3816.00.10.00 - Dolomite ramming mix

This HTS category, 3816.00.10.00, specifically covers dolomite ramming mix. Ramming mixes are essential materials used in the construction and repair of high-temperature furnaces and kilns. They are characterized by their ability to be compacted into place, forming a dense, monolithic lining that can withstand extreme heat and chemical attack. The defining component of this classification is the presence of dolomite, a mineral composed of calcium magnesium carbonate.

While the parent category 3816.00 encompasses various refractory cements, mortars, concretes, and similar compositions, this subcategory narrows the scope to a specific type: dolomite ramming mix. This distinguishes it from other materials within heading 3816, such as those based on alumina, silica, or other refractory binders, which would fall under the sibling category 3816.00.20. The key distinguishing factor is the primary refractory component being dolomite, used in a form suitable for ramming or tamping into furnace linings.

As a leaf node, 3816.00.10.00 does not have further subdivisions. Therefore, classification within this code is determined by the presence of dolomite as the principal constituent and its intended use as a ramming mix for high-temperature applications. Examples include pre-mixed granular materials designed for manual or mechanical compaction to form refractory linings in steelmaking furnaces, cement kilns, and other industrial high-temperature environments.