Building blocks and bricks
Articles of cement, of concrete or of artificial stone, whether or not reinforced. > Tiles, flagstones, bricks and similar articles: > Building blocks and bricks > Building blocks and bricks
Duty Rate (from China)
Subheadings
Products classified under Tariff item 6810.11.00
Architectural Concrete Screen Blocks
Architectural concrete screen blocks are precast concrete units with decorative geometric openings, used for privacy screens and building facades. They are made from cement, aggregates, and water, and are not reinforced, qualifying them as building blocks of concrete under tariff item 6810.11.00.
Autoclaved Aerated Concrete (AAC) Blocks
Autoclaved aerated concrete (AAC) blocks are lightweight precast concrete units containing air voids, produced with cement, lime, sand, and an expanding agent, then steam-cured under pressure. They are used for wall construction and insulation, and meet the definition of building blocks of concrete under tariff item 6810.11.00.
Cement Sandwich Building Blocks
Cement sandwich building blocks consist of a concrete core with insulating foam layers bonded by cement, used for energy-efficient wall construction. They are composite concrete blocks, not reinforced, and are classifiable as building blocks under tariff item 6810.11.00.
Concrete Hollow Building Blocks
Concrete hollow building blocks are precast units made from Portland cement, aggregates, and water, with hollow cores to reduce weight and cost. They are used for constructing walls in residential and commercial buildings and are standard building blocks of concrete under tariff item 6810.11.00.
Eco-Friendly Recycled Aggregate Concrete Blocks
Eco-friendly recycled aggregate concrete blocks are made from cement and recycled construction waste aggregates, used for sustainable building. They are unreinforced concrete blocks, qualifying as building blocks under tariff item 6810.11.00.
High-Strength Concrete Curb Bricks
High-strength concrete curb bricks are heavy-duty concrete units molded with high cement ratios for use in street curbs and gutters. They are building bricks of concrete, not reinforced, and fall under tariff item 6810.11.00.
Insulated Concrete Form (ICF) Blocks
Insulated concrete form (ICF) blocks combine expanded polystyrene cores with concrete-receiving shells, designed to be filled with concrete on-site for wall construction. When imported as preformed concrete building blocks, they are classifiable under tariff item 6810.11.00.
Lightweight Concrete Building Bricks
Lightweight concrete building bricks are produced with expanded clay aggregates or foam in a cement matrix, making them ideal for partition walls due to reduced weight. They are unreinforced concrete bricks for building purposes, qualifying under tariff item 6810.11.00.
Perforated Concrete Breeze Blocks
Perforated concrete breeze blocks are decorative concrete blocks with perforations for ventilation and screening in architecture. They are unreinforced concrete building blocks, classifiable under tariff item 6810.11.00.
Precast Concrete Partition Bricks
Precast concrete partition bricks are precast units for interior non-load-bearing partitions, often with alignment holes for rods. They are unreinforced concrete building bricks, qualifying under tariff item 6810.11.00.
Reinforced Concrete Interlocking Blocks
Reinforced concrete interlocking blocks are interlocking blocks with embedded steel rebar for enhanced stability in seismic zones, made of vibrated concrete. They are primarily concrete building blocks, and despite the reinforcement, they fall under tariff item 6810.11.00 as building blocks.
Solid Concrete Masonry Units (CMU)
Solid concrete masonry units (CMUs) are dense concrete blocks without voids, molded from cement mixtures for high-strength foundation and retaining walls. They are standard building blocks of concrete, qualifying under tariff item 6810.11.00.
Split-Face Concrete Building Bricks
Split-face concrete building bricks are concrete bricks with a textured, stone-like split face for aesthetic masonry veneers. They are building bricks of concrete, not reinforced, and fall under tariff item 6810.11.00.
Standard 8x8x16 Concrete Blocks
Standard 8x8x16 concrete blocks are nominal 8-inch by 8-inch by 16-inch gray concrete blocks, the industry standard for masonry walls. They are unreinforced concrete building blocks, precisely falling under tariff item 6810.11.00.
Vibrated Concrete Paver Bricks
Vibrated concrete paver bricks are dense, vibrated concrete bricks for pedestrian pavements and driveways, with textured surfaces for grip. When used as building bricks rather than decorative tiles, they fall under tariff item 6810.11.00.