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rdtuna
Registered Users
Posts:4
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| 02/05/2005 12:41 AM |
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I have difficulty finding a local company that woukd deliver a premixed gypcrete cement. I want to pour it over radiant heat in a small front room and install terracota tiles over it.
Its a small room and i would like to mix gypcrete myself.
CAn someone tell me the formula of a mix?
Thanks |
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gordb
Registered Users
Posts:5
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| 02/09/2005 9:05 AM |
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Not sure of your situation, but if possibe, I would go with concrete. In my area gypcrete is hard to find and when you do it is expensive. If your floor system can carry the additional load I would go with concrete. The tile council of america does not recommend putting tile over gypcrete, while on the other hand, cement is an ideal base for tile. If interested, I can dig the recommended concrete mix up for you or you could call PCA.
,,,,Larry |
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Unregistered
Registered Users
Posts:2321
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| 02/19/2005 3:43 AM |
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Use aerated cellular concrete--lighter than gypcrete and more stable and stronger. About the same price.
Jonathan Hampton
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KenF
Registered Users
Posts:1
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| 03/09/2005 1:00 PM |
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Actually Larry, in the 2005 TCA handbook, Gypsum concrete is an acceptable underlayment, with the addition of a crack suppression membrance.
Darius - you cannot mix gypsum concrete yourself, it would literally be impossible. There is very specialized mixing equipment used (high speed) that prevents the gypsum concrete from setting while in the machine. One of the advantages of gypsum is that you can walk on it in about 90 minutes. Conversely...if you tried to mix it in let's say a wheelbarrow, it would be starting to solidify by the time you tried to dump it on the floor. Gypsum is not ideal for very small applications such as one room for the sole reason of cost (whether a contractor does one room, a whole house, or an aparmtent building, he will still have to bring out the pump and the crew). Where the benefits come into play is where multiple rooms need to be done, and the costs of gypsum per square foot decrease and all of the benefits come into play (no cracking, expertly installed, etc.). |
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