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Improved durability through optimized closing of drill core extraction points

In order to assess completed road construction work, it is necessary to take drill core samples. Although the drill core extraction points are closed again, many of the closures turn out to be of inferior quality. The result is damage to the construction. On behalf of the Federal Highway Research Institute (BASt), a draft of a procedure for the professional closing of drill core extraction points was therefore drawn up in order to prevent subsequent damage to asphalt and concrete pavements and to improve the long-term maintenance of quality in road construction. This draft forms the basis for further revision in the corresponding committees of the Road and Transportation Research Association (FGSV).

The developed documentation concept is a first and important step towards central data backup. In the long term, the establishment of a database for the collection and provision of relevant information is recommended.

Additional Information

Research compact 05/2020

Report

Investigations to improve the method used for professional closing of drill core extraction points
Reports of the Federal Highway Research Institute, book S 142, 2020

  • Contact

    Federal Highway Research Institute
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    D-51427 Bergisch Gladbach
    Info-Service
    Telephone: 0049 2204 43-9101
    Fax: 0049 2204 43-2550
    info@bast.de

  • Reports

    BASt's reports are almost entirely in German. Each report includes an english abstract. You can find the complete report by following the link to ELBA on the report's page.