In 1979, the Victorian #NewhavenFort was scheduled as an #AncientMonument. #LtJohnCharlesArdagh used #Concrete formulas innovated by the #RoyalEngineers to achieve the first mass use of the material in a military structure. Readily available shingle from Newhaven beach was mixed with #Chalk burned to #Lime and transported on the #VictorianRailway from the nearby #BalcombePit.
In Source: Newhaven Fort
