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Event: 12/6 CSI Topic: Floor Slab Moisture

#11
It was all the big CSI spec writers around the county. Gensler, AECOM, Perkins & Will, HOK etc... Probably 150+ on the call.

But it was pretty basic. Focused, I think, too much on mitigation and not enough on concrete design to avoid the issues in the first place.

There was a consensus they need to do it again and perhaps less 'general' I would hope.

I'll post a link to you YouTube video when uploaded
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#12
Thanks for the thoughtLightbulb Don't think so. I have given talks on the subject to upwards of 100 people, but I would never want to do something via Skype...I'd be a nervous wreck.

Thanks!!
JK Nixon
Concrete Restoration Services, LLC
Pittsburgh, PA
http://www.rhtester.com
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#13
(12-01-2012, 09:36 AM)CC Solutions Wrote:  Count me in.
They still use blotter layers by you? Huh

Dealing with this plan right now. They just will not listen.

[Image: A-lH1DzCYAAIR9h.jpg:large]

I need to learn what the control vs weakened plane joints are. I suspect control = active joints = NO GOOD for a gym. Any help?

What does E.W. mean?

Infact if someone wanted to take the above and do a point by point transaltion of what it 'says' and what someone needs to know when I read this it would be a good contribution.
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#14
E.W. = Each Way.

Blotter layers suck. And sand? How do they keep that from displacing while they are pouring unless they wet it first???
JD Grafton
Concrete Answers for Flooring Problems
JGrafton@ccsolves.com
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#15
I haven't seen a blotter course specified in ages. Not a good idea at all. What is their rationale? Perhaps another example of "cut and paste spec writing"
JK Nixon
Concrete Restoration Services, LLC
Pittsburgh, PA
http://www.rhtester.com
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#16
In California I see it on >90% of jobs. At least every week. It may be cut and paste / lazy specs. When I confront the engineers on it, it is usually in hopes of lessening for slab curl since the prices people get for grinding off some curled edges are outrageous.

I see it most often in the Dessert from Cal and down through Arizona.
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