Aluminate cement production using natural bauxite and limestone suitable preparation of raw material, the rotary kiln calcination mature material, then cement made by grinding, China once called alumina cement and high alumina cement, is in accordance with the provisions of the new national standard GB201-2000 called aluminate cement.

The main mineral composition of aluminate cement as a calcium aluminate (CA), two a calcium aluminate (CA2) and seven aluminum acid calcium twelve small (C12A7), calcium (C2AS Huang Changshi) and a small amount of perovskite (CT), two (C2F) of calcium ferrite. The (CA) mineral hydration speed, condensation of normal, has the characteristics of rapid hardening, early strength. While the CA2 hydration speed is slow, but later strength grows larger. This cement three day compressive strength can reach the maximum strength of around 90%. Therefore, the quality standards, to a three day compressive strength, flexural strength to determine its grade.

Aluminate cement has good high temperature performance, can still maintain a relatively high strength at high temperature, and with the increase of CA2 content, the high temperature also increased, therefore, it is suitable for use as a binder preparing all kinds of refractory castables. According to the different grade of refractory aggregate, can be made by using temperature refractory castables below 1400 ℃.

For specifications

CA50-G5 Ca50-G9

Properties and uses:

Brand

Type

The ore phase

Properties and uses

The main mineral phase

Secondary phase

CA50-G5

Universal type

CA

CA2

C12A7

C2AS

CT

C2F

1, the main mineral phase is CA (a calcium aluminate).

2, CA mineral water quickly, normal setting time, has the characteristics of rapid hardening, early strength.

3, good high temperature performance.

4, high flexural, compressive strength.

5, the binder for refractory, retarder of building mortar.

6, can be used to repair, looting, erosion and winter construction projects and other special needs.

Physical and chemical indicators:

CA50

(GB201-2000)

CA50-G5

(equivalent to #525)

Chemical composition

Al2O3

SiO2

Fe2O3

R2O

S (Quan Liu)

Cl

%

50 60

8

2.5

0.4

≤ 0.1*

≤ 0.1*

55

8

2.5

0.4

*

*

Fineness

0.045 sieve residue

%

< 20*

*

The specific surface area

M2/kg

300

300

Setting time

The initial setting

H:min

≥ 0:30

≥ 0:30

The final setting

≤ 6:00

≤ 6:00

Flexural strength

6H

MPa

3.0*

*

1D

5.5

5.5

3D

6.5

6.5

Compressive strength

6H

MPa

20*

*

1D

40

40

3D

50

50

Properties and uses:

Brand

Type

The ore phase

Properties and uses

The main mineral phase

Secondary phase

CA50-G9

High strength

CA

CA2

CT

C2AS

1, with CA (a calcium aluminate) as the main mineral phase.

2, CA mineral water quickly, normal setting time, has the characteristics of rapid hardening, early strength.

3, the mineral reasonable combination of the setting time is more, namely the initial setting time and the final setting time is shortened, initial, final time interval can be shortened, the construction time enough in the cement used with as little as possible maintenance time.

4, the performance and the strength is greatly superior to other aluminate cement.

5, the binder for refractory, retarder of building mortar.

6, in a foreign country for improving construction speed, the fast building materials in building decoration, it can improve work efficiency, shorten the construction period, save time.

7, can be used to repair, looting, erosion and winter construction projects and other special needs.

Physical and chemical indicators:

CA50

(GB201-2000)

CA50-G9

(equivalent to #925)

Chemical composition

Al2O3

SiO2

Fe2O3

R2O

S (Quan Liu)

Cl

%

50 60

8

2.5

0.4

≤ 0.1*

≤ 0.1*

55

6

2.5

0.4

*

*

Fineness

0.045 sieve residue

%

< 20*

*

The specific surface area

M2/kg

300

400

Setting time

The initial setting

Hr:min

≥ 0:30

≥ 1:30

The final setting

≤ 6:00

≤ 6:00

Flexural strength

6H

MPa

3.0*

*

1D

5.5

8

3D

6.5

10

Compressive strength

6H

MPa

20*

*

1D

40

70

3D

50

80