Guidelines for the Selection of Snow and Ice Control Materials to Mitigate Environmental Impacts (2007) / Chapter Skim
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S U M M A R Y Every year, considerable quantities of snow and ice control products are applied to highways; environmental and regulatory agencies have questioned the environmental effects of these products. Transportation agencies are asked to use "environmentally friendly" or less toxic alternatives wherever possible, but there is no commonly accepted guidance for determining which products meet these criteria.
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2• Available materials, including typical costs, handling concerns, and application issues; • Impacts to the environment and infrastructure related to common use, application, storage and disposal; • Site-specific conditions that affect choices of materials; • Product loading and fate/transport processes; • Current and proposed specifications and regulations for material acceptance; and • Parameters and test methods used as measures of performance and environmental properties. The gathered information was categorized and quantified.
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amount of deterioration is directly related to the quality of concrete. Current evidence suggests that magnesium chemically reacts with the cement paste in a process that reduces concrete strength.
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4to the presence of OMB materials in the product blend. Higher nutrient levels were also present in other material types.
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Wrought aluminum alloy (AA6061-T6) , cast aluminum alloy (AA356.2)
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6Decision Tool When selecting a snow and ice control material, the factors affecting the decision processes can be numerous and complex. The framework provided here is relatively straightforward and addresses the most common and significant items.
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to be applied after the agency has completed the Decision Tool and a snow and ice control material type has been selected for use. Aquatic systems are the primary environmental concern associated with snow and ice control materials.
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