Company News

M1 Junction 28 to 31 – CSB Replacement due to Concrete Contamination

In 2014, Extrudakerb constructed 30km of Concrete Step Barrier along the M1 between junctions 28 and 31.

In May 2015, the Principle Contractor, Costain, commenced removal and replacement operations to some of the barrier due to the fact that a contaminate was contained within the concrete. This contaminate issue only became apparent approximately 12 weeks after the barrier had been constructed. The concrete was supplied to Costain by Lafarge Tarmac.

Extrudakerb had no commercial relationship with the concrete supplier on this scheme.

The contaminate contained within the concrete has been reported as Dead Burned Dolomite and has resulted to the concrete spalling in numerous locations. This is also evident in other concrete products on the scheme such as the surface water channel and reinforced concrete collars around existing bridge piers.

In June 2015, Extrudakerb were instructed under a Compensation Event by Costain to reinstate the removed barrier sections. Once again Extrudakerb have no commercial relationship with the concrete supplier.

Spall 2  Spall 1

For further information please contact Highways England’s Information Line on 08457 50 40 30.