Pool Deck Expansion Joints "Refresh"

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Emarshbuck

LifeTime Supporter
Aug 3, 2013
183
Hilton Head, SC
Pool Size
4000
Surface
Plaster
Chlorine
Liquid Chlorine
The pool was built in 1991. The surface is Cool Deck.

The wood spacers in the expansion joints were all rotted and mostly sawdust. I removed all of this material and have purchased 35' of PVC trim to install in the 2" deep X 1 1/2" wide joints. Some of the expansion joints have hairline cracks in the bottom of the joints. Should I seal those cracks with latex caulking (or other material), or just leave them alone and install the PVC trim? The trim is exactly the dimensions of the joints.

Thank you,

ed marshall
 
Those are control joints, not expansion joints. They control where the concrete should crack. The cracks you find in the control joints show it was effective. Leave them as is.

Control Joints in Concrete - When To Cut & Spacing - Concrete Network

Tips for cutting control joints in concrete slabs including information about when to make cuts, depth, proper spacing, corners, and more.
www.concretenetwork.com
 
ajw22 said:
Those are control joints, not expansion joints. They control where the concrete should crack. The cracks you find in the control joints show it was effective. Leave them as is.

Control Joints in Concrete - When To Cut & Spacing - Concrete Network

Tips for cutting control joints in concrete slabs including information about when to make cuts, depth, proper spacing, corners, and more.
www.concretenetwork.com
Click to expand...
Allen,

Thank you! I knew there was a reason for them being installed...just didn't know why...that's why the cool deck has lasted 34 years...

ed
 
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