Importance of compaction, Part 2: Roller selection

Importance of compaction, Part 2: Roller selection

THE IMPORTANCE OF COMPACTION. PART 2: ROLLER SELECTION Roller selection: Thanks to on-going research and development in compaction technology, layers of granular and stabilised material are usually compacted using single-drum vibrating rollers.  Pneumatic tyred rollers (PTRs) are used extensively to compact layers of hot mix asphalt but confined to thin layers of fine-grained sandy material…

Importance of compaction: Part 1 – General

Importance of compaction: Part 1 – General

Importance of compaction General: Specifications for the construction of new pavement layers using unbound or stabilised material will always include a minimum density requirement.  Achieving this density requirement is of primary importance because the performance of a pavement layer under load is largely dictated by the density of the material in the layer. The density…