Execution of reinforcement for the base slab

Hello dear forum,

I have a question and hope someone can shed some light on it.

I am currently planning my slab. Front apron, leveling layer, formwork are all clear to me.
I have also received the requirements for the reinforcement from my architect.
However, the execution instructions are relatively brief.

The slab is 8 by 8 meters and 16 cm thick.

The slab will be made of waterproof concrete C25/30.
The reinforcement is chosen structurally.
Fully covered on top and bottom with mats Q257A (joints are overlapped by 2 meshes).
Under door openings 2 times 12 mm IVS on top (L = Lw + 1.0 m).
Under load-bearing walls 2 times 10 mm IVS on top and bottom (ring beam).

When I asked for a reinforcement plan, he wrote to me that with the above information any concrete contractor could create the slab.
But to help me further, he sent me a 60-page document "Betonbau für Statiker" with all possible eventualities.

However, I just need to know how large the spacing must be.
How high is the concrete cover at the bottom to the lower mat? What is the distance between the lower and the upper mat?
The upper concrete cover follows from that. How large is the distance from the mat to the formwork? Can I attach the round steel for the ring beam to the mat?
With a 16 cm slab, there can’t be much room for maneuver. Can someone help me with that?

The house only has load-bearing walls on the outside.

Many thanks
Norbert

Are you building completely on your own, or do you have craftsmen who are building for you? If craftsmen, what do you need to know everything about? If building alone, concreting, reinforcement, etc., you should actually know that.

You cannot build a house like this. Either the architect’s behavior is negligent or you have misunderstood him. Your construction project requires the complete execution plans from the architect + the structural engineer. The structural analysis is part of the building application: construction may not begin without this structural analysis. Furthermore, the structural engineer should at least have been commissioned to produce formwork and reinforcement plans, as well as steel and bending schedules for the delivery of the prefabricated reinforcement bars. These are the details you need and asked for.

The entire situation is more than strange and contradicts any planned construction process. A 16cm slab is also rather undersized. If you want to build a "Weiße Wanne" (waterproof concrete structure), sealing profiles etc. are also part of the project, meaning considerably more planning effort that must be clarified before construction begins. Something is fundamentally wrong here, I fear. You should not be satisfied with the architect’s statement and should demand the services of the structural engineer as described above. Do not continue building before that.