I have a typical driveway with concrete slabs that have a gap between each slab. I've been fighting a losing battle with lots of weeds growing in the gaps. Every time I manage to kill and pull up the weeds, within a few weeks, there's a new batch. What can I use to fill in the gaps? I saw this at home depot
http://www.homedepot.ca/product/ston...ic-sand/908089
I heard it's a pain to mix and doesn't work very well. Any suggestions??? Thanks!