Ramming mass is a type of refractory material used in high-temperature industrial processes, particularly in furnaces and kilns. It is a mixture of various minerals like silica, alumina, and other bonding agents, designed to withstand extreme heat and pressure. Ramming mass is typically used to line the interior of induction furnaces and blast furnaces, providing insulation and protecting the equipment from thermal damage. It is applied by hand or machine and is often used for repairing or rebuilding furnace linings.