MHEA members are invited to an exclusive visit of Tarmac’s Tunstead Quarry on Wednesday 9 May, with a guided tour by Quarry Manager Phillip Shimmell. Visits are organised to provide unique access to member sites to give fresh insight about the requirements of a particular sector.  Tunstead Quarry is one of the largest in the UK, extracting approximately six million tonnes of limestone each year.  It is the largest supplier of lime and lime-based products and also produces aggregates as…