Sleepers on concrete

[Carlnorwich]

I've got some mini sleepers; 1200 long, 150 wide. I want to run a line of them (just one high) along my concrete drive as an edging.

Can I lay a bed of ballast, say 15mm deep (using 10mm stones) and just sit the timber sleeper on top of it?

Many thanks.

 

[r896neo]

a very lean mix concrete would be better to stop it getting washed out from under.

 

[Carlnorwich]

Lean mix? Like 3 sharp sand to 1 cement?

 

[imamartian]

why do you need to lay them on anything? i guess your drive is flat? and the sleepers big and heavy enough not to move anywhere?

 

[r896neo]

a lean mix meaning very little cement. just enough to hold it together.

If the drive is quite flat and you only need a bed 20mm deep 6 sharp sand to 1 cement would do.

If you need to have deeper beds 20mm+ then put some 10mm stone in at say 4stone 3 sand 1 cement

 

[imamartian]

a lean mix meaning very little cement. just enough to hold it together.

If the drive is quite flat and you only need a bed 20mm deep 6 sharp sand to 1 cement would do.

If you need to have deeper beds 20mm+ then put some 10mm stone in at say 4stone 3 sand 1 cement

They could just sit on the concrete drive surely?

 

[Carlnorwich]

1200 mini sleepers are quite light. The drive is narrow and used frequently, they will keep shifting so I would rather fix them.

 

[r896neo]

oh, if you need to stop them moving laterally you would need to haunch them with concrete like a kerb or drill holes and put pins through them, re-inforcing bar works well for this.

 

[imamartian]

or if you didn't want to drill holes, maybe lay them on carpet underlay? might stop them shifting?