Report
Evaluation of alternative anti-icing and deicing compounds using sodium chloride and magnesium chloride as baseline deicers, phase I
Colorado Department of Transportation, DTD Applied Research and Innovation Branch
2009
Abstract
This project aims to evaluate potassium acetate, sodium acetate/formate-blend deicers, and potassium formate as alternative anti-icing and deicing compounds relative to sodium chloride (NaCl), salt-sand mixtures, and magnesium chloride (MgCl2) currently used by CDOT. Based on the literature review, deicers may pose detrimental effects to portland cement concrete infrastructure and asphalt pavement, cause corrosion damage to the transportation infrastructure, or have significant impacts on the environment. We conducted laboratory tests to evaluate the performance of several alternative deicers compared with traditional chloride-based deicers, including: SHRP ice melting, penetration and undercutting tests, differential scanning calorimetry tesst, and tribometer tests. The negative effects of deicers on metals and concrete were investigated both in the laboratory and in the field. It was estimated that even for highquality concrete, the implications of chloride-based deicers on the service life of steel-reinforced concrete might be significant. At the three field locations, water samples were collected periodically and the data showed no immediate impact from chloride-based deicers following application adjacent to waterways. We described a deicer composite index that would allow winter maintenance managers to numerically evaluate deicers based on their agency priorities or local needs and constraints.
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Details
- Title
- Evaluation of alternative anti-icing and deicing compounds using sodium chloride and magnesium chloride as baseline deicers, phase I
- Creators
- Xianming Shi (Author)Laura Fay (Author)Chase Gallaway (Author)Kevin Volkening (Author)Marijean Peterson (Author)Tongyan Pan (Author)Andrew Creighton (Author)Collins Lawlor (Author)Stephanie Mumma (Author)Yajun Liu (Author)Tuan Anh Nguyen (Author)
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Colorado Department of Transportation, DTD Applied Research and Innovation Branch; Denver, CO; Bozeman, MT
- Number of pages
- xxi, 270 pages
- Identifiers
- 99900612705201842
- Language
- English
- Resource Type
- Report