Early failure was blamed on hot-mix quality whereas failure occurred due to inadequate compaction by lay-down contractor.

Durability and quality of asphalt pavement, advice given on suitable remedial measures.

Assessment of failures being considered for class action law-suit. Involved inspection of various building in the southeast USA and preparation of technical reports and testimony.

Type of operations by contractor resulted in excess usage of materials. Advice given to client on reasonable methods of construction.

Finite element analysis suggested that the variable soil compaction properties resulted in excessive deformation of the pavement structure.

Detailed pavement investigation and assessment of cause of failure.

Ambiguous design specification resulted in clients objectives not being met during the construction works.

Problems occurred with various aspects of construction. Work was conducted to assess how failure was related to construction and design issues and appropriate advice given.

A road surface had disintegrated – an investigation concluded that the asphalt materials were susceptible to stripping and failure due to freeze thaw action.

Problem with compaction and over-fluxing of asphalt materials use on banking. Laboratory work conducted to assess these facts and advice given to owner on remedial works and claims against original contractor.

A friction course failure was considered to have occurred due to the binder type adopted. Work conducted showed that inadequate compaction was most likely cause of failure.

Problem occurred on corner were the road owner has changed the surfacing type without consideration of the different frictional properties of the materials.

Advice given with respect to thermal crack formation in asphalt roads.

Multiple early life failure of asphalt and concrete roads resulted in detailed investigation of problems and advice to client.