回转窑用低水泥耐火浇注料

Items	CA-75E	CA-75G	CA-75A
Refractoriness ℃	1710-1750
Chemical composition %
Al2O3	75
CaO max	25
SiO2 max	1.0
Fe2O3 max	0.7
Na2O+K2O max	0.4
S max	0.1
Specific density g/cm3	3.1-3.2	3.1-3.2	3.1-3.2
Specific surface area m2/kg min	600	600	600
Initial setting time minutes min	30	30	30
Final setting time minutes max	360	360	360
Rupture strength Mpa
6 hr	3.0	–	–
24 hr	5.0	5.0	5.0
72 hr	6.0	6.0	6.0
Cold crushing strength Mpa
6 hr	15	–	–
24 hr	35	30	35
72 hr	45	40	45
Castable performance	Corundumcastable	Low cement castable	Corundumcastable	Low cement castable	Corundumcastable	Low cement castable
Water addition %	5.2	6.8	5.2	6.8	5.2	6.8
Flow value mm
Initial flow value	196	178	192	168	220	164
30 minutes	186	175	190	164	203	152
60 minutes	174	168	177	165	193	156
Cold crushing strength Mpa
24 hr room temperature	18	21	21	22	20	20
110℃ dry 24hr	82	115	91	109	83	98
1100℃ heating 6 hr	52	123	49	120	50	116