concrete column jacketing 1

[lolobau]

Hallo

which minimum thickness should be provided by jacketing of RC columns?

Do you still need to provide a bounding compound between the old and the new concrete?

lolobau

 

[hokie66]

Why are you "jacketing" concrete columns? What is the problem?

As to bonding compound, I can't imagine how that would work. After applying the compound, the time elapsed to place the formwork would allow the compound to harden, thus resulting in a debonding layer rather than what you desired.

 

[lolobau]

why jacketing? because we have simillar problems to this one here

http://i.imgur.com/GZpQP.jpg

and it seams to me that jacketing would be the cheapest and easiest fixing

so the bonding compounds must be applied imediatly befor the casting?

 

[lolobau]

can a jackteting be also executen on only two sides? Or must it go around the entire column. for example like on this photo here

 

[bridgebuster]

I hope you're removing the deteriorated concrete before placing the jacket.

Weld-Crete can be applied up to 10 days in advance, as a bonding agent if it's necessary.

 

[lolobau]

of course all the broken away concrete will need to be removed

 

[hokie66]

Based on that photo, that doesn't look like a concrete column. More like some type of adobe construction. I don't see how jacketing or bonding will help this situation, as you would just be concealing a problem.

 

[JedClampett]

Reposting under a new name is discouraged by the management.
thread488-330194
Bad lolobau!