Der Dynamische CBR-Versuch – eine neue Qualitätskontrolle für den Erdbau – Geotechnik; Ausgabe 4, Seite 271 – 274 (2000) – Professor Dr.-Ing. Hans-Henning Schmidt und Dipl.-Ing. Jürgen Volm

  • Author: Professor Dr.-Ing. Hans-Henning Schmidt and Dipl.-Ing. Jurgen Volm

Related Resources

Dynamic CBR as a method of embankment compaction assessment – Katarzyna Zabielska-Adamska – Head of Geotechnics, Faculty of Civil & Environmental Engineering – Politechnika Białostocka (Bialystok University of Technology – Poland)

Author: Zabielska-Adamska K., Sulewska M.J0

In engineering practice, earth construction requires suitable soil compaction, usually relating to the Proctor methods. Materials of the built-in embankment and the subgrade have their own specifications, dependant on the kind of earth structure and soil plasticity characteristics. Care should be taken not to use compaction degree (% of maximum compaction) as the only parameter to assess soil compaction. This applies to both cohesive soil and to fly ash whose permeability and mechanical properties dependent on moisture content at compaction. Therefore, for these types of soils California Bearing Ratio could be used as a method of compaction assessment being an indicator of soil bearing capacity. The CBR research was done for both static (classic) and dynamic methods on fly ash samples without soaking them to replicate field conditions. The dynamic CBR tests were conducted by using Light Weight Deflectometer consisting of a falling weight to produce a defined load pulse of the CBR piston. The CBR test could be used for running compaction control during embankment erection, which specially refers to dynamic CBR test due to the speed of research execution.

Instruction for the determination of the dynamic CBR value using the Light Weight Deflectometer (LWD) – Appendix 3 “Notes on the use of steel slag in road construction” Research Association for Roads and Transportation, Cologne 1996 (“Merkblatt zur Verwendung von Stahlwerksschlacken im Straßenbau” – Forschungsgesellschaft für Straßen- und Verkehrswesen, Köln 1996)

Author: Forschungsgesellschaft für Straßen- und Verkehrswesen, Köln. FGSV Köln

Richtlinie über die Aufbereitung und für die Güteüberwachung von. Haldenbergen aus dem Kupferschieferbergbau im Straßenbau – DA- 9:2006-224