Insulation under a concrete slab

[milkloss]

What about aerated concrete? Is there such a thing and is it strong enough?

 

[Pieces_of_Eight]

Once helped to lay concrete for a raised kennel bed.

We put a layer of wine bottles, with sand between, then concrete on top

[Not recommended for driving on though]



http://www.sparklingadventures.com/index.php?id=1585

 

[Pond digger]

If it's underfloor heating you mean conduction

Radiation will happen with convection once the heat gets to the top of the slab.

I think in my college days we were told 20-30% of heat is lost through the floor. There will be less thermal bridging though in an Open space

And with properly designed properimeter insulation, that figure should be drastically reduced.

 

[A1an]

I may have missed it but why is a floor that you will be driving heavy plant across heated?

 

[Retraceh]

Going to be using it as a muck drying floor. Reversing a muck spreader on to spread a layer of muck on the floor and then a telehandler to scrape up the "hopefully" dried muck!

 

[Phil P]

Going to be using it as a muck drying floor. Reversing a muck spreader on to spread a layer of muck on the floor and then a telehandler to scrape up the "hopefully" dried muck!

Would you not be better off with a drying floor like they use for wood chip / grain, then blow air through a heat exchanger?
Would dry a lot quicker than just a heated floor.

 

[A1an]

Going to be using it as a muck drying floor. Reversing a muck spreader on to spread a layer of muck on the floor and then a telehandler to scrape up the "hopefully" dried muck!

Have you seen this done before?

 

[Exfarmer]

waste of time with no air flow. If you are doing it with RHI in mind , you hade better get a shift on as I think they are about to clamp down on this sort of wheeze

 

[Retraceh]

The problem with a vented air drying floor is that the air vents would get blocked with the muck. Also as the muck is a lot denser and doesn't have airspaces in like grain or chip it would be hard to force air through it. All other muck driers I have seen pass air over the top of the muck. I intend to have gable end fans in the shed to create an air flow over the top of the muck to aid the drying process.

 

[Pond digger]

The problem with a vented air drying floor is that the air vents would get blocked with the muck. Also as the muck is a lot denser and doesn't have airspaces in like grain or chip it would be hard to force air through it. All other muck driers I have seen pass air over the top of the muck. I intend to have gable end fans in the shed to create an air flow over the top of the muck to aid the drying process.

Why do you want to dry the muck, is it for dairy bedding?