Refractory Cement CA70

• Al2O3(%): 68.5-70.5
• CaO(%): 28.5-30.5
• Compressive Strength (72hrs) (MPa):45-55
• Final Setting Time (min): 150-240
• Certification: ISO9001/ISO14001/ISO45001/ISO50001
• Sample: testing of sample is available

Description of Refractory Cement CA70

High purity calcium aluminate cement CA70 contain only calcium aluminates.
The high calcium aluminate content provides characteristics ideally suited for refractory applications where rapid hardening combined with excellent mechanical resistance and high temperature performance are required. So they are widely recommended for high performance refractories such as low cement, ultra low cement castables.

Kerui Refractory Cement CA70 Technical Data Sheet

Chemical Analysis

SiO2,%	Al2O3, %	Fe2O3, %	CaO, %	MgO, %	R2O, %	S, %	CL, %
≤	≥	≤	-	-	≤	≤	≤
0.1	68	0.7	28.5-29.5	-	0.4	0.1	0.06

Typical Physical Properties

Methods		Units			Usual range	Specification limit
Fineness		d50, μm			11-4	≤14
		325M, %			-	≤8
		S, m²/kg			380-420	≥350
Setting Time		Initial Setting Time, min			180-240	≥30
		Final Setting Time, min			240-300	≤240
Strength (ISO)		Flexural Strength, Mpa		1d	9-11	≥5
				3d	11-12	≥6
		Compressive Strength, Mpa		1d	45-55	≥30
				3d	55-65	≥40
Refractoriness, ℃					1580-1620
Workable time					Moderate