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Low-Cost Self-Cleaning Low-Cost Self-Cleaning Concrete and Stone SurfacesConcrete and Stone Surfaces
K. Cyrus RobinsonK. Cyrus Robinson
armONxarmONx
1 June 20091 June 2009
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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IntroductionIntroduction
• Concrete (or stone) is often Concrete (or stone) is often used aesthetically, but is:used aesthetically, but is:– PorousPorous
• Liquids penetrate and persistLiquids penetrate and persist– Mold, fungiMold, fungi
• Likely to stain deeply Likely to stain deeply
– Difficult to cleanDifficult to clean
• Dirty Surfaces are UglyDirty Surfaces are Ugly
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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IntroductionIntroduction
• Can we keep it clean?
• Concrete is everywhere– and easy to stain…
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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IntroductionIntroduction
• Stains (oils, foods, Stains (oils, foods, etc.) may spoil etc.) may spoil clean pavers’ clean pavers’ appearanceappearance
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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IntroductionIntroduction
• Roof tiles often become Roof tiles often become infested with moldinfested with mold
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IntroductionIntroduction
• Some walls have had Some walls have had permanent ink dashed on thempermanent ink dashed on them
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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IntroductionIntroduction• Good appearance requires care to Good appearance requires care to
maintain maintain – Pressure washing poured concretePressure washing poured concrete
• Does not remove deep stainsDoes not remove deep stains
– Replacing pavers/stoneReplacing pavers/stone• Takes some skillTakes some skill• Must be done each time these are stained Must be done each time these are stained • Must keep extra pavers/stone, perhaps for yearsMust keep extra pavers/stone, perhaps for years
– Pressure washing roof tiles (mold, fungi)Pressure washing roof tiles (mold, fungi)• Ladders; risk - costLadders; risk - cost
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IntroductionIntroduction
1.1. Firstly, could we modify the porous Firstly, could we modify the porous surface of these materials to make it surface of these materials to make it less permeable?less permeable?
2.2. Secondly, could it “take care of itself,” Secondly, could it “take care of itself,” help help keepkeep itselfitself cleanclean to minimize to minimize maintenance?maintenance?
– Could the surface spontaneously remove Could the surface spontaneously remove new soils, or “new soils, or “self-cleanself-clean?”?”
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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Introduction: Use a Sealer?Introduction: Use a Sealer?• Many sealers available:Many sealers available:
MARKETING TABLE HERE
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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Introduction: Use a Sealer?Introduction: Use a Sealer?• Sealer characteristics:Sealer characteristics:
MARKETING TABLE HERE
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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Introduction: Use a sealer?Introduction: Use a sealer?
• Note, Note, no existing sealers are “Self-no existing sealers are “Self-Cleaning”Cleaning”
• Is this dual “Self-Cleaning”/Sealing Is this dual “Self-Cleaning”/Sealing action obtainable?action obtainable?– At a reasonable cost?At a reasonable cost?– With a single, durable application? With a single, durable application?
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SolutionSolution• Our treatmentOur treatment makes these materials makes these materials
persistently persistently self-cleaningself-cleaning, with the , with the natural action of the elementsnatural action of the elements– Low cost (cents/sqft)Low cost (cents/sqft)– DurableDurable– Not a film or membrane - cannot bubble, Not a film or membrane - cannot bubble,
crack or delaminatecrack or delaminate– No significant change in appearance, No significant change in appearance,
nor slippery when wetnor slippery when wet
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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Data: Data: Test MethodTest Method
1.1. Treat concrete pavers, poured concrete Treat concrete pavers, poured concrete and stone of variable quality & color and stone of variable quality & color
2.2. Drip same volume of Drip same volume of usedused engine oilengine oil onto treated and untreated samplesonto treated and untreated samples
• According to According to EPAEPA, oil is: slow to degrade, , oil is: slow to degrade, insoluble, hazardous, contains heavy metalsinsoluble, hazardous, contains heavy metals
3.3. Document stain removal effectiveness Document stain removal effectiveness and cost and cost
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData• 6” x 6” 6” x 6” PaverPaver divided divided
into four quadrantsinto four quadrants
One coatTwo coats
No protection
Oil does not penetrate;it spreads out
Oil drops
Clear in two weeks’ time
time0
time1 time2 time3
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DataData• More More PaversPavers (pictures taken before oil faded (pictures taken before oil faded
completely) completely)
Depending on the material, two coats may work faster than one
Oilspreads
No protection
No protection
One coatTwo coats
One coatTwo coats
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData• Stone - TravertineStone - Travertine
Treated 3 areas Four Oil spots Clear, less than 10 days
Stained
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DataData
• Sand between pavers or stoneSand between pavers or stone– Stabilized (cemented)Stabilized (cemented)
•Rain does not dislodgeRain does not dislodge
– Weed germination impededWeed germination impeded•Less weed killers …Less weed killers …
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData• Poured ConcretePoured Concrete
Untreated Treated (one coat)
Two weeks elapsed
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData• Fading of Permanent Marker inkFading of Permanent Marker ink
– ““Accelerated weathering,” tough, opaque Accelerated weathering,” tough, opaque pigments erode & flake off fasterpigments erode & flake off faster
Untreated; little change
Treated; about 10% faded
Twenty Day Exposure
Day 0 Day 20
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData• Quick drying surface Quick drying surface
– Limits mold, fungiLimits mold, fungi
Treated
Untreated
Dry
Still Wet
10 minutesWet Surface
1 June 20091 June 2009 armONx Proprietary -- Use PursuantarmONx Proprietary -- Use Pursuant to Company Instructions to Company Instructions
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DataData
• Roof Tile application Roof Tile application – Dual actionDual action discourages fungal discourages fungal
growth:growth:•Moisture quickly driesMoisture quickly dries
•Surface actively breaks down organicsSurface actively breaks down organics
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DataData
• Lower Quality materials perform like Lower Quality materials perform like Higher QualityHigher Quality– Subsurface durably modified at the Subsurface durably modified at the
molecular levelmolecular level
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ConclusionConclusionThis Patent Pending Treatment:This Patent Pending Treatment:
• Is easy to useIs easy to use
• Does not change the appearance of the Does not change the appearance of the surface or make it slippery when wetsurface or make it slippery when wet
• Makes the surface durably impermeableMakes the surface durably impermeable– impedes stain or moisture penetration, as impedes stain or moisture penetration, as
well as efflorescencewell as efflorescence– permits vapor transmission permits vapor transmission
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ConclusionConclusionThis Patent Pending Treatment:This Patent Pending Treatment:
• Is not a film or membraneIs not a film or membrane– cannot delaminate, crack or wear off cannot delaminate, crack or wear off
independently of the surfaceindependently of the surface
• Gently wGently works on driveways and orks on driveways and parking lots (engine oil), inks parking lots (engine oil), inks (graffiti), etc.(graffiti), etc.
• Is effective on roof tiles, Is effective on roof tiles, discouraging fungal growth discouraging fungal growth
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ConclusionConclusionThis Patent Pending Treatment:This Patent Pending Treatment:
• Stabilizes (cements) the sand Stabilizes (cements) the sand between pavers or stone and between pavers or stone and inhibits weeds from germinating inhibits weeds from germinating
• Contains zero VOC’s Contains zero VOC’s
• Uses safer ingredientsUses safer ingredients
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ConclusionConclusion
• Questions:Questions:– Contact: Contact:
•K Cyrus RobinsonK Cyrus Robinson
•[email protected]@armONx.com
•610.704.8795610.704.8795