00394973

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http://onlinepubs.trb.org...s/trr/1984/962/962-012.pdf

https://scholar.google.co...+Hsu&publication_year=1984

The search for an effective substitute for the deicing agent sodium chloride has led to the development of calcium magnesium acetate (CMA). However, CMA is not commercially available. A project for the production of CMA using resources in Maine was carried out at the Maine Department of Transportation. After the product was made, other physical and chemical tests were also performed. The results indicated that CMA can be made in Maine from an apparent abundant source of high magnesium limestone and acetic acid (cider vinegar). A 10 percent solution of acetic acid with 10 min of agitation with the magnesium limestone coarse aggregate provides the best production of CMA for this grade. A commercial production of CMA should consider the constant reflux method with constant monitoring of the pH. Evaporation of the solution by solar energy is not effective because of the large amount of rainfall in Maine. Bituminous concrete batch plants have waste heat, which might be able to aid in this evaporation need. The field trial of CMA as a deicing agent demonstrated both advantages and disadvantages. A major concern is its dustiness. Outdoor uncovered storage of CMA is not practical. The corrosion effect of CMA solution toward metal or concrete needs further study.

Publication of this paper sponsored by Committee on Winter Maintenance. 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.

01419847

pp 77-82

1984

Transportation Research Record

0309037182

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Figures (2) ; References (8) ; Tables (2)

Acetic acid; Calcium magnesium acetate; Corrosion; Deicers (Equipment); Dust; Limestone dust; Mixing plants; Production; Testing

Deicers

Maine

Geotechnology; Highways; Maintenance and Preservation; Materials; Vehicles and Equipment; I40: Soils and Rocks

TRIS, TRB

Jan 31 1986 12:00AM

• APPLICATION: DEEP GROOVING--A METHOD FOR IMPREGNATING CONCRETE BRIDGE DECKS (ABRIDGMENT)
• BRIDGE HEATING USING GROUND-SOURCE HEAT PIPES
• CATHODIC PROTECTION OF BRIDGE SUBSTRUCTURES: BURLINGTON BAY SKYWAY TEST SITE, DESIGN AND CONSTRUCTION PHASES
• CATHODIC PROTECTION OF BRIDGE SUBSTRUCTURES: BURLINGTON BAY SKYWAY TEST SITE, INITIAL PERFORMANCE OF SYSTEMS 1 TO 4
• CATHODIC PROTECTION OF REINFORCED CONCRETE BY USING METALLIZED COATINGS AND CONDUCTIVE PAINTS
• CORROSION OF GALVANIZED STEEL FLOOR SLAB REINFORCEMENT
• DETERMINATION OF IN-PLACE TIMBER PILING STRENGTH
• DEVELOPMENT: DEEP GROOVING--A METHOD FOR IMPREGNATING CONCRETE BRIDGE DECKS (ABRIDGMENT)
• FIELD EVALUATION OF OIL- AND GAS-PRODUCED BRINES AS HIGHWAY DEICING AGENTS (ABRIDGMENT)
• FIELD PERFORMANCE OF EXPERIMENTAL BRIDGE DECK MEMBRANE SYSTEMS IN VERMONT
• KANSAS' EXPERIENCE WITH INTERLAYER MEMBRANES ON SALT-CONTAMINATED BRIDGE DECKS (ABRIDGMENT)
• LEVEL-OF-SERVICE SYSTEM FOR BRIDGE EVALUATION
• MANAGEMENT OF BRIDGE MAINTENANCE, REPAIR, AND REHABILITATION--A CITY PERSPECTIVE