Water seeping through new slab problems

Hey guys.
Essentially we have created a concrete bunker, shotcrete floor and walls with a bondek roof. Then regular concrete poured on the bondek for the top (used as a deck). For some reason when it hammers down with rain, water is seeping through on the internal walls... I'm just wondering what I can use to seal it up ... Is there some sort of expanding weather sealer or something I can caulk in? It seems to be sealed from the outside..
I'll attach some pics of the process.

https://imgur.com/27kuMS7
https://imgur.com/JKXqMDr
https://imgur.com/80TZEsL
https://imgur.com/MveITay
https://imgur.com/usPeZ7D

Hi Stippo
Welcome to the forum
Check your certified construction and engineering drawings and details for a section marker
The engineering notes should mention Waterproofing
Unfortunately, Caulking is a temporary fix and won't last
Search Basement Waterproofing Membrane
Cheers
Chris

paintable waterproofing membrane maybe? unfortunately it's all constructed and rendered....

You mention that you are using it as a deck.
What finish is on the top surface and is it completed yet?

The rule of thumb is that you should always have layer of waterproofing between two materials with different suction properties

HI there,

we are experiencing a similar problem, with a mancave built in a similar style. Wondering whether you have resolved the issue?