Replies

1. 
   Rob_Dykeman | Mar 26, 1999 10:03pm | #2

   *
   Terry
   Don't install the tile till the concrete has had 30 days to hydrate.
   Is this a slab on grade or on a floor system?

2. 
   Guest_ | Mar 27, 1999 01:00am | #3

   *
   Rob-

   The concrete ia part of floor system. Will the concrete hydrate faster over the floor system rather than on grade?

   The concrete is part of my radiant floor system. Would it help or hinder to circulate water through the concrete as it hydatres? I would expect that a lower temp, perhaps 60 degrees might be ok. What do you think<
   
   Terry

1. 
   Guest_ | Mar 27, 1999 03:14am | #4

   *Terry,Wait 30 days(sometimes longer) before placing tile and/or stone.Do not circulate the RFH system for 3 weeks (my opinion).Try to keep the area above and below the pour 50 degrees or above.Damp cure for at least 7 days after the pour.Contact: http://www.tileusa.com/ for industry suggestions relating to tile placement.email me if you would like.

3. 
   Rob_Dykeman | Mar 27, 1999 04:41am | #5

   *
   terry
   if the temperature in the house is 40/50 degrees and the sun is not beating down on it it should cure ok. if the sun is beating on it or the temperature is way up or way down you'll need to protect the floor. as stated in the other post damp curing is best but sometimes not practicle because of the job site conditions. you could lay plastic over it to keep moisture from escaping. damp cloth will work. if you know what was the concrete design mix? was there admixes used and if so what were they? was the person who placed the crete ACI certified? this sometimes means nothing but if he was then aleast he should know how to cure the concrete according to what the design mix was. If there was a chance of it being real cold he could have used an excelerator to speed the cure up. Thats why you need to know whats in the mix before you can truly determind how to cure it. call me if you want 1-800-857-2324
   Rob

4. 
   Guest_ | Mar 27, 1999 04:41am | #6

   *
   Two days ago concrete was poured in my house for the radiant floor heating system. The concrete was not Gype-crete, but light weight concrete with a sand/pea gravel fiberglass mix. Tile will cover about 700sf of the concrete area. Wondering about the cure time for the concrete before installing tile. I live in Washington state. Normal temps are 40-50 days, upper 30'3 at night for the next month or so. When could the system be fired up and heat added to the concrete via the boiler?

1. 
   Guest_ | Mar 26, 1999 04:55am | #1

   *Minimum wait after pour before setting ceramic tile on slab: 3 days on 2800 psi concrete. I like to wait min. 10 days.