Aluminate Cement (CA-50)

Aluminate Cement (CA-50) - details see: https://www.buildingsupplieshub.com/aluminate-cement-ca-50-10083560

Place of Origin: China (Mainland)

Color: Grey

Feature: Refractory

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Character & Uses

The main minerals in aluminate are monocalcium aluminate(CA),monocalcium dialuminate(CA2),"12:7" calcium aluminate(C12A7), gehlenite(C2AS), minor perovskite(CT) and dicalcium ferrite-(C2F). Among these minerals, CA hydrates rapidly and sets normally with characters of rapid hardening and early strengthening; CA2 hydrates slowly and contributes to late strength. The compressive strength at 3d for the cement reaches about 90% if the maximum strength, thus in the national standard, the compressive and flexual strengths at 1d, 3d are specified to determine cement grades.

Products Quality

		GB201-2000 CA-50	CA-50-G6(#625)	CA-50-G7 (#725)
Chemical compostion
Al₂O₃	%	≥50,<60	≥50,<60
SiO₂		≤8.0	≤8.0
Fe₂O₃		≤2.5	≤2.5
R₂O		≤0.4	≤0.4
S		(≤0.1)	——
Cl		(≤0.1)	——
Physical properties
Fineness
0.045mm residue	%	(<20)	——
Blaine	m²/kg	≥300	≤300
Setiing time
Initial	min	≥30	≥30
Final	h	≤6	≤6
Flexural Strength
6h	Mpa	(3.0)	——
1d		5.5	6	6.5
3d		6.5	7	7.5
Compressive Strength
6h	Mpa	(20)	——
1d		40	45	50
3d		50	55	60