ᐅ Rounded front edge of a slab foundation – what are the options?

Hello,

the next project is coming up: tiling the garage.

The tile installer and I have already applied the leveling compound.

The plan was to start tiling on Saturday.

Today, I noticed for the first time that the slab at the front is curved.

The garage door is 4.50 m (15 feet) wide. The slab ends fairly flush with the door on both the left and right sides. Not exactly, but near the middle the slab protrudes almost 2 cm (0.8 inches).

What could be done to straighten the slab here?

Here are some pictures for better understanding.

Saw off. 2cm (0.8 inches) should not affect the existing overlap. Landscape gardeners often use a "moped" — a petrol-powered stone saw (a sort of large angle grinder).

The question might also be how to design the transition between the outside (paving?) and the inside (tiles). If there is a sufficiently wide transition strip (a small floor threshold with a seal under the gate), this might not be necessary.

I took some measurements this morning. It is exactly 1.5cm (0.6 inches). It certainly looks like the formwork board was pushed outward there.

The front will be finished with a stainless steel T-profile. At the top, it has 10mm (0.4 inches) and is flush with the tiles. At the bottom, it measures 65mm (2.6 inches) and creates a clean edge. In the end, it needs to be straight; otherwise, it will look uneven.

The area next to the garage will be paved, but about 1cm (0.4 inches) lower to prevent water from flowing in.