Free Calcium Silicate
I have a big pile of half round pieces of calcium silicate good for insulating a wood fired oven. Picked it up from a manufacturer here in Los Angeles for free. I started my building and the day after pouring the slab, found out my wife was being promoted at her business and we are relocating to Florida for a few years. I doubt I will have time or space to build a wood fired oven there, plus the screened in pool area might not be ideal. Free to anyone who wants to come by and pick it up.