In December 2010, ADIF, the Spanish authority responsible for railway infrastructure management, specified Concrete Canvas
(CC) to be used as slope protection for a railway station in Madrid. CC was chosen to address years of erosion and instability
issues affecting the entrance of Alcobendas tunnel station. Erosion of the steep railway slope trenches had caused silting at
the drainage pumps in the tunnel entrance. Shotcrete has long been the traditional solution, but presents several problems with
installation and durability. CC8 was specified and 2500sqm of material was delivered on site in bulk rolls.
The project’s first phase of 800sqm was completed in under 3 days and was 70% quicker to install than if shotcrete had been