you are also supposed to use water on the blade too because the carbon fiber dust is extremely harmful to your lungs and the water cuts down on the dust.
They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.
You can get a cheap Diamond blade to cut concrete or stone pavers. But you'll loose 1/8'' from the cut. You gotta have some way of catching most of the dust with a Shop Vac that has a bag in it if you can't use water to keep the dust down. Wear a good quality dust mask and goggles. Nitrile gloves are good practice also, tiny CF shards in the skin are painful and hard to get out. I like Nitrile instead of rubber gloves. Nitrile gloves will just rip if something bad happens and the blade catches the glove. Rubber will stretch quite a bit before ripping and may pull the finger in the blade.