Mixing weedkiller with sand for drive

[DIYspanner]

I'm going to pressure wash my brick paved drive to clean the weeds out.

I've had the idea that when its dried off that I could mix some powder type weedkiller in with sand and brush the mix it to the brick gaps.

Does this seem sensible?

 

[skhudy]

Useful link for what you want to do http://www.pavingexpert.com/maintain_02.htm

 

[JohnD]

no

but you can use Pathclear after brushing in the new sand, it will kill seedlings and also leave a film which (if undisturbed) will prevent seeds germinating for some months. However it does not "poison the soil" and rainwater run-off onto your garden will not kill your plants.

A pressure washer will have the effect of washing the sand out and loosening the paving, which is not at all what you want.

 

[r896neo]

there is a product called dansand a few years back which claimed to have this. Doing it your self won't work.