Welcome on piarc.org!

PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

Your basket
  1. Home
  2. Work topics
  3. Resilient Infrastructure
  4. Earthworks
  5. Technical Reports

Technical Reports Earthworks

This page lists technical reports of PIARC in the field of road earthworks. These publications are classified chronologically.

  • In Situ Assessment of Subgrade Materials

    It is important to be able to forecast the performance of the subgrade, especially its acceptable limits of deformation derived for both the construction stage and during the working life of the pavement. Ten types of in situ test apparatus are described briefly and comparisons made between them, setting out their usefulness, field of application and limitations. Three studies comparing in situ tests are identified and described. The tests using large platens gave reasonably consistent results and [...]

  • Marginal Materials - State of the art

    Three PIARC Technical Committees have devoted part of their preliminary work to the XVIIIth Congress (Brussels, 1987) to the use of marginal materials in road technology: Technical Committee on Testing of Road Materials, Technical Committee on Flexible Roads, Technical Committee on Earthworks, Drainage, Subgrade. The first part of the document concerns the use of marginal materials in earthworks and subgrade. The second part deals with the use of marginal materials in the construction of flexible [...]

  • Testing Aggreates

    Particle-size Analysis by Sieving, Los Angeles Test, Sand Equivalent, Accelerated Polishing Test, Determination of the Amount of Fines Passing 0.075 mm Mesh, Gravimetric Measurement: Absolute Density, Real Density, Bulk Density (with and without compacting), Aggregate Shape Measurement: Shape Factor with Callipers Flattening Coefficient, Sample Preparation for Testing, Frost Susceptibility, Elements for Aggregate identification, Determination of Sand Flow Coefficient, [...]

  • Contribution to Risk Management of Existing Slopes

    C12 decided to extend those studies and adopted the topic risk management of existing slopes during the period 1995-1999 to focus on the utilization of monitoring techniques and database applications. The report summarizes the risk management on existing slopes in technical aspects through the collected case study documents and comments from C12 committee member countries. The report also treats the cases of real and administrative applications. The report considers innovative monitoring technology [...]