... strength, 3.Excellent resistance for slag and spalling Refractory Gunning mix for maintain of blast furnace and hot blast stoveFeatures1.Excellent ... (MPa)Drying≥4≥8≥15≥4After sintering≥7≥12≥20≥10Linear Change%(1000°C,1h) ≥7(1000°C,3h)≤-0.2(1000 ... bonding strengthMPa(600°C,1h) ≤-0.2(1000°C,1h)≥7(1000°C,1h)≥7(1000°C,1h) ≥20Photoes refractory gunning ...