Clay refractory mortar

Clay refractory mortar


Classification:

Refractory mortar is an unshaped refractory material used as a joint of refractory masonry, also known as joint material. It is composed of a certain proportion of refractory powder, binder and admixture, and is adjusted into a slurry by adding water or liquid binder.
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Product Details


Refractory mortar is an unshaped refractory material used as a joint of refractory masonry, also known as joint material. It is composed of a certain proportion of refractory powder, binder and admixture, and is adjusted into a slurry by adding water or liquid binder.

 

Clay-based refractory mortar is based on hard clay clinker and is combined with soft clay or chemical binder.

It is mainly used for joints and repairs of furnaces made of clay bricks such as blast furnaces, hot blast stoves and boilers.

 

Characteristic:

1. Good plasticity and convenient construction;

2. Strong bonding strength and corrosion resistance;

3. High refractoriness;

4. Good resistance to slag invasion;

5. Good thermal spalling.

 

Item NN-38 NN-42 NN-45 NN-45P
Al2O3(%)   ≥ 38 42 45 45
Refractoriness(℃) ≥ 1680 1700 1720 1720
Linear change rate  1200℃×3h(%) -5~+1
Refractoriness under load 0.2MP(℃) ≥ / 1200
Bending strength(MPa)≥ After drying at 110℃ 1 2
After burning 1200℃×3h 3 6
Granularity(%) <1.0mm 100
>0.5mm  ≤ 2
<0.075mm ≥ 50
Bonding time(min) 1-3

 

Clay refractory mortar

 

Key words:

Clay refractory mortar