Aluminous cement
Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: > Aluminous cement
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2523.30.00.00
Calcium Aluminate Cement Powder
Calcium aluminate cement powder is an aluminous cement used in rapid-hardening concrete and repair mortars. Classified under HTS 2523.30.00.00 for its aluminous composition providing superior sulfate resistance and fast strength gain. It is typically packaged in 50kg bags for construction applications.
High-Alumina Refractory Cement
High-alumina refractory cement is a hydraulic cement composed primarily of calcium aluminate, designed for high-temperature applications in furnaces and kilns. It falls under HTS 2523.30.00.00 as aluminous cement due to its high alumina content enabling rapid setting and heat resistance. This cement is supplied as a fine powder ready for mixing with water.
Fondu Aluminous Cement
Fondu aluminous cement, also known as fondu cement, is a high-purity calcium aluminate cement for specialty concretes and castables. It meets HTS 2523.30.00.00 criteria as aluminous cement with quick setting properties ideal for precast elements. Supplied in bulk or bagged form without additives.
Sulfuric-Resistant Aluminous Cement
Sulfuric-resistant aluminous cement is formulated for aggressive environments like sewers and wastewater structures. Its high alumina content qualifies it under HTS 2523.30.00.00 as a hydraulic aluminous cement with exceptional chemical durability. Provided as fine powder for on-site mixing.
Rapid-Set Aluminous Cement Clinker
Rapid-set aluminous cement clinker is the intermediate product ground into finished cement, containing high aluminates. Classified in HTS 2523.30.00.00 whether in clinker or powder form as specified for aluminous hydraulic cements. Used by manufacturers for custom blends.
Aluminous Expansion Cement
Aluminous expansion cement generates controlled expansion for precision grouting and anchoring applications. It qualifies under HTS 2523.30.00.00 due to its calcium aluminate base providing hydraulic setting with expansive properties. Packaged for industrial maintenance use.