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High alumina cement

Release time:2019/4/5 21:04:40

CA-50

product			CA50F	A600	A700	A900	CA50R
Chemical Composition (%)	SiO₂		≤8.0	≤7.8	≤7.5	≤5.5	≤7.0
	Al₂O₃		≥50.0	≥50.0	≥51.0	≥53.5	≥52.0
	Fe₂O₃		≤2.5	≤2.5	≤2.5	≤2.5	≤2.5
	R₂O		≤0.4	≤0.4	≤0.4	≤0.4	≤0.4
	S		≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
	Cl		≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
45µm residue (%)			≤20	≤15	≤12	≤8	≤8
Blaine (m²/kg)			≥300	≥300	≥320	≥350	≥350
Initial Setting (min)			≥30	≥45	≥60	≥90	≥30
Final Setting (h)			≤6	≤6	≤6	≤6	≤6
Flexural strength (MPa)		6h	——	——	——	——	≥3.0
		1d	≥5.5	≥6.0	≥6.5	≥8.0	≥7.0
		3d	≥6.5	≥7.0	≥7.5	≥10.0	≥8.0
Compressive strength (MPa)		6h	——	——	——	——	≥30
		1d	≥40	≥45	≥55	≥72	≥60
		3d	≥50	≥55	≥65	≥82	≥70

Aluminate Cement CA-70/CA-80

product		CA70	CA80	CA70S	CA80S	CA70W	CA80W
Chemical Composition (%)	SiO₂	≤1.0	≤0.5	≤1.0	≤0.5	≤1.0	≤0.5
	Al₂O₃	≥68.0	≥77.0	≥68.0	≥77.0	≥68.0	≥77.0
	Fe₂O₃	≤0.7	≤0.5	≤0.7	≤0.5	≤0.7	≤0.5
	R₂O	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4
	S	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
	Cl	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
45µm residue (%)		≤5	≤5	≤5	≤5	≤5	≤5
Blaine (m²/kg)		≥400	≥450	≥400	≥450	≥400	≥450
Initial Setting (min)		≥45	≥45	≥60	≥60	≥30	≥30
Final Setting (h)		≤6	≤6	≤6	≤6	≤6	≤6
Flexural strength (MPa)	6h	——	——	——	——	——	——
	1d	≥5.5	≥5.0	≥5.5	≥5.0	≥5.5	≥5.0
	3d	≥6.5	≥6.0	≥6.5	≥6.0	≥6.5	≥6.0
Compressive strength (MPa)	6h	——	——	——	——	——	——
	1d	≥40	≥30	≥40	≥30	≥40	≥30
	3d	≥50	≥40	≥50	≥40	≥50	≥40

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