Pipes in concrete floor

[Goldspoon]

How easy is it to lay 15mm copper pipes in a concrete kitchen floor? Hot and cold need to go from kitchen to small utility room but kitchen floor is concrete. I can do the plumbing okay, it's just the concrete bit I'm not sure about.

How do I make the channel that the pipes will recess into (what sort of tool/s ?)

What do I have to protect the pipes with?

Do I just then refill with sand/cement mix to hide them again? Any other options so they remain accessible?

I have not checked any building regs yet but are there any for this job I have to consider?

Thanks

 

[gas4you]

Water regs state that domstic hot and cold pipes must be fitted in a duct and not just cemented into the floor. I'm not sure if they have to be laid with no joints as well.

I'm not too up on water regs as I only do gas and heating usually and heating pipes are not under the same regs.

I'm sure others on here will put you (and me) right.

 

[Norcon]

You can locate the pipes in a chase or duct formed by the concrete.
Insulate the pipes to protect them and back fill with a weak sand/cement mix.

 

[gas4you]

From my limited knowledge I thought you had to put domestics in a duct that is removable for checking the pipe work

 

[Norcon]

I wasn't aware of that G4you.
I am doing a large new build installation at the moment using copper( plastic pipe in pipe was considered) and if this was the case it would add a tremendous expense to the project.
That said I am in NI and perhaps things are more relaxed here.
Diagram G7.1 c: (section 3.18 ) second edition WRG shows it this way albeit with the screed over the top which may be slightly different from what the OP is proposing.
I am not sure how you would integrate a duct system with large groupings of pipework laid on the floor.
If you go to the trouble of laying a purpose designed duct for a few pipes to leave them accessible then expensive tiling and wooden flooring is not an option as removing these will most likely be a lot more hassle than removing the weak sand/cement mix anyway.
The other option for the OP is of course the plastic pipe in pipe system offered by many suppliers.

 

[savilleorange]

my understanding was that burying bare copper pipes under cement mix could cause erosion due to cement composition.