Calcium Aluminate Cement
Calcium aluminate cement is a hydraulic binder produced from limestone and bauxite, known for its high early strength and resistance to chemical attack. It sets and hardens through hydration reactions, making it suitable for refractory and rapid-repair applications. This product falls under tariff item 2523.90.00 as an 'other hydraulic cement' because it is not classified as Portland, aluminous, slag, or supersulphate cement under the preceding specific headings.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the cement is in clinker form
Cement clinkers are classified separately under heading 2523, and this item specifically covers clinkers of all hydraulic cements.
If the product is specifically identified as aluminous cement
Aluminous cement has its own tariff item, and calcium aluminate cement may be classified there if it meets the definition.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the cement is in a crude or minimally processed state (e.g
• powder or clinker) as per Chapter 25 Note 1, avoiding any added substances that alter its structure
• Declare the product's exact composition to the CBSA, as calcium aluminate cement may be subject to anti-dumping measures if sourced from certain countries
• Keep shipping documents and certificates of origin ready to claim any preferential tariff treatment under Canada's trade agreements
Related Products under Tariff item 2523.90.00
Colored Hydraulic Lime Cement
Colored hydraulic lime cement is a hydraulic binder mixed with iron oxide pigments to achieve specific aesthetic shades for restoration projects. It sets through hydration of free lime and other compounds, providing a durable, breathable material. This product is classified under tariff item 2523.90.00 as 'other hydraulic cement' because it is not a standard Portland or aluminous cement and the added pigments do not exclude it from Chapter 25.
Expansive Hydraulic Cement
Expansive hydraulic cement is a specialized binder containing ettringite-forming agents that counteract shrinkage during curing, making it ideal for prestressed concrete and crack control. It hardens through hydration and expands slightly to improve structural integrity. This product falls under tariff item 2523.90.00 as 'other hydraulic cement' because its unique composition does not match the specific definitions of Portland, aluminous, slag, or supersulphate cement.
High Alumina Cement
High alumina cement is a hydraulic cement produced from bauxite and limestone, offering rapid hardening and high-temperature resistance. It sets and hardens both in air and underwater, making it suitable for refractory and marine applications. This product is classified under tariff item 2523.90.00 as 'other hydraulic cement' because it is not specifically listed as aluminous cement in the subheading, which covers only certain types.
Masonry Hydraulic Cement
Masonry hydraulic cement is a blend of natural cement and limestone, designed for tuckpointing and restoration work with hydraulic setting properties. It provides a durable, breathable mortar that hardens through hydration. This product falls under tariff item 2523.90.00 as 'other hydraulic cement' because it is not a standard Portland or aluminous cement and is distinct from other specific types.
Natural Cement Clinker Ground
Ground natural cement is produced from argillaceous limestone that is kiln-fired and ground, providing hydraulic setting similar to Roman concrete. It is a sustainable alternative for historic restoration and modern construction. This product is classified under tariff item 2523.90.00 as 'other hydraulic cement' because it is not a synthetic Portland or other specific type.
Pozzolanic Hydraulic Cement Blend
Pozzolanic hydraulic cement blend is a composite of Portland clinker (less than 50%), fly ash, and gypsum, which sets through pozzolanic reactions. It offers a low-carbon alternative for concrete production with good durability. This product falls under tariff item 2523.90.00 as 'other hydraulic cement' because its composition does not meet the specific definitions of Portland, aluminous, slag, or supersulphate cement.