hi, on our patio outside we have hexagonal six sided red concrete slabs laid down. since we have been in this house about ten years the mortar between the joints of the slabs seems to have shrunk and now bits of plant and weed are growing in the cracks. i have tried rubbing in a bit of cement mix obtainable from the local B&Q hardware store.... but how to do this without it smearing all over the edges of the slabs and everything looking like a dogs dinner i have yet to (hopefully) be advised on.
problem No 2 with these slabs and the 'real headache' is the fact that on the edge of the patio leading towards the rest of the garden the slabs are cut in half and have an 'over- hang' of about an inch or so. many of these slabs have come 'unstuck' and the overhang is just enough to tilt the slabs, if anyone steps on the edge. i have tried several times to stick them down with the readymix cement from B&Q, but they are just not staying stuck down.
any advice i would be grateful for....thanks
yours john west