Fly-Ash consists of inorganic, incombustible matter present in the coal that has been fused during combustion into a glassy, amorphous structure. Fly-Ash is a pozzolanic material i.e. it is a siliceous or aluminous material that when mixed with lime and water forms a cementations compound. That capability is one making fly ash a desirable admixture of concrete.
Use adequate exhaust ventilation, dust collection and/or water mist to maintain airborne dust concentrations below permissible exposure limits. Wear a dust mask when handling or disposing dust from this product. Avoid contact with skin and eyes. Wash or vacuum clothing that has become dusty. Avoid eating, smoking, or drinking while handling the material.