Cement; portland, other than white, whether or not artificially coloured

HS v2017 Code: 252329

About cement; portland, other than white, whether or not artificially coloured

HS code 252329 covers the classification of portland cement, a widely used construction material that plays a crucial role in the global infrastructure and building industry. Portland cement is a hydraulic binder, meaning it can set and harden when mixed with water, making it an essential component in the production of concrete, mortar, and various other construction applications. This industry's importance is underscored by its significant contribution to economic development and its integral connection to the growth of the construction sector worldwide.

Production process

The production of portland cement involves a multi-step process. The primary raw materials, typically limestone and clay, are extracted, crushed, and then proportioned according to a specific formula. The mixture is then heated to high temperatures, typically around 1,450°C, in a rotary kiln, where it undergoes a process called calcination. This process drives off carbon dioxide, leaving behind a material known as clinker. The clinker is then ground, often with the addition of gypsum, to produce the final portland cement product.

Production inputs

The main inputs required for the production of portland cement include limestone, clay, and other mineral additives, such as gypsum. Additionally, the industry relies on specialized machinery, including crushers, mills, and rotary kilns, as well as a significant amount of energy, typically in the form of fossil fuels, to power the high-temperature calcination process.

Production outputs

The primary output of HS code 252329 is portland cement, which is then used as a key ingredient in the production of 2523 Cement, Lime and Plaster products, including concrete, mortar, and various other construction materials. These 2523 Cement, Lime and Plaster products are essential for the construction of buildings, infrastructure, and a wide range of other structures, making the cement industry a vital component of the broader construction sector.

Revisions to 252329

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 252329. The most recent 1 version of this code (252329) is in the HS v2022 system:

This page shows a legacy version of code 252329 ( HS v2017).

Older versions

Family tree for cement; portland, other than white, whether or not artificially coloured

    graph LR
    A["<a href='/classifications/hs/v2017/25'>25: Salt; sulphur; earths, stone; plastering materials, lime and cement</a>"]
A --> B["<a href='/classifications/hs/v2017/2523'>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/v2017/252329'>252329: Cement; portland, other than white, whether or not artificially coloured</a>"]

    B --> D["<a href='/classifications/hs/v2017/252310'>252310: Cement clinkers (whether or not coloured)</a>"]
B --> E["<a href='/classifications/hs/v2017/252321'>252321: Cement; portland, white, whether or not artificially coloured</a>"]
B --> F["<a href='/classifications/hs/v2017/252330'>252330: Cement; aluminous (ciment fondu), whether or not coloured or in the form of clinkers</a>"]
B --> G["<a href='/classifications/hs/v2017/252390'>252390: Cement; hydraulic kinds n.e.c. in heading no. 2523</a>"]

    

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  %% Apply classes
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class C level6
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class E level6
class F level6
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