Not gyp-crete; not sure what it is?

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  #1  
Old 05-20-08, 01:03 PM
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Not gyp-crete; not sure what it is?

Here is the situation.

I live in a condominium community constructed in Northern Virginia in the 1988-89 timeframe. The flooring system is based upon a 3/4" plywood sub-floor with a 1/2" to 3/4" poured material on top of the plywood. Wall framing was in place since the sole plate 2 x 4s are partially embedded in the material.

From what I can determine, it's not gyp-crete. It is a sand based material (crumbles rather easily when wet) with minimal binder type material.

Question #1: Has anyone else seen such a floor covering material before?
Question #2: What is this material called?
Question #3: Is there anyway to stabilize it from cracking and/or repair any cracks that already exist?

Thanks.

-R Rzepka
 
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Old 05-22-08, 04:26 PM
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Sounds like a mud bed to me. Was there anything on top of this floor like tile?
 
  #3  
Old 05-23-08, 06:20 AM
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Hi Mark,

It doesn't appear to be a mud bed.

The original builder "poured" it throughout the 1st floor. So, I have it underneath the vinyl flooring in the bathrooms and kitchen as well as underneath the wall-to-wall carpeting in the bedrooms, dining room, living room and hallways.

One other interesting aspect of this material is that seems to hold up rather well until is gets soaking wet. Once wet for some period of time, it literally dissolves into this sand like particles.

-Robert
 
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