This paper presents findings from a side-by-side field comparison of the effectiveness of sodium chloride-based road salt brine (RSB) and magnesium chloride-based Meltdown Apex™ liquid (MDA) as anti-icing chemicals for snow and ice control associated with winter roadway maintenance. The study was sponsored by the Texas Department of Transportation (TxDOT) to support operational decision-making for chemical treatment selections based on the perspective of pavement conditions observed by “the maintenance worker in the truck.” The field test site was a portion of rural service road near Canyon, Texas, located at latitude 35° N. The site was divided into eight 305 m sections that were treated with RSB at 141 l/lane km, MDA at 47 l/lane km, or left untreated for control. Two storm events at the test site during Winter 2014–2015 met pre-established research criteria for snow accumulation and other variables. Test sections were subjected to cycles of plowing, slushing, and additional anti-icing liquid treatment. Digital video data and still image (photo) data were collected throughout the storm events to allow estimation of visible pavement, and vehicle-based decelerometer tests were used to measure pavement friction. Overall results from multiple performance measures indicated comparable effectiveness of RSB and MDA at the applied rates. It was also noted that application of MDA on dry pavement prior to the storm events significantly reduced the pavement friction.

本文通过并排现场比较得出了基于氯化钠的道路盐水（RSB）和基于氯化镁的Meltdown Apex™液体（MDA）作为防冰雪相关防冰化学品的功效的比较结果。与冬季巷道维护。这项研究是由德克萨斯州交通运输部（TxDOT）赞助的，旨在根据“卡车维修工”观察到的路面状况，支持化学处理选择的运营决策。现场测试站点是位于德克萨斯州峡谷附近，位于北纬35°的一条乡村服务道路的一部分。该站点分为8个305 m部分，分别用141 l / lane km的RSB，47 l / lane的MDA进行了处理。公里或未经控制的情况。2014-2015年冬季，测试地点发生了两次暴风雪事件，这些雪事件符合针对积雪和其他变量的既定研究标准。对试验切片进行翻耕，融泥和其他防冰液处理。在整个暴风雨事件中收集了数字视频数据和静止图像（照片）数据，以便估算可见的路面，并且基于车辆的减速器测试用于测量路面摩擦。多项绩效指标的总体结果表明，在适用税率下，RSB和MDA的有效性相当。还应注意的是，在暴风雨发生前在干路面上使用MDA可以显着降低路面摩擦。以及额外的防冰液处理。在整个暴风雨事件中收集了数字视频数据和静止图像（照片）数据，以便估算可见的路面，并且基于车辆的减速器测试用于测量路面摩擦。多项绩效指标的总体结果表明，在适用税率下，RSB和MDA的有效性相当。还应注意的是，在暴风雨之前，在干路面上使用MDA可以显着减少路面摩擦。以及额外的防冰液处理。在整个暴风雨事件中收集了数字视频数据和静止图像（照片）数据，以便估算可见的路面，并且基于车辆的减速器测试用于测量路面摩擦。多项绩效指标的总体结果表明，在适用税率下，RSB和MDA的有效性相当。还应注意的是，在暴风雨之前，在干路面上使用MDA可以显着减少路面摩擦。