Use materials other than concrete.
It's certainly possible - just make sure you don't look at the sun yourself.
can a concrete hardner be used after dying concrete without affecting the color
How do you remove electrical cables without damaging existing cables?"
Concrete are used without reinforcement bars on concrete roads.
No the roots cannot be trimmed without damaging the tree.
Hand held electric drills save an incredible amount of time in modern building and construction. Not only for drilling holes, but also for drilling screws in. Construction could not do without the electric drilling machine.
of coures not
Not without damaging document.