High Alumina Cement for sale

$high alumina refractory cement price$

High Alumina Cement

High alumina cement has low pH

It has high refractoriness

It has high durability in sulfuric acid

It hardens rapidly

It is less reactant than alumina or hydraulic lime

It acts as a bonding material when added in refractory castables

It has high resistance to chemical corrosion.

Brief Description Of High Alumina Cement

High alumina cement is an excellent unshaped refractory material for sale in Rongsheng Company, whose main chemical composition of High Alumina Cement includes calcium aluminate, plus about 50% of the alumina.High alumina brick is called bauxite cement before ,Which is a kind of hydraulic binder, being produced after the calcining and grinding with the bauxite and limestone as the raw material. So high alumina cement is also called calcium aluminate cement. High Alumina Cement is mainly manufacturered by rotary kiln sintering, arc furnace melting method and reverberatory furnace melting method, etc.

Specification

High Alumina Cement
Cement Model		CA-65	CA-68	CA-70	CA-75	CA-80
Chemical Composition (%)	Al2O3	64-66	67-69	69-71	73-75	77-80
	CaO	32-34	29-31	27-29	23-25	18-20
	SiO2	1.8	1.2	0.3	0.3	0.3
	Fe2O3	0.6	0.6	0.3	0.3	0.3
Specific Surface (cm2/g)		4500	4500	5000	5500	7000
Setting time (h:min)	Initial setting (min)	0:40	0:40	0:40	0:45	0:45
Setting time (h:min)	Final Setting (min)	8:00	8:00	10:00	10:00	10:00
Cold Modulus of Rupture (MPa)	24 hour	6.0min	6.0min	6.0min	6.0min	5.0min
Cold Modulus of Rupture (MPa)	72 hour	8.0min	8.0min	8.0min	8.0min	6.0min
Cold Crushing Strength (Mpa)	24hour	45.0min	45.0min	45.0min	45.0min	35.0min
Cold Crushing Strength (Mpa)	72hour	70.0min	70.0min	70.0min	70.0min	60.0min
Refractoriness (°C)		1680	1710	1730	1750	1770

Application

It acts as a bonding material when added in refractory castables because it forms ceramic bond at high temperatures.

It widely is used to formulate some special-purpose cement such as gypsum alumina expansive cement and self-stressing cement, etc.

It usually applied for some special requirement projects, such as rushing construction, repairing, resisting sulfate erosion and winter construction, etc.

Attention in Using

(1) It can’t be mixed with lime and Portland cement, so the mixing equipment must be cleaned.
(2) It can’t be used for projects that direct contact the alkaline solution.
(3) It is not used in mass concrete, and it can’t contact the non-hardened Portland cement.
(4) Without the test, it can’t be added to any additional content.