Set modifying admixtures for refractory shotcreting

摘要

A method of applying a refractory castable material to the surface of a structure comprising the steps of thoroughly mixing a refractory castable material comprised primarily of aggregate and a cementitious binder; conveying the refractory material under pressure through a delivery hose to a dispensing nozzle; and adding hydrated lime to the refractory castable material prior to application by the nozzle.