Historic Restoration - Terry's Chocolate Factory York

Challenge: The structure was had severe structural degradation due to the ingress of moisture and water over its near 100-year life. Corrosion to the steelframe resulted in tensile forces cracking and moving the brick skin, also causing a cracked façade.

Strategy: ICCP was used as a method to control corrosion whilst the cracking and movement were repaired. This involved LoCem® and +point® AACM anode mortar to be grouted in the bed joints, alongside embedded corrosion rate sensors for service life tracking (AchillesICP and AiMS). LoCem® is a low carbon cement alternative, that can also act as a cathodic protection anode.

Outcome: The structure was restored to be used as high-value residential apartments, saving tonnes of embodied carbon and eliminated the option of demolition. The embedded system successfully controlled and monitored corrosion for the long term, adding an additional 100 years to the structure’s service life.