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Clay Refractory Mortar

September 24, 2018

Clay refractory mortar

Clay refractory mortar are based on hard clay clinker and are combined with soft clay or chemical binder. Clay refractory mortar mainly used in blast furnace, hot blast stove, coke oven, soaking furnace, heat exchanger, boiler and other furnace brick joints and repairs.

As a non-shaped refractory material, clay refractory mortar can prolong the life of the lining, improve the operation rate of the equipment, reduce the labor intensity and promote the refractory production process.

 

Items

Index

NN-30

NN-38

NN-42

NN-45

NN-45P

Al2O3/%   ≧

30

38

42

45

45

Refractoriness /℃   ≥

1620

1680

1700

1720

1720

 

Bending strength after drying /MPa

110℃  ≧

1.0

1.0

1.0

1.0

2.0

1200℃×3h  ≧

3.0

3.0

3.0

3.0

6.0

Refractoriness under load  0.2MPa     ≧

/

1200

Reheat linear hange /%

1200℃×3h

﹣5~﹢1

Bonding time/min

1~3

 

 

Granularity/%

< 1.0mm

100

> 0.5mm  ≤

2

< 0.075mm  ≥

50

Note: If there are special requirements, the bonding time is determined by agreement between the supplier and the buyer.

 

 

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