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m <br /> 0 <br /> 0 <br /> a <br /> During the Storm <br /> CD <br /> DEICING nek <br /> Deicing is a reactive operation in which a deicer is applied to <br /> the top of an accumulation of snow, ice, or frost that is already Use cautiously. <br /> bonded to the pavement surface. Deicing generally costs more Many chemicals <br /> than anti-icing in materials, time, equipment, and environ- contain trace <br /> mental damage. metals including <br /> cyanide, arsenic, , <br /> lead, and mercury. <br /> Removing ice that has already bonded to the pavement can <br /> be difficult, and removing it mechanically can damage equip- a <br /> ment and roads. Generally, enough ice must be melted chem- <br /> ically to break the bond between the ice and the pavement, <br /> which requires larger quantities of chemical than anti- icing. <br /> • Use an appropriate amount of salt. Most oversalting can The coal is not to <br /> be prevented by using calibrated, speed - synchronized We everything. <br /> spreaders and good judgment in selecting application Tre goal is to <br /> rates and truck speed. penetrate thro gh <br /> • It is not necessary to melt all the snow or ice on the road the ice and snow <br /> with salt. This is an overuse of materials. Apply just enough and break the st <br /> to loosen the bond between the road and the ice so it can cord so the <br /> be plowed off. pavement car be d <br /> • See the Application Rate Guidelines on pages 17 -18 of this plowed . <br /> handbook. <br /> • Dilution of Solution (see page 2) also applies to deicing. a <br /> o <br /> gi <br /> d d <br /> 2 . <br /> n m <br /> o 0 , <br /> • = <br /> o o. <br /> W <br /> = <br /> = 0 <br /> a <br /> o � <br /> • ' • o <br /> 9 <br /> 1 <br /> o. <br /> 60 <br />