Great question! It's a common challenge in urban management—needing to keep public trash cans secure and upright without defacing the concrete. The good news is, there are several effective, non-permanent solutions.
First, consider using a weighted base. You can place the trash can inside a heavy, sand-filled plastic or concrete basin. This adds significant ballast to prevent tipping and discourages casual theft, all without a single mark on the pavement.
For a more direct anchor, temporary heavy-duty adhesives like outdoor mounting tape or non-permanent construction adhesive can be used. Apply it to the bottom of the can or a base plate. When it's time to move the bin, a careful application of heat or a specific solvent can release the bond without residue.
Another excellent option is a removable metal bracket or strap system. These can be bolted to a separate heavy plate (like a thick rubber mat or a portable concrete paver) that the trash can sits on. The weight and friction do the securing, not permanent fixtures into the concrete.
Finally, some cities use specially designed, lockable weighted bases that the cans slide into. These are expensive but offer a professional, completely reversible solution.
The key is to prioritize friction, weight, and removable connections. Always check with local regulations first, but these methods should keep your bins right where they belong, leaving the concrete pristine for future use.