shaneelliss
Structural
- Oct 15, 2007
- 109
I am writing a grouting spec for baseplates and have been reading the resources I can find to do so. In everything I have read, it says that when grouting in cold weather, you need to heat the area, foundation, etc. before and after grouting to allow it to cure properly. Then the resources I have read typically say to gradually reduce the heat until it reaches the ambient temperature to avoid thermal shock. One resource recommends a gradual decrease in temperature over 48 hours.
Rather than provide a specific time (48 hours), I would rather specify a rate of temperature decrease, like 1 degree per hour or something. I feel like this makes more sense because the ambient temperature you are lowering to might be 10 degrees colder than the heated temperature or 50 degrees colder. It doesn't seem logical to require the same amount of time for both cases. But I don't know what is an appropriate rate and nothing I have read gives any hint at that.
Does anyone know what rate I can specify that will provide adequate protection against thermal shock?
Rather than provide a specific time (48 hours), I would rather specify a rate of temperature decrease, like 1 degree per hour or something. I feel like this makes more sense because the ambient temperature you are lowering to might be 10 degrees colder than the heated temperature or 50 degrees colder. It doesn't seem logical to require the same amount of time for both cases. But I don't know what is an appropriate rate and nothing I have read gives any hint at that.
Does anyone know what rate I can specify that will provide adequate protection against thermal shock?
