Concrete Hollow Building Blocks
These are precast hollow blocks made from Portland cement, aggregates, and water, used primarily for constructing walls in residential and commercial buildings. They fall under HTS 6810.11.00 as building blocks of concrete, designed for load-bearing and non-load-bearing masonry applications.
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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 made of artificial stone like synthetic marble
Artificial stone blocks are classified under 6810.19 rather than concrete-specific 6810.11.
If fired clay or ceramic construction bricks
Clay-based refractory bricks fall under Chapter 69, not cement/concrete articles in Chapter 68.
If primarily steel-reinforced structural components
Steel-dominated structures are classified by metal content in Chapter 73, not as concrete blocks.
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Import Tips & Compliance
• Verify compressive strength certifications to meet building codes like ASTM C90 for hollow concrete blocks
• Ensure documentation includes material composition to avoid misclassification as artificial stone products
• Inspect for reinforcement; unreinforced blocks stay in 6810.11.00, but reinforced may shift to other subheadings
Related Products under HTS 6810.11.00
Lightweight Concrete Building Bricks
Lightweight bricks produced with expanded clay aggregates or foam in a cement matrix, ideal for partition walls due to reduced weight. They qualify under HTS 6810.11.00 as concrete bricks for building purposes.
Autoclaved Aerated Concrete (AAC) Blocks
AAC blocks are lightweight, precast concrete with air-entraining agents, steam-cured for insulation and fire resistance in modern buildings. HTS 6810.11.00 covers these as concrete building blocks.
Cement Sandwich Building Blocks
Sandwich blocks with a concrete core and insulating foam layers bonded by cement, used for energy-efficient walls. Classified in HTS 6810.11.00 as composite concrete building blocks.
Vibrated Concrete Paver Bricks
Dense, vibrated concrete bricks for pedestrian pavements and driveways, with textured surfaces for grip. Under HTS 6810.11.00 when used as building bricks rather than decorative tiles.
High-Strength Concrete Curb Bricks
Heavy-duty concrete bricks for street curbs and gutters, molded with high cement ratios for durability. Fits HTS 6810.11.00 as specialized building bricks.
Precast Concrete Partition Bricks
Precast bricks for interior non-load-bearing partitions, often with alignment holes for rods. HTS 6810.11.00 for concrete building blocks.