Cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers

HS v2022 Code: 252330

About cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers

HS code 252330 covers aluminous cement, also known as 'ciment fondu'. This specialized type of cement is used in a variety of applications where high early strength, resistance to chemical attack, and tolerance to extreme temperatures are required. As a key construction material, aluminous cement plays an important role in the broader infrastructure and building industries, contributing to the development of modern, durable structures.

Production process

Aluminous cement is produced by fusing a mixture of limestone, bauxite, and other mineral additives at high temperatures, typically around 1400°C. The resulting molten material is then rapidly cooled to form clinkers, which are subsequently ground into a fine powder. This production process differs from that of ordinary Portland cement, which is made by heating a mixture of limestone and clay at lower temperatures.

Production inputs

The main raw materials required for aluminous cement production are limestone, bauxite, and other mineral additives such as iron oxide and silica. Specialized high-temperature furnaces and grinding equipment are also essential for the manufacturing process. Energy, in the form of electricity or fossil fuels, is another significant input for the production of aluminous cement.

Production outputs

Aluminous cement is primarily used in applications where high early strength, resistance to chemical attack, and tolerance to extreme temperatures are required, such as in refractory linings, high-performance concrete, and specialized construction projects. The output of HS code 252330 may be consumed by industries covered under 6815 Articles of stone, plaster, cement, asbestos, mica or similar materials, 6901 Bricks, blocks, tiles and other ceramic goods of siliceous fossil meals or of similar siliceous earths, and 6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, other than those of siliceous fossil meals or similar siliceous earths.

Revisions to 252330

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 252330. The most recent 1 version of this code (252330) is in the HS v2022 system (this version):

This page shows the most recent version of code 252330.

Family tree for cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers

    graph LR
    A["<a href='/classifications/hs/v2022/25'>25: Salt; sulphur; earths, stone; plastering materials, lime and cement</a>"]
A --> B["<a href='/classifications/hs/v2022/2523'>2523: Portland cement, aluminous cement (ciment fondu), slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers</a>"]
B --> C["<a href='/classifications/hs/v2022/252330'>252330: Cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers</a>"]

    B --> D["<a href='/classifications/hs/v2022/252310'>252310: Cement clinkers (whether or not coloured)</a>"]
B --> E["<a href='/classifications/hs/v2022/252321'>252321: Cement; portland, white, whether or not artificially coloured</a>"]
B --> F["<a href='/classifications/hs/v2022/252329'>252329: Cement; portland, other than white, whether or not artificially coloured</a>"]
B --> G["<a href='/classifications/hs/v2022/252390'>252390: Cement; hydraulic kinds n.e.c. in heading no. 2523</a>"]

    

    %% Color coordination by level

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    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight