DEM168/22 - Specification of surfacing aggregate PSV (minimum) for use on the ‘Minor’ road network - Screening Form

Date published: 11 May 2022


This memorandum assists the Designer in specifying surface course materials through prescribing minimum values of Polished Stone Value (PSV) for the coarse aggregate and chippings in surfacing mixes for use on Northern Ireland’s ‘minor’ road network.


  • Existing/Revised/New: Revised
  • Date of Screening:11 May 2022
  • Screening Outcome – Full EQIA Recommended: No
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