Protecting compacted hardcore?

[Conor]

We've just put down all the compacted type 3 for the basement slab. It could be a few weeks before the main contractor is able to do the tanking and concrete pour.

 

Do I need to cover and protect the stone from the weather until then? I'm concerned that the fines will get washed out, leaving the top surface loose. Few sheets of weighed down DPM?

 

There's still a sand blinding layer to go on, but that's being done by the MC.

 

Edited July 15, 2020 by Conor

[Russell griffiths]

I personally wouldn’t do anything. 

Get a leaf blower on it the day before the guys turn up and give it a tidy up. 

[Declan52]

Have you a sump hole dug just incase you need to drain any surface water quickly.

[Conor]

57 minutes ago, Declan52 said:

Have you a sump hole dug just incase you need to drain any surface water quickly.

We've a twin wall drain running all the way down to the bottom of the site. Sits about 300mm lower than the base and filled opening with rubble and stone. Seems to be doing the job well so far.

[Declan52]

3 minutes ago, Conor said:

We've a twin wall drain running all the way down to the bottom of the site. Sits about 300mm lower than the base and filled opening with rubble and stone. Seems to be doing the job well so far.

Even better then.