Should driveway control joints be sealed?


  #1  
Old 09-26-08, 11:52 AM
J
Member
Thread Starter
Join Date: May 2003
Location: Suburb of Detroit
Posts: 261
Upvotes: 0
Received 0 Upvotes on 0 Posts
Should driveway control joints be sealed?

Hi, I moved into a 9-year-old house last year. The previous owner put some sort of a caulk or other type of sealant in the control joints of the driveway (the lines that are saw cut after the concrete is poured). A lot of this has worked its way out and is missing.

Should I reseal these cracks or just strip out the remaining old caulk? I've never heard of putting anything in these joints, so I don't know if it's recommended or not. I live in SE Michigan, so we get plenty of freeze/thaw action.

Thanks for any insight!
 
  #2  
Old 09-26-08, 02:07 PM
P
Member
Join Date: Feb 2005
Location: USA
Posts: 1,306
Upvotes: 0
Received 0 Upvotes on 0 Posts
Either way is fine. The amount of water infiltration through the joints is insignificant compared to the amount of water that can seep in under the edges anyway. One thing caulk may help is freeze damage to the joint itself. For example, if water laid in the joint, froze, and expanded sideways enough to pop the concrete on either side of the joint. Caulk will also keep out dirt, seeds, bugs, etc. Otherwise, caulking crack control joints in the middle of a slab is pointless.

Pecos
 
  #3  
Old 09-26-08, 02:31 PM
T
Member
Join Date: Aug 2000
Location: USA
Posts: 15,047
Upvotes: 0
Received 2 Upvotes on 2 Posts
Self leveling caulk should offer a long-lasting solution. Old joint filler and dirt should be removed from joints. Joints need to be clean for good adhesion.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: