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Transcript of Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.
![Page 1: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/1.jpg)
Tony Myhra - (800)346-7237
www.cryotech.com
NAAC/CMA DVD Available
![Page 2: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/2.jpg)
Deicing Chemicals Available
• Sodium chloride• Magnesium chloride• Calcium chloride• Potassium chloride• Combinations of all of the above• Some with inhibitors packages• Calcium magnesium acetate (CMA)• Potassium acetate (CF7)• Anhydrous sodium acetate (NAAC)
![Page 3: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/3.jpg)
Sodium ChlorideNaCl
• Working temperature - + 20°F (-7°C) • Eutectic temperature - -6°F (-21°C)• Granular - Solid crystal in form• Can be liquefied to a 23% solution• Rate of application – 200-500#/LM• Can be mixed with abrasives• Most common deicer
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Magnesium ChlorideMgCl2
• Working temperature - + 5°F (-15°C) • Eutectic temperature - -28°F (-33°C)• Granular – hydroscopic• Liquid to a 25% - 35% solution • Rate of liquid application – 15-35 GAL/LM• Deice – anti ice - prewet • Aggressive corrosion • Requires periodic agitation weekly or
daily
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Calcium ChlorideCaCl2
• Working temperature - -25°F (-31°C) • Eutectic temperature - -51°F (-45°C)• Pellet, flake, granular - hydroscopic • Liquid to a 25% - 35% solution• Rate of liquid application– 15-25 GAL/LM• Deice – anti-ice – pre wet• Requires daily agitation• Aggressive Corrosion• Hard on leather shoes and gloves
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Potassium ChlorideKCl
• Working temperature - +25°F (-4°C) • Eutectic temperature - +5°F (-15°C)• Solid crystal in form• Rate slightly higher than NaCl• Deicer– mostly commercial use
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Calcium Magnesium Acetate (CMA)
• Working temperature - + 20°F (-7°C) • Eutectic temperature - -18°F (-28°C)• Pelleted - Liquid to a 25% - 30% sol • Rate of liquid application – anti-icing-15-
25 GAL/LM –Deice – 25-60 GAL/LM (.5-1 gallon/1000 Ft²)• Rate dry – 200-400# LANE MILE
(10-25#/1000 FT²)• Deice – Anti-ice – Pre wet sensitive areas• Agitation of liquid prior to loading • Contains no chlorides• Safest deicer for new concrete
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CMA 40
• Working temperature - + 20°F (-7°C) • Eutectic temperature - -8°F (-22°C)• 40% CMA – 60% Sodium Chloride• Spread – Same as rock salt - 200# - 500#
LANE MILE • Used to prevent spalling • Used only where there is no steel in
reinforced concrete.• Lower cost deicer.
![Page 9: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/9.jpg)
Anhydrous Sodium Acetate (NAAC)
• Working temperature - + 0°F (-18°C) • Eutectic temperature - -8°F (-22°C)• Pelleted only • Spread – 200# - 500# LANE MILE • 7-20# per 1000 Ft² • Deicer – contains no chloride • Used in salt sensitive areas – airport
runways, bridges, parking garages, doorways, sidewalks, etc.
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Potassium Acetate Based (KAC) CF7
• Working temperature - -26°F (-32°C) • Eutectic temperature - -76°F (-60°C)• Liquid – 50% solution • Rate of liquid application – 15-3O GAL/LM• .5 to 1 gallon per 1000 Ft². • Deice – anti-ice – pre wet • No agitation – indefinite storage life• Contains no chloride• Ideal for Fixed Anti-icing Spray
Technology (FAST)
![Page 11: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/11.jpg)
Hidden Costs of Deicing
• Cost of salt
– Purchase price– Storage– Labor– Equipment
• Corrosion to structures and vehicles
• Cost of sand
– Purchase price– Storage– Labor – Equipment
• Clean up• Lawsuits
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Other Hidden Costs
• Cost to public if we don’t deice.
