A good bituminous paving mix should exhibit stability, durability, flexibility, skid resistance, and workability properties, besides economy.
- Stability is defined as resistance of the paving mix to deformation under load and thus it is a stress which causes a specified strain depending upon anticipated field condition. Stability is a function of friction cohesion.
- Durability is defined as the resistance of the mix against weathering and abrasive actions.
- Flexibility is a property of the mix that measures the level the bending strength.
- Skid resistance is defined as the resistance of the finished pavement against skidding and is function surface texture and bitumen content.
- Workability is the ease with which the mix can be laid and compacted. It is function gradation of aggregates, their shape and texture, bitumen content and its type.
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