Refractory cement CA-80

Items	CA-80E		CA-80G		CA-80A
Refractoriness C	1780-1820
Chemical composition %
Al2O3 min	77
CaO max	20
SiO2 max	0.5
Fe2O3 max	0.5
Na2O+K2O max	0.4
S max	0.1
Specific density g/cm3	3.2-3.3		3.2-3.3		3.2-3.3
Specific surface area m2/kg min	650		650		650
Initial setting time minutes min	30		30		30
Final setting time minutesmax	360		360		360
Rupture strength Mpa
6 hr	3.0		-		-
24 hr	4.5		4.0		4.5
72 hr	5.5		5.0		5.5
Cold crushing strength Mpa
6 hr	10		-		-
24 hr	30		25		30
72 hr	40		30		40
Castable performance	Corundum Castable	Low cement castable	Corundum Castable	Low cement castable	Corundum Castable	Low cement castable
Water addition %	5.2	6.8	5.2	6.8	5.2	6.8
Flow value mm
Initial flow value	200	180	207	180	217	159
30 minutes	185	176	190	171	195	150
60 minutes	177	166	180	164	190	151
Cold crushing strength Mpa
24 hr room temperature	15	15	14	15	14	15
110C dry 24hr	71	86	76	102	67	70
1100C heating 6 hr	51	119	55	118	47	118