I contacted one of the only producers of AAC in the states: Aercon, interested in purchasing defunct scrap bricks. They replied that if I were local, I could come get these scraps for free. For anyone in Florida, I would be willing to pay shipping and some extra for some of these blocks. If you live in the general area of the AAC plant feel free to reply or reach out to me and we can work something out.
Aercon is located in Haines City, FL 33844