DIYbanter - View Single Post - Disaster waiting to happen? Using PVC for deck supports???

CJT

wrote:

On May 20, 3:53 pm, "JoeSpareBedroom" wrote:

wrote in message

...
On May 20, 3:40 pm, CJT wrote:

CWatters wrote:

wrote in message
m...

On Sun, 18 May 2008 18:28:48 -0400, Matt Whiting
wrote:

Thomas G. Marshall wrote:

said something like:

...[snip]...

The concrete in steel lolly columns is to help keep them from
collapsing in a fire.

....so the preventing a dent thing is secondary, or not a concern...?

No, preventing buckling is a significant advantage provided by filling
a
steel column.

Matt

Uh, yes. And the buckling it prevents would be the result of fire.
Filling
the
columns with cement is to protect the columns from buckling in a FIRE.

PVC burns doesn't it?

So does steel.

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Steel burns? I guess I learned something new today.

============

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So there's no difference between burning and melting?

Sure there is. Steel will do either (or both) depending on the conditions.

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