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concrete ?????

Old 06-20-2007, 10:01 AM
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Default concrete ?????

Just had concrete poured around my pool and need to anchor the sliding board down and get water running to it....How long does the crete have to cure before I can do this.???
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Old 06-20-2007, 10:16 AM
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Default Re: concrete ?????

I guess it really depends on what mix was poured, but you could figure on 30 days for a full cure.........but that doesn't mean you can't do your drilling after the concrete has set and you can walk on it.

edit: are you using a pool liner or is the water going directly on the concrete?
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Old 06-20-2007, 10:26 AM
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Thanks G-man...In ground fiberglass insert pool...Got to have this slide up by friday 6:00 pm.Daughter's B-DAY pool party Couldn't get poured any earlier because concrete finishers are loaded with work around here But it's looking good for me because my work is almost done
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Old 06-20-2007, 10:47 AM
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Default Re: concrete ?????

Figure 30-60 days for a full cure. I would say wait 2 weeks before drilling, but you do not have that luxury.

Given your time constraints, wait as long as you can to install the slide.
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Old 06-20-2007, 11:12 AM
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Default Re: concrete ?????

I would wait until Friday afternoon if you can.
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Old 06-20-2007, 12:46 PM
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Default Re: concrete ?????

Was the concrete poured over rebar and roadmesh?
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Old 06-20-2007, 01:28 PM
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It has wire under it and fiber mixed in with concrete and expansion joints every 6 ft..Total of 12 yds of concrete....Man is that stuff expensive now ($115.00 a yard)
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Old 06-20-2007, 01:37 PM
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Default Re: concrete ?????

fiber reinforced concrete is expensive, no doubt
conventional mixes here are 85- 90 a yard
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Old 06-20-2007, 01:42 PM
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Default RE: concrete ?????

WO Fishing,
Cocnrete mix designs reach thier design strength at 28 days (90% if hydration will be complete in that time frame).
the greener the concrete is, the easier it will be to drill into. Make sure you use a hammer drill and go to work. Just try not to punch all the way throught the slab.
I am an ex-concrete finisher, and now a general contractor specializing in concrete "tilt wall" building, so you might say I have some experience.
Feel free to PM me if you want add'l info.
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Old 06-20-2007, 01:44 PM
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Default Re: concrete ?????

Couldn't place the anchors during the pour?
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Old 06-20-2007, 01:49 PM
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WFOFISHING - 6/20/2007 2:28 PM It has wire under it and fiber mixed in with concrete and expansion joints every 6 ft..Total of 12 yds of concrete....Man is that stuff expensive now ($115.00 a yard)
Just be glad you didn't need 2-3 yards. You'd still get charged for 7!! [img]../images/emoticons/mad.gif[/img]Concrete companies!
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Old 06-20-2007, 02:12 PM
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Default Re: concrete ?????

I agree with posiedon. Built lots of concrete homes in the Keys and we always tried to anchor anything into the concrete within a week or so, provided it was formed properly and had plenty of steel.
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Old 06-20-2007, 02:19 PM
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Default RE: concrete ?????

I would suggest instead of using an expansion type fastener (red head, etc.) that may fracture the uncured concrete when it expands, use an epoxy cement. With this method, you will drill a larger diameter hole that the fastener you plan to use, mix the epoxy, then "glue" the fastener in place. The epoxies have higher strengths than the concrete. The trouble may be the fastener itself and finding something in stainless for your outside application. When we do our anchoring inside, we use threaded rod in whatever size we need and epoxy the threaded rod in the hole.

Good luck - hope this helps!
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Old 06-20-2007, 02:43 PM
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Default Re: concrete ?????

Ok I can see a problem is lagging down the slide to early, but where's the problem in drilling the holes early on? My thinking is the drilled port will allow the concrete to air off that much quicker in that area.
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Old 06-20-2007, 02:47 PM
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Default Re: concrete ?????

I'd be happy to pay $115 a cube these days......we're paying $135 now-a-days. $115 is what I was paying 15 yrs ago.
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Old 06-20-2007, 07:25 PM
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Default Re: concrete ?????

epoxy anchor
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Old 06-20-2007, 07:42 PM
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Default Re: concrete ?????

I was taught 21 days minimum.

on epoxy mounts. Just don't get the "Big Dig" ones.
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Old 06-20-2007, 10:29 PM
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Default Re: concrete ?????

Garett - 6/20/2007 2:47 PM

I'd be happy to pay $115 a cube these days......we're paying $135 now-a-days. $115 is what I was paying 15 yrs ago.



must be your location 9 yrs ago $65 with fiber
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Old 06-20-2007, 10:37 PM
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hey yall..THANKS FOR THE TIPS!!!!Concrete has sat for around 30 to 40 hrs as of today...I put slide in place and anchored with stainless red-heads...Semi-snug ...Have to remember to tighten up Friday at 5.00pm...(before the wild indians come over)...Who woulda thought you could get this kind of info on a BOATING FORUM Thanks again.....
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Old 06-21-2007, 04:30 AM
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Default Re: concrete ?????

Hell I used 90 yards in my pours for my rebuild from Katrina, 91 bucks a yards with fiber. Minimum order 2 yards.
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