– Accidents– Delays– Lost business– Lost production
• Environmental concerns
– Water quality• Chlorides• Damage to
vegetation and soils
– Air quality• PM10• Sand siltration
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Federal Highway Administration
Search for chloride salt alternatives
• Environment
• Performance
• Low Corrosion
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CMA, NAAC & CF7
The Problem Solvers
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Acetate Ion
• Chemical formula…CH3COO-
• Low corrosion
• Low toxicity
• Biodegradable
• Long lasting effect
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Raw Material for Acetates
Acetic Acid
– Acetate ion
– Found in vinegar
– pH changed when reacted base materials
– Biodegradable
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Calcium Magnesium Acetate
Dolomitic lime + acetic acid
yields
Ca3Mg7(C2H3O2)20
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Calcium Magnesium Acetate
• Since 1979
• Environmentally safe
• Low corrosion
• Safe for concrete
• Effective performance
Residual effect Stores well Biodegradable Low toxicity Costs more to make!
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Cryotech NAACSolid Runway Deicer
97% Anhydrous Sodium Acetate+ <1% corrosion inhibitors
CH3COO- + Na+
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97% Anhydrous Sodium Acetate
• Since 1997
• Environmentally safe
• Low corrosion
• Effective performance
• Approved for airports
Residual effect Stores well Biodegradable Low toxicity Costs more to make!
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CF7 Liquid DeicerPotassium Acetate-Based
Acetic Acid + Potassium Hydroxide
yields Potassium Acetate + Water
(plus proprietary corrosion Inhibitors)
HC2H3O2 + KOH => KC2H3O2 + H2O
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Problem Solver
• Environment
• Anti-icing and Deicing
• New bridges, Chloride Contaminated bridges
• Sidewalks, Doorways & Parking Structures
• Blending/Inhibitor
• Fixed anti-icing spray technology
(F.A.S.T.)
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Understanding Deicers
Must know how to use deicers
Effectively and how they work.
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What Is Anti-Icing?
Anti-icing is a snow and ice control measure to prevent a strong bond between frozen precipitation or frost and a pavement surface by timely application of a chemical freezing point depressant. Proactive approach.
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Anti-icing Expectations
• Snow more easily removed
• Ice may not form or remain slushy
• Lower chemical usage
• Shoveling, plowing, brooming required
• Lower equipment maintenance costs
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What Is De-Icing?
De-icing is an measure where a deicer is applied to the top of an accumulation of snow, ice or frost that is already bonded or formed to the pavement surface. Reactive approach.
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Equipment
Using the right equipment
For effective snow & ice control
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New Bridges, Parking Garages, Elevated Walkways
CMA/NAAC/CF7 – “The problem solver”
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FHWA - CMA Study Conclusions
• Concrete w/o rebar
– Little weight loss or spalling• Concrete with rebar
– No damage
– 4 Year study• Non-metallics
– Little affect
CMA – “The problem solver”
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Costs of Using Chloride Based Deicers
• Cost of new construction - $20,000-$24,000/Space
• Cost to repair chloride damage $3000-$4000/space
• Cost of lost revenue while out of service?• Cost of inconvenience to customers.• Cost of demolition• Cost of liability and insurability• Can’t afford chloride deicers damage from
$50/space of salt over a 20 year period
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CMA Effect on Chloride Contaminated Concrete
• The Danish corrosion centre, 1990
“CMA…seems to delay the onset of corrosion.”
• BP research centre, 1989
“Changing…to acetate deicer decreases the corrosion rate of steel…by more than a factor of ten.”
