Desert; Chile
- Subject Areas: Geotechnology; Highways; Maintenance and Preservation; I42: Soil Mechanics;
Filing Info
- Accession Number: 00942517
- Record Type: Publication
- ISBN: 0309077486
- Files: TRIS, TRB, ATRI
- Created Date: May 13 2003 12:00AM