1,high density 2,good thermal stability 3,low melt loss rate In order to ... thickness should be determined according to the blast furnace, for general 150mm-200mm thickness, material paved with ramming ... 101.85~2.00Linear change rate%1450°C×3h0.3~1.00.5~1.2Flexural strengthMPa110°C×24h3.1 ... , non-stick iron, service life is stable for at least 15 days. bake free ramming mixes for trough of blast furnace