Refractory Cement CA75

• Al2O3(%): 74.5-75.5
• CaO(%): 23.5-25.5
• Compressive Strength (72hrs) (MPa):60-65
• Final Setting Time (min): 90-180

Description of Refractory Cement CA75

CA75 are customized products meeting the particular compound design demand. lts performance is between CA70 and CA80.

Kerui Refractory Cement CA75

Chemical Analysis

SiO2,%	Al2O3, %	Fe2O3, %	CaO, %	MgO, %	R2O, %	S, %	CL, %
≤	≥	≤	-	-	≤	≤	≤
0.5	73	0.5	21-23	-	0.4	0.1	0.06

Typical Physical Properties

Methods		Units			Usual range	Specification limit
Fineness		d50, μm			6-9	≤10
		325M, %			-	≤5
		S, m²/kg			420-480	≥400
Setting Time		Initial Setting Time, min			150-200	≥150
		Final Setting Time, min			240-300	≤360
Strength (ISO)		Flexural Strength, Mpa		1d	6.5-8.5	≥4
				3d	8.5-10.5	≥5
		Compressive Strength, Mpa		1d	42-52	≥25
				3d	52-62	≥30
Refractoriness, ℃					1750-1800
Workable time					Moderate