What's that called?

Question:For inground pools, what is the perimeter decking otherwise called. This one is made of a slip-free concrete but I can't think of the other name. To me, a deck is raised and made of wood and a patio is made of interlocking brick at ground level next to a house. What is this concrete pool patio otherwise called?? [it's driving me insane for not being able to figure it out :/ ;this is for a novel that i'm writting right now]

Answers:
The product is called kool-deck, it's used on the pool's concrete apron.