yellow carrera marble?

marble

Help! Whats happening with the new carrera marble?

CCSowner

Is it in just that one piece? It could be everything from the thin-set used to the sealer used to it came like that.

Bud Cline

marble,

If you seriously want some answers or opinions you need to offer more information. How can anybody make any educated guesses with only what you have posted?

If you could just answer three out of the six questions we may be able to help.

Bill_Vincent

Quite honestly, that doesn't look like a new slab, but even if it is, it can be one of two things. First, it can either be rust from iron in the stone, or it can be a stain from a wood "A-frame" that the slab might have been sitting on for a period of time. Before anyone could say for sure, though, as Bud said, we need more info.

Start splainin!!

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yummy mummy

Bill

I just took a look at your pics. VERY NICE, work.

Bill_Vincent

Thank you.

I fake it real good.

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marble

1. How long has it been like that?

3-5 months.

2. Did it happen suddenly or grow over time?

It started to be yellow after some few weeks on the dry but new concrete surface below. We do not know if it's caused by the marble as it's shipped or if it's water and other chemical components from the concrete in combination with long dry time. The problem is bigger inside the building than outside.

3. Is the entire floor area like that?

No. Big parts are.

4. What is the substrate wood or concrete?

Concrete. Cure time of concrete was a lot longer than normal to be sure it was dry enough.

5. Has the floor ever been flooded?

It was cleaned with some water once. Then covered with wooden plates for months for protection.

6. Do you live in the city or the country?

Picture of building:

http://www.bygg.no/image/2573/1/4/2573_1.jpg
http://cache.aftenposten.no/multimedia/archive/00643/_23112007175654_jpg_643352s.jpg


All the white is this type marble...

The marble order was about 10 million dollars. The floor is huge...
The building cost more than 7.5 billion dollar

Suggestion: Yellow may be pyrite oxidation (rust)

Suggestion to solve problem:
From: Adam Forsythe
Creative Covering Solutions
www.CreativecoveringSolutions.com

Product: http://www.prosoco.com/ProductDetail...3D513C6C4FB%7D

Bill_Vincent

As good as the product is that Adam suggested, different stains clean up better with different poultices. Now, my first reaction when I first saw the stain was rust due to iron in the stone. Problem is there's a pattern of sorts to it, which then leads me to something the stone may have been leaning against, or that may have been laid upon it, such as rough hewn wood on top of it, or leaning it up against a wooden "A"-frame, meaning it could be a "sap" stain. Both of those would require different poultices.

That's about the extent of my knowledge. My suggestion would be to talk to someone who specializes in stone restoration.

This restoration forum would be a good place to start:

http://johnbridge.com/vbulletin/forumdisplay.php?f=16

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