Production of concrete segments for a vital part of Britain’s HS2 rail project has been completed at a huge factory in Kent. Husband and wife Saad Aarab and Loubna Samih were among those casting the final part which will be used to build the five-mile Northolt Tunnel running between London Euston and Ruislip. Pacadar UK will be manufacturing every major element of the 880 metre-long Thame Valley Viaduct for the high speed railway scheme at its factory on the Isle of Grain. Work on the first of 68 precast concrete pier started in May 2023 at the firm’s base in Medway. Now, the company has compl…