Why SEPPE Calcined Bauxite is the Best Aggregate Selection For Anti-skid

Aggregates are critical to the skid-resistance of the antiskid high friction road Surface system. The surface of the aggregate provides the micro-texture, which directly affects the skid resistance. Two of the key properties of aggregates used are polish resistance (generally reported in terms of polished stone value or PSV) and abrasion resistance (aggregate abrasion value or AAV).

The PSV is a measure of how resistant an aggregate is to polishing under traffic wear. The higher the PSV, the better the aggregate can keep its surface texture (micro-texture). AAV is a measure of how resistant the aggregate is to material loss under traffic.

SEPPE Calcined Bauxite is obtained by calcining (heating) superior grade Bauxite at high temperature which removes moisture thereby increasing the alumina content.The characteristics of Calcined Bauxite such as the high alumina content, low iron, grain hardness, toughness, thermal stability and high mechanical strength make it the ideal choice for resin-based systems which must be resistant to skidding and abrasion forces.