Hi there
Guessing this is a real dumb question but what is the black/dark grey mortar used for the cobble setts in these photo?
Is it just regular mortar with black colour powder mixed in? Particular type of very dark sand? Or some kind of specialist driveway mix?
Many thanks
Tom
Guessing this is a real dumb question but what is the black/dark grey mortar used for the cobble setts in these photo?
Is it just regular mortar with black colour powder mixed in? Particular type of very dark sand? Or some kind of specialist driveway mix?
Many thanks
Tom