摘要: |
The Missouri Department of Transportation (MoDOT) Maintenance Division employs various tools to reduce the impact of snow and ice on State travelways. Rock salt (sodium chloride) has been used for decades as the primary snow and ice treatment solution, as both a spread solid and sprayed brine solution, to treat the pavement before and during inclement weather. In addition, abrasives such as sand or cinders are sometimes utilized in an attempt to provide a level of skid resistance in situations when temperatures render chloride treatment less effective. Both treatments have been deployed on state routes for many a winter, and are considered the standard. MoDOT would like an evaluation of chemical treatments, including those being chloride-based and agriculture-based, in addition to viable alternatives on the market. The evaluation will address the cost effectiveness of the treatments, the impacts to varied pavement structures and the overall performance of the treatments. |