This will cut the pipe more evenly. Even if the pipe is buried there it typically the same problem because the excavated soil will compress over time and cause a crack. it also depends on what type of base the concrete has been layed. Barring being able to find a buildings and safety department write to your state attorney general and explain, send pictures, and ask that the entire package be forwarded to the correct offices. of fill on top of the pipe...i have done some garage floor drains where the pipe was just under the pour without any problems , but the floor wouldnt be subjected to the freezing and thawing the drive is...chances are if its cracked all the way across , there may not even be 4 in. When installing horizontal piping under ground, a bedding of gravel should be laid in first. So long as the invert level at point A is higher than point B water will flow. 4 inch should be 1 … – Ecnerwal Aug 30 '19 at 14:16 I don't know what it is, but sometimes if you search long and hard, you find what you're looking for. ABS Pipe. Do other people pour concrete directly around PVC drainage pipe? Make sure the conduit is at least flush with the sub grade or it will act as a control joint and the concrete will crack at the place the pipe is. concrete on ABS pipe? It's not really a structural crack as much as it is a cosmetic crack, but it is usually unnecessary. 4 in. You will also need to de-bur it. So far I assume I need to remove a bit of sand from the sides of the pipes so that I can have the concrete deep enough. A 2" abs pipe is shared by both the vent and the water runoff from a shower. Should I pour in some concrete in the bottom of the trench here and there to hold up the pipe before backfilling trench with dirt ? My questions are electrical - new dimmer switch - old switch has 4, new switch has 2 wires, (w/ images). Also consider sloping ground around entire area Away from casing . It should not have done that. I have pea gravels but how to prepare and pour cement over it? The stream is powerful enough to travel around turns and corners, and can even dismantle tree roots if required, so it is certain to be enough to clean out wet concrete or cement. 3 that video above with the guy putting steel in the bags is my video. This is not rocket science; any skilled builder will know better than lay thin 4-inch concrete directly over a pipe, it is guaranteeing a crack. This foam tape is packaged in a 4 in. do I need to wrap the pipe with vapor barrier or lay that plastic sheet on top of the soil then gravel then cement? Don't do it all at once, take breaks to stir/ pack/ agitate/ vibrate the concrete and shift the rebar around to make sure the rebar stays mostly centered in the pier. It can be used with a variety of DWV pipe sizes and flanges. Mike Antonetti, Sep 9, 2014 #5 I am extending my shed and adding an outside Bathroom, with a toilet, shower and basin. for specific codes. 4 I can disprove your theory that the concrete will not set up correct due to water ratios. At my company we cut sleeves (PVC or larger conduit) and place it around the pipe and fill the gap with sand.Then we have them pour all around the sleeve leaving an area around the pipe that is exposed (around 2"bigger than the pipe). Yes, you can put concrete right over the ABS pipe. The flooe will be poured concrete. deep for a drive...we get bad winters here...is the crack straight enough to cut a 1/2 in. How do you think about the answers? Get ready for a long wait though. Concrete can be poured over steel pipes, steel pipes can also be embedded or encased in concrete, so the question begins with a false premise. What is the best way to break out a 4" concrete slab so I reroute my shower drain? Should I pour in some concrete in the bottom of the trench here and there to hold up the pipe before backfilling trench with dirt ? The job can be simple and cost-effective when the correct preparations and techniques are applied. If the ground was compacted correctly, the driveway shouldn't crack. 1. Use a shovel to pack dirt around the pipe until the dirt is level with the bottom of your concrete slab. How to screw plywood to a Rubbermaid bin? Thanks Spanky, Send a private message to massplumber2008, Connect 1 9/16" Copper Pipe to 1.5 " ABS, Bathtub drain pipe leaking under concrete slab, Breaking out concrete to get to pipe under slab.