Bituminous mixtures based on natural and artificial stone materials and bitumen, natural asphalt or related substances as a binder

cpc code 37940 covers the production of bituminous mixtures, which are a crucial component in the construction and maintenance of roads, highways, and other transportation infrastructure. These materials play a vital role in the broader economy, enabling the efficient movement of goods and people across the country. The bituminous mixtures described by this code are composed of natural and artificial stone materials, as well as bitumen, natural asphalt, or related substances that serve as a binder, creating a durable and weather-resistant surface for various paving applications.

The production of bituminous mixtures involves several key steps. First, the raw materials, including aggregates (such as crushed stone, gravel, or sand) and the bituminous binder, are carefully selected and measured. These components are then heated and mixed together in specialized equipment, such as asphalt plants or batch mixers, to create a homogeneous blend. The resulting mixture is then transported to the construction site and laid down using paving machines, where it is compacted to achieve the desired density and surface finish.

The main inputs required for the production of bituminous mixtures under cpc code 37940 include aggregates (such as 14210 Gravel, sand, clays and kaolin, 14220 Limestone, gypsum, chalk and dolomite, and 14230 Slate), bitumen, and natural asphalt or related substances. Additionally, specialized equipment, such as asphalt plants, batch mixers, and paving machines, are essential for the manufacturing and application of these materials.

The primary output of cpc code 37940 is the bituminous mixture itself, which is then used in the construction and maintenance of various transportation infrastructure, such as roads, highways, and parking lots. These bituminous mixtures may be further consumed by industries covered under 54210 Construction of roads and motorways and 54220 Construction of railways and underground railways.