Viewing post #1859945 by Baja_Costero

DaisyI said:Some of the ash from CA wildfires has been very toxic. Not only that but, when you add water to ash, you essentially make concrete.

Water + ash = lye after leaching (potassium/sodium hydroxide in solution) (will raise pH of surrounding soil) (probably flushed well over time with rainfall)

Water + lime (a major component of some ash) = slaked lime, aka non-hydraulic cement (which is different from concrete, the end product usually made with hydraulic, eg. Portland cement, plus aggregate mixed in)