Quality control of earthworks and (sub)base layers

Both at the European and the global level, exchange and work structures are developing that foster technical progress in earthworks and earthmoving projects. They promote:

  • a coordination of practices (establishment of standards institute);
  • greater participation in research at the European and global levels;
  • the scheduling of conferences for exchanges between professionals.

Such structures include:

  • the technical committee on Earthworks and Unpaved Roads of the World Road Association;
  • the technical committee on Transport Geotechnics of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE);
  • technical committee TC396 Earthworks of the European Committee for Standardization (CEN), which has been mandated to draft a specific standard for earthworks;
  • the international workshops on earthworks in Europe.

BRRC participates in these efforts and focuses on the development of new inspection methods using measurement techniques that are more representative of traffic-induced stresses (dynamic loading) as well as high-yield techniques that are faster and require relatively short preparation times.
Dynamic loading methods and indirect (geophysical) methods are the areas where most progress has been achieved in recent times.

Earthmoving machines, especially compactors, are increasingly capable of processing information while carrying out works; they are the precursors of “intelligent” machines (Continuous Compaction Control).

To bring the studies in this area of expertise to a successful conclusion, BRRC has purchased the following equipment:

  • German dynamic plate (Light Drop Weight Tester);
  • Dynaplaque;
  • data acquisition system and radar antennas.