High Alumina Morars

Product Description

• Alumina (
  

  Al2O3cap A l sub 2 cap O sub 3

  23
  ) Content: This is the most crucial factor, as it directly influences the mortar's ability to withstand high temperatures and chemical attack. A higher
  

  Al2O3cap A l sub 2 cap O sub 3

  23
  content leads to better refractoriness.
• Maximum Service Temperature: This is the highest temperature the mortar can withstand without significant degradation. It is a critical parameter for selecting the right mortar for a specific application, such as in a steel, glass, or cement plant.
• Cold Crushing Strength: This measures the mortar's mechanical strength before it is exposed to high heat. A higher strength is required for applications with high abrasion or mechanical stress.
• Iron Oxide (
  

  Fe2O3cap F e sub 2 cap O sub 3

  23
  ) Content: A lower iron content is desirable, as iron oxide can lower the refractoriness of the mortar.
• Grain Size: This specification relates to the size of the aggregate particles in the mortar. It is important for achieving a consistent and durable bond when laying refractory bricks.
• Setting Type: High alumina mortars can be classified based on how they set:
  • Air-setting: The mortar hardens at room temperature and typically gains further strength when heated.
  • Ceramic (Heat-setting): The mortar requires heat to achieve its strength and bond.