Concrete patio sinking, NEED advice on remedy
MCCLT
4 years ago
last modified: 4 years ago
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2beachlovers
4 years agoYardvaark
4 years agoRelated Discussions
flagstone on concrete/rock dust - need advice
Comments (3)I need help too. I am inexperienced with concrete, mortar and flagstone. My patio is falling apart along with the steps up to the higher level of my yard that I use for my garden. They are made of flagstone, with mortar in between on a concrete slab. What I plan on doing is removing the flagstone, and chipping away any mortar that my three year old son can't pick up. He just can't wait to get started. Every minute I turn my back he has another piece of 2 inch mortar in his I'm going to relay the stone on mortar and fill in between the stones with mortar. At the edge of the patio and on each step, it looks like mortar has a rounded edge, so I was going to try slapping it on and trying to replace it with the same. Under the stones, it looks pretty dusty, sandy, but I think it might just be the old mortar that was grinding underneath the stone. I'm guessing the patio is 40 maybe 50 years old. Any suggestions would be appreciative....See MoreSinking Joints between laid concrete squares on patio
Comments (5)That would be very difficult and costly to try and seal all those joints and when you get into joints that wide it makes matters worse. I wish I had some good advice to give you, but I am stumped. The water is no doubt flowing down that slope and infiltrating the expansion joints, washing out the soil under the boards. I'm not sure why it was constructed like that, I would think a continuous slab with contraction joints would of been the way to go. I'm pretty sure this is not the direction you are wanting to go, but I'll throw it out there just the same. I have seen people plant grass or some sort of vegetation between the joints, but this is a very distinct look and involves maintenace. Here is a link of something similar. http://www.troublefreepools.com/viewtopic.php?t=826&postdays=0amp;postorder=asc&start=60 I just thought of something else. You could pull out the board, level the soil in the bottom of the joint as best you can, then fill half the depth of the joint with a concrete or mortar mix (making sure to put a piece of fiber board in the side to allow for some expansion), then rip the expansion board to the remaining depth and replace it. This should offer some stabilization to the soil in the joint and keep it from washing out. You could probably fill the entire joint this way, but I think it might look better to keep the expansion boards visible. See the sketch below....See MoreAdvice on DIY concrete patio patio
Comments (15)Another option is to deck over the concrete, depending on the elevation of the back door. You can set 2X4's or 4X4's (PT) directly on the concrete slab and deck over it. This could easily be a DIY project and cost hundreds instead of thousands to give the patio a new life. I agree that a good pressure washing could be a simple solution as well. Look into concrete stains and paints. All of these solutions increase maintenance, expect pressure washing. Good luck and show us after pictures....See Moreneed advice on concrete sealant for patio blocks
Comments (1)By "sealant" are you asking for sealer to paint on the concrete surface? Or something with which to fill the joints between the blocks?...See MoreMCCLT
4 years agoMCCLT
4 years agoYardvaark
4 years agolast modified: 4 years agoMCCLT
4 years agoYardvaark
4 years agoRevolutionary Gardens
4 years agoYardvaark
4 years agolast modified: 4 years agoMCCLT
4 years agoYardvaark
4 years agolast modified: 4 years ago
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