Pavement Coring


Core sampling of road pavements is generally undertaken to determine construction and allow further site analysis of unbound material or laboratory analysis of the materials.  Generally core samples of nominal 150mm diameter are extracted at positions of known defects and/or at regular spacing

Nicholls Colton operate a permit to dig system, with reference to utility and other records for the investigation site with all locations CAT scanned with a suitable cable tracing device before commencement, as described in HD 29/08 prior to core extraction.

Core logging and photography, along with material testing including PAK-Marker and PAH (for the identification of the presence of tar) is undertaken as part of a comprehensive suite of laboratory tests available to supplement pavement evaluation.  Nicholls Colton is UKAS* accredited for many of the tests associated with pavement coring and laboratory testing.