We have some brick steps covered with india stone squares and rectangles about 160mm (about 6.5") square and 1" thick. All fine for 10 years but now several slabs that overhang the edges of the steps slightly are working loose, typically leaving the mortar bed on the steps rather than the stone.
How best to repair these. I'm wondering if I could remove any loose materials, use a resin to seal the mortar, bricks and underside of the india stone, then use something like a PU based adhesive to really stick the b----s down?