Line 30: | Line 30: | ||
====Deicing/Anti-Icing Information==== | ====Deicing/Anti-Icing Information==== | ||
− | ====Anti-icing | + | ====Anti-icing==== |
− | Anti-icing is the most cost-effective and environmentally safe practice in winter maintenance. This is the direction to pursue. | + | {{alert|[[File:Fish logo.png|50px|alt=dollar symbol]] '''Anti-icing is the most cost-effective and environmentally safe practice in winter maintenance. This is the direction to pursue.'''|alert-info}} |
+ | |||
+ | Anti-icing is a proactive approach. It should be first in a series of strategies for each winter storm. Applying a small and strategic amount of liquid on the pavement before a storm will prevent snow and ice from bonding to the pavement. This buys time for the clean-up efforts. | ||
+ | |||
+ | Anti-icing is like frying eggs: grease the pan and the eggs come out easily with no mess to clean up. Like greasing the frying pan, the purpose of anti-icing is to keep snow from sticking to the pavement. Anti-icing provides safer pavement during the event and faster clean up after the event. | ||
+ | |||
+ | Anti-icing requires about ¼ the material and 1/10 the overall cost of deicing. It can increase safety at the lowest cost, and is effective and cost-efficient when correctly used and approached with realistic expectations. | ||
+ | |||
+ | Anti-icing prevents formation of frost. It can be effective for up to several days depending on the weather conditions. | ||
− | Anti-icing is | + | {{alert|[[File:Dollar logo.jpg|25px|alt=dollar symbol]] ''' Anti-icing is quick. It is possible to treat a parking lot in a matter of minutes. It is an excellent strategy for saving time. Charging by the hour is not a desired practice when changing to anti-icing.'''|alert-info}} |
+ | |||
+ | ====Get started in anti-icing==== | ||
+ | |||
+ | The basic equipment needed includes: pavement temperature sensor, storage tank, spray truck system, transfer pump, hoses, and fittings. | ||
+ | |||
+ | What to do | ||
+ | *Calibrate. | ||
+ | *Use application rates suggested in the Rate section of this manual. | ||
+ | *Apply with stream nozzles to maintain dry areas between sprayed areas to reduce slipperiness. Stream nozzles work the best for anti-icing. | ||
+ | *If using fan nozzles apply extra light. This makes a dry surface wet and users will have less friction until it dries. | ||
+ | *Try anti-icing in a low traffic area to build confidence about its properties. | ||
+ | *Read some of anti-icing guidelines in the reference section of this manual. | ||
+ | |||
+ | Tip: Stream nozzles prevent slippery conditions better than fan spray. | ||
+ | |||
+ | Test the application rates and spray pattern to become confident in preventing the bonding of ice without creating a slimy or slippery situation. | ||
+ | |||
+ | Tip: Too little CaCl<sub>2</sub> or MgCl<sub>2</sub> is safer than too much. | ||
+ | What not to do | ||
+ | *Do not re-apply if there is still residue. It can remain many days after application. | ||
+ | *Do not apply MgCl2 or CaCl2 to a warm surface (above 35º F pavement temperature). It can become “greasy” as it pulls moisture to the pavement. These liquids do not always become greasy, but there is a higher potential in warmer temperatures and higher humidity. | ||
+ | *Do not over apply MgCl2 or CaCl2. | ||
+ | *Do not apply liquids before a rain storm. They will wash away. |
.
Anti-icing is a proactive approach. It should be first in a series of strategies for each winter storm. Applying a small and strategic amount of liquid on the pavement before a storm will prevent snow and ice from bonding to the pavement. This buys time for the clean-up efforts.
Anti-icing is like frying eggs: grease the pan and the eggs come out easily with no mess to clean up. Like greasing the frying pan, the purpose of anti-icing is to keep snow from sticking to the pavement. Anti-icing provides safer pavement during the event and faster clean up after the event.
Anti-icing requires about ¼ the material and 1/10 the overall cost of deicing. It can increase safety at the lowest cost, and is effective and cost-efficient when correctly used and approached with realistic expectations.
Anti-icing prevents formation of frost. It can be effective for up to several days depending on the weather conditions.
The basic equipment needed includes: pavement temperature sensor, storage tank, spray truck system, transfer pump, hoses, and fittings.
What to do
Tip: Stream nozzles prevent slippery conditions better than fan spray.
Test the application rates and spray pattern to become confident in preventing the bonding of ice without creating a slimy or slippery situation.
Tip: Too little CaCl2 or MgCl2 is safer than too much. What not to do