Bituminous binders, also known as asphalt binders or asphaltic binders, refer to a group of materials used in the construction industry for the production of asphalt pavement. These binders are derived from bitumen, a black, viscous, and sticky petroleum-based substance. Bituminous binders are mixed with aggregates, such as stone, sand, or gravel, to create asphalt concrete, which is commonly used for road construction, pavements, and other civil engineering projects.
Bituminous binders are graded based on their physical properties, such as viscosity, temperature susceptibility, and stiffness. The grading system allows engineers and contractors to select binders that are best suited for specific climate conditions and performance requirements. Different grades of bituminous binders offer different levels of durability, flexibility, and resistance to deformation, thus ensuring the longevity and sustainability of asphalt structures.
1. National Asphalt Pavement Association (NAPA) – Bituminous binder overview
2. Federal Highway Administration (FHWA) – Asphalt Binders
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