ᐅ Pouring a concrete strip in front of the garage

Created on: 15 Mar 2021 16:24
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BBaumeister
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BBaumeister
15 Mar 2021 16:24
I have the following problem: There is a strip about 20cm (8 inches) wide directly in front of the garage door that is still free until the driveway paving begins. This area still has the garage foundation below. The landscaper who paved the driveway didn’t want to cut the paving thin, as he said that just over 4cm (1.6 inches) thickness would not be sufficient and the paving would crack if driven over by a car. Now I want to concrete this strip and have thought of the following:

- Insert a reinforcement made of fine-mesh metal for stabilization. Then pour concrete and afterward paint it with garage paint (2K).
Problem: I plan to mix somewhat coarser sand with cement and want the result to be as stable as possible without cracking. At the same time, the surface must be as smooth as possible to look good. What mixing ratio of sand to cement would you recommend? Are there any additional tips to make it as stable as possible?

We have two regular cars (Audi A4 and VW Passat), which will drive over this area twice daily each.

Thank you very much for your help.
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Osnabruecker
15 Mar 2021 16:31
BBaumeister schrieb:

the result is as stable as possible and does not develop cracks.

That is too thin, it will not be a crack-free long-term solution.

Otherwise, your approach is reasonable. Use a mix of 1 part cement to 4 parts sand.
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BBaumeister
15 Mar 2021 16:35
That’s really frustrating. I had read somewhere that concrete gets stronger if you use blast furnace slag as an aggregate. A neighbor still has several metal grids that are 3cm (1.2 inches) high with a mesh size of 1.5cm (0.6 inches). Maybe I’ll cut them to size with an angle grinder and then have a fairly robust reinforcement.
tomtom7915 Mar 2021 17:00
We installed 4cm (1.6 inch) thick granite directly on adhesive, so nothing will break anymore and it looks good.

The joints are also sealed with adhesive.

Außenansicht eines grauen Metall-Rolltors am Eingangsbereich, Pflastersteine und Abflussrinne
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icandoit
15 Mar 2021 18:39
tomtom79 schrieb:

We installed granite slabs 4cm (1.5 inches) thick, directly onto adhesive; nothing breaks anymore and it looks good.

The joints are also sealed with adhesive.



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Great idea. I like it. For me, it was tight in some areas. The Hilti and angle grinder helped to remove the concrete.

What happened to your car? Are those oil stains?
tomtom7915 Mar 2021 18:50
This is water. I also had to repair the edges beforehand because the concrete had come loose in the corners, so I ground and chiseled it. The rest was dust, which fortunately was cleaned away with the pressure washer.