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Corrosion Retardation
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Effect of Deicers on ConcreteSpalling of Non Air-Entrained Structural Concrete
0.00 1.00 2.00 3.00 4.00 5.00 6.00
Water
CMA
Ethylene Glycol
Urea
Calcium Chloride
Sodium Chloride
Concrete Surface Weight Loss (mg/mm^2)
Dept of Transport, UK, 1993
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Concrete Spalling
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Acetate Deicers Summary of Options
• Direct application
• With chloride deicers
• With sand
• Liquid deicer
• Liquid anti-icer
• Liquid pre wetter
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Cargill SafeLane™ Polymer Overlay – Product Profile
Existing substrate
SafeLane Surface
3/8” Thickness4 lbs./ft2
SafeLane can be installed on concrete, asphalt, FRP, steel or woodConcrete – 12.5 lbs/sf per inch; Asphalt – 14 lbs/sf per inch
37
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Deicing Chemicals Review
• Sodium chloride• Magnesium chloride• Calcium chloride• Potassium chloride• Combinations of all of the above• Some with inhibitors packages• Calcium magnesium acetate (CMA)• Potassium acetate (CF7)• Anhydrous sodium acetate (NAAC)
![Page 38: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/38.jpg)
Calcium Magnesium Acetate (CMA)
• Working temperature - + 20°F (-7°C) • Eutectic temperature - -18°F (-28°C)• Pelleted - Liquid to a 25% - 30% sol • Rate of liquid application – anti-icing-15-
25 GAL/LM – Deice – 25-60 GAL/LM• Rate dry – 200-400# Lane Mile
(10-25#/1000 Ft²)• Deice – Anti-ice – Pre wet sensitive areas• Agitation of liquid prior to loading liquid.• Contains no chlorides• Safest deicer for new concrete
![Page 39: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/39.jpg)
CMA 40
• Working temperature - + 20°F (-7°C) • Eutectic temperature - -8°F (-22°C)• 40% CMA – 60% Sodium Chloride• Spread – 200#-500# LANE MILE (10-
25#/1000 Ft²)• Used to prevent spalling • Used only where there is no steel in
reinforced concrete.• Lower cost deicer.
![Page 40: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/40.jpg)
Anhydrous Sodium Acetate (NAAC)
• Working temperature - + 0°F (-18°C) • Eutectic temperature - -8°F (-22°C)• Pelleted only • Spread – 200#-500#/Lane Mile
(7-20#/1000 Ft²)• Deicer – contains no chloride • Used in salt sensitive areas – airport
runways, bridges, parking garages, doorways, sidewalks, etc.
![Page 41: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/41.jpg)
Potassium Acetate Based (KAC) CF7
• Working temperature - -26°F (-32°C) • Eutectic temperature - -76°F (-60°C)• Liquid – 50% solution • Rate of liquid application – 15-3O GAL/LM .5 – 1 gallon per 1000 Ft²• Deice – anti-ice – pre wet • No agitation – indefinite storage life• Contains no chloride• Ideal for Fixed Anti-icing Spray
Technology (FAST)
![Page 42: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/42.jpg)
Potassium Acetate Based (KAC) CF7
• Working temperature - -26°F (-32°C) • Eutectic temperature - -76°F (-60°C)• Liquid – 50% solution • Rate of liquid application – 15-3O GAL/LM .5 – 1 gallon per 1000 Ft²• Deice – anti-ice – pre wet • No agitation – indefinite storage life• Contains no chloride• Ideal for Fixed Anti-icing Spray
Technology (FAST)
![Page 43: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/43.jpg)
Acetate DeicersSummary of Options
• Direct application
• With chloride deicers
• With sand
• Liquid deicer
• Liquid anti-icer
• Liquid pre wetter
![Page 44: Tony Myhra - (800)346-7237 NAAC/CMA DVD Available.](https://reader034.fdocuments.net/reader034/viewer/2022052304/56649cdc5503460f949a7496/html5/thumbnails/44.jpg)
Options for Parking Garage Longevity
• Good Design• Good Construction Materials• Good Drainage• Good Sealers/Membranes -
Waterproofing• Continuous Maintenance Practices • Avoid Chloride Deicers• Use Non-Chloride Deicers like NAAC, CMA
& CF7
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Questions?
Tony Myhra - (800)346-7237
www.cryotech.com
NAAC/CMA DVD Available