The following summary discusses potential causes of concrete deterioration and the factors that influence them. (not release from the mold) You could cut the pvc the appropraite length then split the pvc along one edge with a skill saw. The UL listing says both 80 and 40 can be used in both above and underground installations. You can run it in the concrete but as the other expert pointed out if you have a problem it's etched in stone so to speak. It can cause serious burns to you and the fumes are horrible. The way to treat pvc is to use a paint-brush to apply gooey "MASTIC" to the pipes. Sometimes, that doesn't do the trick. Concrete can deteriorate for a variety of reasons, and concrete damage is often the result of a combination of factors. One end is brought out of the footing and connected to the base of the steel columns. Leave a little residue in a plastic paint bucket, on a plastic tool handle, or on any other plastic surface, and try to get it off a few days later. The concrete will lock up in the PVC unless you find a way to release it. After that line with wax paper and fill with concrete. When used for ufer grounding the bare copper conductor or the steel rebar has to be in direct contact with concrete. In fact, PVC pipes last approximately 100 years. Phosphoric acid and trisodium phosphate are the main compounds used to dissolve concrete leftover from masonry work. Normal concrete will cure just fine in a sealed container. Muriatic acid may not hurt PVC or other drain lines, but it is much too aggressive for monthly maintenance and it is potentially dangerous to use if not careful. Ideally it should lie horizontally, within 2 to 4 inches from the bottom of the footing. You ask what gives ? The advanced liquid formula dissolves and physically breaks down concrete by attacking the Portland cement, eventually reducing it to mush that is easy to clean off with a hose or pressure sprayer. Schedule 40 rigid PVC conduit, elbows, that are specifically marked for underground use are suitable for use underground only by direct burial or encasement in concrete. Passing thru a pvc sleeve defeats the purpose. I think the PVC itself is fine with concrete, but the plasticizer used may not be. For the cost of 1/2 inch pvc you would be much better off using it. Cement sticks very well to plastic, or at least Portland cement concrete does. I think whoever told you that concrete eats pvc is wrong. Of course, there are various factors that determine just how long specific PVC pipes will survive, including what it’s exposed to and how it’s installed. CORROSION OF EMBEDDED METALS Fig. The heat generated is a result of the exothermic reaction between the cement (lime in the cement) and water. krom New Member Posts:58: 18 May 2014 11:27 AM: You may be able to use the aluminum layer in pex/al/pex. Concrete & Mortar Dissolver. As one of the most-used plumbing materials, PVC pipe is known for being very durable and long-lasting. How can PVC pipe be used as reinforcement in concrete? One way would be to line the pvc with wax paper. Concrete is a durable building material that takes special materials to dissolve once it's hardened into place. PVC pipe is not a conventional reinforcement used in concrete in the way that fiber reinforcement, rebar, wire mesh, or other reinforcing materials are. Copper pipe has been used in concrete slabs for radiant, with disastrous results, it … 1. caitlinsdad is right about the bond--it is a chemical reaction involving the 'cement' in the concrete (typically a Portland Cement) and water. For monthly or annual maintenance to the pipes please stick to the safe solution of the Rid-X treatment. Even drains are in pvc and concrete Easily remove concrete from your tools and equipment with Mean Klean 22 oz. Also the heat of the concrete can expand pvc pipes, though the concrete-itself is not particularly corrosive to the pvc. I use it in concrete all the time . Because the PVC has straight sides not sloped.