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04-16-2009, 10:40 PM
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#1
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Junior Member
Join Date: Apr 2009
Location: Colorado
Posts: 1
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? epoxy agg or decorative concrete over existing concrete - seeking advice
I live in Morrison, Colorado. Have existing ~ 600 sq ft concrete patio. Considering resurfacing - either exposed porous epoxy aggregate or a stamped concrete. Hoping not to remove existing concrete. Tough environment and want tough, minimal maintenance finish. Temperature ranges from -10 to very sunny 100 degrees.
Advice? Is an aggregate gonna stand up? Is stamped decorative concrete clearly tougher and lower maintenance?
thanks in advance. Mark |
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04-18-2009, 06:09 PM
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#2
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Senior Member
Join Date: Mar 2006
Location: West Kentucky
Posts: 2,999
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Welcome Mark:
I would want an epoxy binder used and then add at least 2" of concrete of either kind. Either one will have a tendency to hide any cracks that may appear.
Glenn
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04-20-2009, 05:08 AM
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#3
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Member
Join Date: May 2008
Location: atlanta, ga
Posts: 88
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i don't know of any epoxy that's suitable for exterior use,,, resurfacing w/polymer-modified cement conc is our main work & we never use epoxies of any type outside.
colorado's not a particularly harsh environment for conc,,, if it were, there wouldn't be so much of it used for harsh, try 40degree swings in 12hrs when the conc'll be poppin' back & forth in size,,, knowing the trade, i'd opt for resurfacing OR acid-stain & seal,,,
typically you'll use 3,000 to 3,500 psi conc while the avg o'lay mtl's 5,000+,,, aggregate's stone so that's not an issue,,, stamp'd dec conc isn't 'clearly tougher OR lower maint',,, then again, its your home !
good luck !
ps - glenn suggests an epoxy-bond'd conc overlay,,, that is an acceptable method however any crks in the original conc will usually reflect in the upper course.
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05-31-2009, 08:31 PM
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#4
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Junior Member
Join Date: May 2009
Location: georgia
Posts: 13
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Decorative concrete
Can be made into a design you so chose. I am not sure about the epoxy. If the epoxy cracks afterward it may not show up as much as a crack in the decorative. Unless your installer can fix the crack without it showing up in the decorative concrete. Ask questions.
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