1. Cut away of RapidBlocs illustrating attachment mechanism
2. High Tensile Steel Anchors

The anchorage system is very simple yet structurally very strong, with a RapidBloc stack being effectively prestressed by the anchor rods in tension back to the concrete base.

The anchors reach through the Rapidbloc and using the Unistrut nut simply attached to the Unistrut track in the RapidBloc beneath or into the embedded Unistrut in the channel base. Pull out loads (with a safety factor of 3) are quoted as 6.7kN per anchor and 4 anchors are recommended for each RapidBloc.