In a period from April to November 2009 Ebor Concrete has produced a total of 584 blocks (300 m3) of CRC for relining of the manshaft at Boulby mine - at a depth of 1000 metres. The design of the blocks and the refitting scheme has been carried out by the owner Cleveland Potash Limited.
The content of CRC binder was 710 kg per m3 and mean 28 day strength was slightly above 130 MPa. 16 of the blocks have been fitted with embedded instrumentation in order for Cleveland Potash to follow the behaviour of the lining closely.
