Product Catalog

 Produced by industrial alumina and high purity burnt lime from advanced rotary kiln sintering process and high fine grinding system with reasonable design of cement phase and accurate control of sintering process and particle size distribution, calcium aluminate cement has good workability, excellent performance at high temperature and maximum consistency.

 CA70 and CA70W do not contain any  additives and ɑ-Al2O3. CA70 has moderate setting times and strength development; while CA70W has short setting times and higher early strength fitting for low temperature environment especially for wintertime and other urgent occasion such as rapid installation or emergency maintenance etc.


    CA70S has good fluidity and long workable time; the castables made by this product have good workability and excellent mechanical strength, especially fit for being used in high temperature environment or hot summer.

    CA71 does not contain any  additives and ɑ-Al2O3,with higher alumina content,lower demand for water, excellent flowability, and high strength development,is quite suitable for low cement castables, low moisture castable& ultra-low cement castables.

                                                 Performance Index of CA70 Series

Product

CA70

CA70W

CA70S

CA71

Setting time comparison

Moderate

Short

Longer

Long

Properties Determined according to GB201-2000

Chemical Composition (%)

SiO2

≤0.5

≤0.5

≤0.5

≤0.5

Al2O3

68.5-70.5

68.5-70.5

68.5-70.5

69.5-71.5

Fe2O3

≤0.2

≤0.2

≤0.2

≤0.2

CaO

28.5-30.5

28.5-30.5

28.5-30.5

27.5-29.5

MgO

≤0.4

≤0.4

≤0.4

≤0.4

R2O

≤0.4

≤0.4

≤0.4

≤0.4

Fineness

d50μm

11-14

8-11

6-9

10-13

-45μm%

≤8.0

≤5.0

≤5.0

≤8.0

Setting Time (min)

初凝 IS

120-180

30-90

180-240

150-210

终凝 FS

150-240

90-180

240-330

210-300

胶砂强度 Strength (ISO) (MPa)

Flexuralstrength (1d)

7.5-10.0

8.0-10.5

8.0-10.5

8.5-11.0

Flexuralstrength(3d)

10.0-12.0

10.5-12.5

10.5-12.5

11.0-12.5

Compressive strength (1d)

40-50

45-55

45-55

50-60

Compressive strength (3d)

45-55

50-60

50-60

55-65

Testing Properties in Castables

Setting Time (min)

20

60-90

30-60

240-300

90-120

35

30-50

20-40

60-120

60-90

Vibration Flow (mm) (20°C)

Initial flow

265-275

250-260

270-280

270-280

10分钟流动值F10

255-265

245-255

260-270

260-270

30分钟流动值F30

235-245

235-245

245-255

245-255

60分钟流动值F60

230-240

210-220

235-245

235-245

Flexural Strength (MPa)

20×24h

4.5-5.5

4.5-5.5

4.5-5.5

4.5-5.5

110×24h

10.0-11.5

10.0-11.5

10.0-11.5

10.0-11.5

1100×4h

12.0-14.0

12.0-14.0

12.0-14.0

12.0-14.0

Compressive Strength (MPa)

20×24h

35-45

35-45

35-45

35-45

110×24h

85-95

85-95

85-95

85-95

1100×4h

100-120

100-120

100-120

100-120

Linear Change (%)

1100×4h

≤-0.25

≤-0.25

≤-0.25

≤-0.25

Remark:

1) Value in the table is among general control range, actual index is subject to products’ inspection report.

2) The other quality performance metrics not listed in the table can be tested according to consumers’  

    requirements.

3) For the special demand of quality index, products can be provided according to consumers requirements.

4) Castables experimental data in the table are for reference only.


Links
naicai
Zhengzhou Jinghua Special Cements Co., Ltd.
Address:Daye town of dengfeng city of henan province
Tel:0371-62930968
Fax:0371-62936628

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