There wuz I a-filling this hole: but I got it wrong.

[ToughButterCup]

Oh dear, what a shame, never mind. I'll try again on Friday.

 

This is the problem.

 

Talking to Durisol  about it: ' just back-fill it with some slurry. Cement, PVA, water mix'

 

Tickety Boo. Let's get on with it then.

 

So I made this (chopped up block)

 as a face-piece.

 

and put this on the back of it (the insulation)

 

 

 

and mounted that on a piece of OSB. I cut the corners  so that I could guarantee the insulation didn't catch on the corners of the hole.

 

So far so good. Now let's screw the lot to the wall, and drill the hole for the 'slurry'

 

Now, just pour in some slurry. Whassat?

Water, cement, PVA

 

And I pour it in and it comes straight back out

 

 

Oh dear, never mind. What a shame.

[Jeremy Harris]

Might have been an idea to foam around the edges before squirting in the slurry, perhaps...............

[Construction Channel]

beat me to it. or grout it in first with a less sloppy mix

[Onoff]

Deffo foam the join. Also funnel and pipe poured from up higher. 

[ToughButterCup]

1 hour ago, JSHarris said:

Might have been an idea to foam around the edges before squirting in the slurry, perhaps...............

OK boys, tomorrow.

[TerryE]

I would have been tempted just to bung the insulation block into the hole and foam it into place, and with some drizzle foam zig-zagged on the front to act as a keying surface.  Then when dry, tossed in a snotty mix and tapped the front Durisol plate onto it and banged a few 6" nail through to keep it in place, whilst the snot went off.

 

But liquid does tend to flow through  holes unless you plug 'em.