Have a block paving driveway on my property (came with the house). Seems to be just sand between the blocks, though now it is more sand and weeds. Can I brush out the sand, and use weedkiller then use a dry mix of sand and cement to "seal" the gaps between the blocks ?
Also, I have some slabs in the patio - is it recommended to fill the gaps between these with a dry mix of sand and cement ?
TIA