The Cubilok™ is a new trademarked armour unit that was developed in South Africa by PRDW to cater to a range of breakwater designs. As part of a master's research study, 2D physical model tests were conducted to investigate the stability and behaviour of the Cubilok™ on a 3V:4H slope. This investigation revealed that wave steepness significantly influences the performance of the Cubilok™, with superior stability observed during conditions with shorter wave periods. When simulated with a packing density of ɸ = 0.63, the stability of the Cubilok™ is comparable to other armour units, however it is prone to significant settlement. Further findings indicated that the stability of the Cubilok™ greatly improves when placed on a 1V:2H slope, where all movements, including rocking and settlement, were reduced to near negligible amounts. This suggest that the Cubilok™ might be a more suitable alternative for designs where milder slopes are required.
