Although you can use tumbled concrete pavers, lately I have been using travertine pavers. They are very beautiful and also cool on your feet, which is a plus around a pool. They are dry laid and some colors have a matching bullnose for the pool. The Andes Collection have two widths for bullnose...12"wide and 24" wide. If your pool is curvilinear, use the 12" as there are less cuts.
I have a page on my website about them with some photos.
http://www.landscape-design-advice.c...ne-pavers.html
Susan