Thursday, June 25, 2009

Re: Max. temperature for concrete

Thanks for the reply. As mentioned, after considering 5000psi concrete & silica fume, can concrete take temperature around 200 degree centigrade, without provision of any inside insulation. Reply for the same will be highly appriciated.

On 6/25/09, <> wrote:


There are a couple of PCA documents that indicate for non-fire related cases concrete can sustain continuous temperatures up to approximately 400 degree F.  Temperatures over 500 degree F will definitely cause deterioration.  ACI 349 for Nuclear Facilities takes a very conservative approach and limits concrete temperatures during normal operation to 150 degree F and 200 degree F for local areas such as wall penetrations and for accidental or short term exposure 350 degree F and 650 degree F for localized steam or water jets.  For a sulphur storage pit be sure to specify a high performance concrete with minimum 5000 psi with a good mineral additive such as 7 to 10 percent silica fume.

Thomas Hunt, S.E.

Bhavin Shah <>
06/25/2009 08:46 AM
Please respond to seaint
"" <>
Max. temperature for concrete

Pl. let me know that what is the maximum temperature bare concrete can withstand, in case of liqquid sulphur storage pit (concrete strength = 4000 psi, crack free design).
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