refractory cement has ISO9001:2000 certificate,high cold crushing strength and high refractability . The detail about refractory cement is following ,1.featured with dual properties of resistance and insulation .2.Characterised by small volume weight,highCCS,small PLC after firing ,low coeffcient of thermlal conductivity,easy instalationn.3With good integrity and air tighness,high thermal effectively reduce weight of furnace lings and lower cost. 

Brand		DGBJ -90	DGBJ -85	DGBJ -80	DGBJ -75
Chemical composition	AL2O3	90	85	80	75
	MgO	3~5	6~8	8~10	8~10
B D ≥	110°C*24h	3.15	3.0	2.90	2.85
	1000°C*24h	3.1	3.0	2.90	2.85
	1550°C*24h	3.0	3.0	2.8	2.8
Permanent liner change%	110°C*24h	0~-0.1	0~-0.1	0~-0.1	0~-0.1
	1000°C*3h
	1550°C*3h
CCS ≥	110°C*24h	35	30	45	40
	1000°C*3h	45	40	60	55
	1550°C*3h	85	80	60	55.5
MOR %	110°C*24h	5.0	4.0	7.0	6.0
	1000°C*3h	6.0	6.0	6.0	5.5
	1550°C*3h	8.0	8.0	9.0	8.0

high alumian refractory cement