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EKFB JV - NC2A WGT Portal Buildings Blockwork package · Eiffage Kier JV HS2 Main Civils Works, Lots C2 & C3

Published 16 September 2026

Tender brief

NC2A is the North Chilterns to Aylesbury section of C23, a part of the HS2 project managed by the EKFB Joint Venture.

We are seeking a specialist subcontractor to undertake the following works within the NC2A section:

  • The Subcontractor shall provide all necessary management, supervision, plant, labour, materials and temporary works to deliver the blockwork package for Wendover Green Tunnel Portal Buildings. The works comprise the construction of external masonry walls and internal masonry partition walls, including the supply and installation of the following, but not limited to: •Concrete blockwork on the external perimeter walls to be on a 150mm x 140mm concrete upstand
  • Internal partition walls are to be founded directly on the structural foundation slab.
  • Sand and cement skirting •440x215x140mm 7.3N/mm2 1450kg/m3 concrete blockwork, including all associated connections and movement joints •Stainless steel bed joint reinforcement and all masonry ties •Padstones •Concrete lintels •Wall head fire stopping system

Please carefully consider the information above and whether this opportunity is suitable for your business before registering your interest.

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