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Joined: Jan 2005
Posts: 2,340
Campfire Regular
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Campfire Regular
Joined: Jan 2005
Posts: 2,340 |
Drill a few holes down in the bottom of the expansion joint. You wouldn't drill a hole in an expansion joint, there is no bottom......
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Joined: Jan 2005
Posts: 2,340
Campfire Regular
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Campfire Regular
Joined: Jan 2005
Posts: 2,340 |
That control joint will soon crack, as it is supposed to. Once that happens water will drain out the joint in the crack. You will see the crack extend through the bit that is left unjointed. Those are not my preferred method of jointing but they are more aesthetic than cut joints. I'm glad you noted that it's a control (contraction) joint and not an expansion joint. At least they OP called it concrete and not cement. I cringe when fellow engineers call it a cement sidewalk. Right, to quote a now deceased friend, "you don't go to the store to buy a loaf of flour"
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Joined: Nov 2015
Posts: 5,674 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Nov 2015
Posts: 5,674 Likes: 1 |
Drill a few holes down in the bottom of the expansion joint. You wouldn't drill a hole in an expansion joint, there is no bottom...... There is a bottom in an scored joint of the type shown. Thats a score not a expansion joint, expansion joints have a material in them. The scoring is to promote controlled cracking! Once is cracked, the holes become redundant! One single saw cut will serve the drainage issue! Ugly but effective.
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Joined: Jan 2001
Posts: 14,318
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 14,318 |
$5 wide blade chisel from the hardware store. Slow & easy chip out the edges you want to drain.
Phil
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Joined: Mar 2006
Posts: 19,504
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 19,504 |
Angle grinder and diamond blade. Easy to do, but the cut/grinding may expose some aggregate and look a little different than the broom finished area.
4 out of 5 Great Lakes prefer Michigan. 
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Joined: Dec 2003
Posts: 86,256 Likes: 25
Campfire Oracle
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Campfire Oracle
Joined: Dec 2003
Posts: 86,256 Likes: 25 |
Take a screwdriver and knock it out and go back inside
Wapner is fixing to come on - - Jimmy
If you take the time it takes, it takes less time.
--Pat Parelli
American by birth; Alaskan by choice.
--ironbender
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Joined: Apr 2017
Posts: 19,735 Likes: 13
Campfire Ranger
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Campfire Ranger
Joined: Apr 2017
Posts: 19,735 Likes: 13 |
Curb stomp Demonrat.
2 fer.
"Maybe we're all happy."
"Go to the sporting goods store. From the files, obtain form 4473. These will contain descriptions of weapons and lists of private ownership."
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Joined: Feb 2004
Posts: 46,745
Campfire 'Bwana
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Campfire 'Bwana
Joined: Feb 2004
Posts: 46,745 |
I've got a concrete expansion joint on my new patio like the one picture and one where two of them cross. I would like to grind or cut out the portion that does not go al the way to the edge to allow it to dry faster with runoff.
1. What would be the best method?
2. is it going to look odd like polished or whatever if I do that compared to the rest of it? The best method would be to leave it alone.
Camp is where you make it.
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Joined: Jan 2015
Posts: 7,862
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2015
Posts: 7,862 |
Buy a cheap 7" diamond blade for your circular saw and cut the edge of the control joint so that the water drains. When you do this, it'll expose the aggregate and might be unsightly. To hide the area that you cut, get a little straight cement and mix it with some water to create a slurry to the consistency of gravy and paint it on the cut. You might still see where the repair occurred, but it'll hide it pretty well.
"Government is not the solution to our problem, government is the problem."
Ronald Reagan
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Joined: Jan 2005
Posts: 2,340
Campfire Regular
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Campfire Regular
Joined: Jan 2005
Posts: 2,340 |
Drill a few holes down in the bottom of the expansion joint. You wouldn't drill a hole in an expansion joint, there is no bottom...... There is a bottom in an scored joint of the type shown. Thats a score not a expansion joint, expansion joints have a material in them. The scoring is to promote controlled cracking! Once is cracked, the holes become redundant! One single saw cut will serve the drainage issue! Ugly but effective. If that joint isn't already cracked its too shallow or in the wrong place.
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Joined: Jan 2005
Posts: 1,152
Campfire Regular
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Campfire Regular
Joined: Jan 2005
Posts: 1,152 |
Diamond blade in a 4” Angle grinder. Harbor freight for $20 if you don’t have one. This^^^^^
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