I assume the "gap" you refer to is the expansion joint between the coping and the concrete deck. The expansion joint is there to prevent damage from occurring in case of movement. There should be no reason for concern, unless you are replacing the deck.
Rebar is used to strengthen concrete because of its strength and flexibility. In order for these rods to work, there must be ample space between the rebar and the edge of the concrete piece.
Steel wool and paint thinner
Gingerwood is good, but not as solid as traditional oak flooring. It will be cheaper, however.
It cuts a vertical line between the edge of your lawn and the concrete or asphalt
To remove scratches or stains, slate may be sanded. "Honing" is generally connected with aligning the platelets of an edge, as in a knife or razor edge.
You can put concrete around the edge
They burrow, their favorite place is under the edge of concrete
Gingerwood floors can be slippery, but not if you apply the right surface coating to it.
Yes. In fact, it's a good practice to run a bead of silicone along the edge to seal out moisture that could creep under your flooring and ruin it.
Thickened edges are not normally required since the design is for free edge stresses.
Used as a noun, a curb (kerb in British English) is a row of concrete along the edge of a road, or, more generally, a raised margin along the edge of something.
Yes, the word edge is both a noun and a verb.As a noun:I hit my shin on the edge of the coffee table.You're standing to close to the edge of the cliff.As a verb:They've dropped their prices in an effort to edge out the competition.Just edge a bit closer and I can grab your hand.