Refractory castable

Product

High strength alkali-resistant refractory castables

Special alkali-and acid-resistant refractory castables(provincial new product)

High temperature alkali-resistant refractory castables

Brand

JC-13NL

JC-T130

JC-14N

Maximum service temperature

1300

1350

1400

Bulk density     (kg/m³⁾

110?漯span>×24h≥

2100

2200

2200

Chemical composition (%)

Al₂O₃≤

48

48

≥45

SiO₂≥

50

45

??

Cold crushing strength(MPa)

110?漯span>×24≥

70

80

80

1100?漯span>×3h≥

70

80

80

Cold modulus of ruptuer   (MPa)

110?漯span>×24≥

7

8

8

1100?漯span>×3h≥

7

8

8

Linear change after heating(%)

1100?漯span>×3h≥

-0.1~-0.5

-0.1~-0.3

+0.4~-0.4

Thermal conductivity (W/(m.k))

350?漯span>≤

0.87

0.90

0.90

Test method of alkali resistance   JC/T808-1987

First grade

First grade

Second grade

Test method of alkali resistance (%)

JC/T808-1987

?M

94

?M

Reference water addition for construction(%)

6.5~7.5

6~7

6~7

Construction method

Vibration

Service area

1-3stage Preheater

It is used in the new type dry kilns capable of incinerating garbage.The service areas are the same of that of - 13NL,as well as flue,lower part of chimney,monolithic working lining,etc.

An updating product of JC-13NL

Properties

1??-13NL??Alkali cracking resistant,high strength,energy-saving,good monolithic property.                                                                                                                              2??-T130:Alkali and acid resistant ,better performance and longer campaign life than -13NL                                                                            3??Refractory steel fiber can be added as request and "steel fiber reinforced" shoud be added in front of the product name,and the brand name shoud be JC-13NLF,-T130F and -14NF.                                                                                                                                                      4??See the construction techniques for refernce.