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Author: Subject: help required re expanding grout
Lightning

posted on 14/11/13 at 10:48 AM Reply With Quote
help required re expanding grout

As this forum is the font of all knowledge, can one of you steer me in the right direction.

Industrial, massive steel chimney. The client wants an Expanding grout under the base plate to seal a 75mm gap so water cannot get to the holding down bolts (2.5m diameter)

Can anyone recommend what I want?


Many thanks





Steve

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designer

posted on 14/11/13 at 01:36 PM Reply With Quote
Expanding grout?

Surely you mean a gap filling foam? It's readily available.

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femster87

posted on 14/11/13 at 01:47 PM Reply With Quote
Yeap, there is such a thing. Its called non-shrink grout. I have not used any, but I came across it at work. From a google search. Looks like travis perkins have some
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Lightning

posted on 14/11/13 at 02:22 PM Reply With Quote
That's what I thought use gap filling foam its the client that wants expandable grout. Travis do some but what I can see isn't suitable for that size gap





Steve

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theprisioner

posted on 14/11/13 at 05:11 PM Reply With Quote
I have used a product similar to this before:

http://www.quikrete.com/productlines/FastSetNonShrinkGrout.asp

Cementaneous non shrinking grout is what is normally used on this app I think?





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http://austin7special.blogspot.co.uk/

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woodster

posted on 17/11/13 at 08:49 PM Reply With Quote
At work we used a 2 pack epoxy resin grout to fill in the gap around holding down bolts under base plates on steel stanchions, can't for the life of me remember it's name but it came from Buildbase and it went off like bell metal, the structural engineer specified it .
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Sloan85

posted on 17/11/13 at 09:05 PM Reply With Quote
Non-shrink ground is used to transfer load from baseplate to structure underneath. A couple we use on site are Weber 5 star and Conbextra.

[Edited on 17/11/13 by Sloan85]

[Edited on 17/11/13 by Sloan85]





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theprisioner

posted on 17/11/13 at 11:35 PM Reply With Quote
"Conbextra" is what I used, I was trying to remember that. Very effective product. Stronger than concrete and waterproof. You need to make a temporary shutter.





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http://austin7special.blogspot.co.uk/

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Lightning

posted on 18/11/13 at 10:09 AM Reply With Quote
Thanks Y'all





Steve

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