Heed what DOCHERB said about using the right "brick". bricks from a chimmney are not suitable for a paving project, especially if you're anywhere that ever gets freezing weather. "Pavers" are designed/fired for pavement use and are denser. My brother did a walkway with regular brick and they were disintegrating within 2 years. Be a shame to go through all that work only to rip it up and do it right in a few years! (Of course maybe if you're in Florida you may be ok........