Unbound material sampling (UMS)

Unbound material sampling (UMS) shall be undertaken below the underside core holes or within trial pits.  Samples are taken by a window sampler usually to a maximum depth of 1m below the underside of the pavement

Material samples are logged and photographed to identify each distinct material layer and may be subject to laboratory testing.  Nicholls Colton is UKAS* accredited for many soil tests generally as detailed in BS 1377.