Kaiyuan Refractories

A professional company produces and sales refractory materials for industry of cement, iron & steel ,non- ferrous metal and glass etc.
Home » Products » Monolithic refractory » High alumina refractory cement CA70
Share to:

High alumina refractory cement CA70

  • CA70
  • KAIYUAN
  • 38160
Quantity:

Product Description

CA70 Refractory Cement

Brand

CA70

CA70W

CA70S

CA71

Binding time

medium

short

longer

long

 Cement   Properties as per GB201-2000 standard

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

Initial   setting time minutes

120-180

30-90

180-240

150-210

Final   setting time minutes

150-240

90-180

240-330

210-300

1day MOR

7.5-10.0

8.0-10.5

8.0-10.5

8.5-11.0

3 days MOR

10.0-12.0

10.5-12.5

10.5-12.5

11.0-12.5

1day CCS

40-50

45-55

45-55

50-60

3 days CCS

45-55

50-60

50-60

55-65

Castable   Properties

Setting Timeminutes

20

60-90

30-60

240-300

90-120

35

30-50

20-40

60-120

60-90

Vibration   Flowmm)(20

Initial   vibration flow

265-275

250-260

270-280

270-280

10 minutes

255-265

245-255

260-270

260-270

30 minutes

235-245

235-245

245-255

245-255

60 minutes

230-240

210-220

235-245

235-245

Flexural   StrengthMPa

20×24hrs

4.5-5.5

4.5-5.5

4.5-5.5

4.5-5.5

110×24hrs

10.0-11.5

10.0-11.5

10.0-11.5

10.0-11.5

1100×4hrs

12.0-14.0

12.0-14.0

12.0-14.0

12.0-14.0

Compressive   StrengthMPa

20×24hrs

35-45

35-45

35-45

35-45

110×24hrs

85-95

85-95

85-95

85-95

1100×4hrs

100-120

100-120

100-120

100-120

 Linear   Change%

1100×4h

≤-0.25

≤-0.25

≤-0.25

≤-0.25

  • CA70 and CA70W do not contain any additives and ɑ-Al2O3. CA70W has a faster setting      and hardening speed and higher early strength than CA70, CA70W is suitable      for low ambient temperature conditions in winter, and other occasions      requiring ra pid construction and emergency repairs.

  • CA70S has good fluidity and      long construction time. The prepared castable has ideal construction      performance and excellent mechanical strength performance, especially      suitable for high temperature environment in summer.

  • CA71 does not contain any      additives and ɑ-Al2O3. With high alumina content, very low water demand,      good fluidity and high mechanical strength. It is suitable for the      production of low cement, ultra low cement, and low water demand castable.      


Subsidiary

Quick Link

Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Chaoyanggou, Dengfeng city, Henan, China
  +86-371-53688552
  +86-371-53688078
 +86-13592427095 ( WhatsApp/Wechat )
  sales@kaiyuanref.com    

Send Us A Message