How much weight can drainage pipes handle?

[snowjim]

Hello,

This is an unusual question. We were planning to use a piece (about 1 m) of drainpipe with an 11 cm diameter for an activity where a person will stand on the pipe and possibly jump. I suspect that drainpipes can take quite a bit of strain, but can it handle around 100 kg directly on the pipe? In the ground, weight is distributed a bit differently.

Is there any significant difference between pipes from Biltema or a brand store like Rinkaby rör for this specific purpose? Is there any particular type of pipe one should look for?

If a pipe cannot handle the stress, maybe we could cut out some foam to press into the pipe.

At the same time, I can ask if there is any type of rubber sleeve or similar that can be put on the outside to increase grip? Maybe there is something ready-made?

 

[Prodigys]

It handles 100kg without any problem.

 

[snowjim]

Excellent! It doesn't matter which pipe you choose from these examples:

Avloppsrör PP
https://www.biltema.se/bygg/vvs/rorinstallationer/avloppsror/avloppsror-2000023050

Avloppsrör UD
https://www.biltema.se/bygg/vvs/rorinstallationer/avloppsror/avloppsror-ud-2000040363

 

[snowjim]

After testing, we can conclude that both can handle 75 KG, but PP flexes significantly more than UD. In my case, I chose UD, but even that tube flexes around 1 cm with 75 KG. Right now, it works okay for my purpose, but it is likely that I will need to stabilize the tube further. My thought then is to cut another piece to be inserted into the existing tube.

I can also add that it's excellent to cut with an angle grinder; I think this is clearly better than using a jigsaw.

 

[Staffans2000]

Fill the pipe with cement.

 

[hempularen]

Might be enough to fill with sand. And plug the ends.

 

[knipo]

Oh now you must of course share with us what it is you do?
I am of course curious.....

 

[snowjim]

There will be some movement of even the younger ones, so unfortunately, I don't think it's a good idea to fill the pipe in this case.

It's a balance board I'm building.

I still believe in cutting a pipe to fit inside the existing one, the alternative would be to cut styrofoam. Styrofoam obviously has some spring to it, but if you fill the pipe with it, it should solve the problem.

 

[Guzzi]

Foam sealant?

 

[useless]

When the pipe has been in the sun for a while, it probably won't hold as much.

 

[snowjim]

Foam sealant?

I have heard something about it being toxic? After all, there might be children using this. You can, of course, seal the ends, but honestly, I don't know how it could be done in a reliable way.

 

[snowjim]

When the pipe has been in the sun for a while, it probably won't hold as much.

Aha, so the plastic can't handle UV then I assume. The idea is that the pipe won't be in the sun, this is used indoors. But of course, it might be interesting to know if this plastic can leak chemicals even if it doesn't get heated?

 

[Magnus E K]

How big does it need to be? Maybe a rolling pin would work? Or if you have a hole saw with a suitable diameter, cut out a number of pieces from a board and glue them together. Or is it intended to be a feature that it should flex a little?

 

[snowjim]

How big does it need to be? Maybe a rolling pin could work? Or if you have a hole saw in the proper diameter, saw out a number of pieces from a board and glue them together. Or is it intended to be a feature that it should flex a bit?

A little flex probably doesn't matter, in the beginning it's actually good with more flex since it rolls less easily then. But I can imagine that later on you might want it to be more rigid.

But that can be a later project, maybe you make a new pipe then from scratch so you have different levels of difficulty.

I probably don't have a hole saw for such a large diameter, and you have to hit it quite accurately too. However, Styrofoam should be able to be pressed out with the help of the tube itself.

I still think cutting another tube, splitting it in half, and pressing it into the existing one. You just have to hope that the mm that the angle grinder removes are enough for the diameter to fit precisely in the already existing tube.

 

[richardtenggren]

There is Isocyanatfritt-foam.

Otherwise, plugs would help, there are those for slätända since I assume you want to avoid the stosen.