Bleach instead of weed killer?

I've read that bleach will absolutely kill everything apart from the hardiest such as knotweed and ivy.

In fact I've also read that nothing will grow for months afterwards, which is fine as I want to use it on my block paving patio and possibly driveway.

If it is possible to use bleach instead, is there a danger it might damage or discolour the bricks?

Also, should I dilute it, possibly with boiling water? I have a one of those pump
dispensers.

There's no children or pets around.

Thanks very much.

 

Think I would use one of the weedkillers designed for paths and paving.
Cant really see what is point of using bleach?

 

Okay, bleach it isn't.
I thought it might be just more effective but now realising it may be too effective in terms of damaging, even for a patio.
I guess it'll murder all the creepie crawlies as well. Can't have that on my conscience.
Thanks very much, case closed!