Single layer concrete armour units for breakwaters - an up-dating review

This report reviews information available on the design and performance of porous armour layers consisting of concrete armour units on rubble mound breakwaters or seawalls. The review identifies methods available for analysis and design, the guidance available for construction practice, and the experience of service performance.
The Review has been compiled from research by the Single Layer Armour Club, supported by members of this research club, and by the Department of Environment construction Sponsorship Directorate under research contract PECD 7/6/230. Additional support was given by the University of Sheffield and Single Layer Armour Club members.