Asfalti

Asfalti is a term that generally refers to asphalt or bitumen, a sticky, black, and highly viscous liquid or semi-solid form of petroleum. It is commonly used in construction, particularly for paving roads, highways, and other surfaces. The term is derived from the Latin word "asphaltus," which itself comes from the Greek "asphaltos."

The primary component of asphalt is bitumen, a naturally occurring substance or a byproduct of petroleum refining. Bitumen is a thermoplastic material, meaning it softens when heated and solidifies when cooled. This property makes it ideal for road construction, as it can be mixed with aggregates like gravel and sand at elevated temperatures to create a durable and flexible pavement material.

Asphalt pavements are widely recognized for their smooth riding surface, relatively low cost of construction and maintenance, and ability to withstand heavy traffic loads. However, they can be susceptible to damage from extreme temperatures, such as rutting in hot weather and cracking in cold weather. Environmental considerations related to asphalt production and disposal are also important aspects of its use.

Beyond road construction, asphalt is also used in roofing materials, waterproofing applications, and as an adhesive. The specific properties and applications of asphalt can vary depending on its source and the refining process it undergoes. Research continues to explore modifications and alternatives to improve the performance and sustainability of asphalt-based materials.