Henan RuiHeng New material Co., Ltd.|Alumina Cement

1.Description：

Alumina cement is refractory cement consisting predominantly of hydraulic aluminates. It is also called bauxite cement,high alumina cement,aluminate cement.

2.Characteristics：

Alumina cement characterized with high refractoriness, high-temperature service,good resistance to corrosion, high wear resistance, high thermal shock stability.

3.Application：

Alumina cement is used in rush repairs, leakage stopping, resistance to sulfate attack，sulfate corrosion resistance and high temperature proof.

4.Specification：

Items		Unit	Index
Items		Unit	A600	A700	A900
Chemical Composition	Al2O3	%	50-60	51-60	53.0 min
	CaO	%	33.00 min	33.00 min	33.00 min
	SiO2	%	8.00 max	7.50 max	5.50 max
	Fe2O3	%	2.50 max	2.50 max	2.50 max
	TiO2	%	0.40 max	0.40 max	0.40 max
Specific Surface Area		cm2/kg	3000 min	3200 min	3500 min
Beginning Set		min	45 min	60 min	90 min
Ending Set		hour	6 max	6 max	6 max
Bending Strength	1 day	Mpa	6.00 min	6.50 min	8.0 min
Bending Strength	3 day	Mpa	7.00 min	7.50 min	10.00 min
Compressive Strength	1 day	Mpa	45.00 min	55.00 min	72.00 min
Compressive Strength	3 day	Mpa	55.00 min	60.00 min	82.00 min
Refractories		℃	1350	1350	1350

Items			Unit	Index
Items			Unit	CA-70	CA-80
Chemical Composition	Al2O3		%	68.50-72.00	78.50-81.00
	CaO		%	28.0-31.50	17.00-20.00
	SiO2		%	0.50 max	0.50 max
	Fe2O3		%	0.50 max	0.40 max
	K2O Na2O		%	0.50 max	0.40 max
Specific Surface Area			cm2/kg	5000 min	7000 min
Beginning Set			min	40-150	30 min
Ending Set			h	6 max	6 max
Bending Strength		24h	Mpa	7.0 min	5.50 min
Compressive Strength		24h	Mpa	45.0 min	40.00 min
Refractories			℃	1560 min	1790 min