Filling in a tracked floor

[justy_r]

Hi all
I've just removed a couple of radiators in a ground floor extension and put in a new one in a different position. The floor had to be tracked to a depth of 5 or 6 inches. What I would like to know is what is the best method/mix for filling these holes?
Cheers

 

[big-all]

heeelllooo justy r

are you saying you have dug a channel in concretete to put the
pipes in and now need to fill it in

big all

 

[justy_r]

yes thats exactly what I'm saying.
Any advice?

 

[2scoops0406]

Sand and cement ? Concrete ? Sounds fairly simple, am i missing something?

 

[justy_r]

yes i know sand and cement/ concrete, what I was asking is what is the best mix (ie. ratio) for this job.

 

[masona]

Ratio 4:1 Sharp sand/ Cement

Also best to protect the copper pipe from cement with denso tape, bitumen or insulation pipe etc........

 

[justy_r]

Cheers masona,
Pipes are well protected with lagging, tape etc.
So you reckon just sand/ cement, no concrete then. The holes are roughly 4-5 inches deep.

 

[masona]

Pipes are well protected with lagging, tape etc.
So you reckon just sand/ cement, no concrete then. .

Yes, just sharp sand & cement. Damp the area with water or unibond if you wish

 

[justy_r]

Cheers mate