Xbloc® Efficient Wave Protection

DMC offers products that provide protection against waves and currents. These products build on 40 years of experience in design of marine constructions and 20 years of experience with the original Xbloc armour units. 

The Xbloc product line comprises of the following products:

  • Xbloc: randomly placed breakwater armour units 
  • XblocPlus: pattern-placed breakwater armour units 
  • Xstream: small Xbloc units placed in bulk to form river groins and scour protections. 

The Xbloc product line offers wave protection with a strong focus on:

Resilience to climate change 

Breakwaters and shore protection have been tested stable up to 200% of the design wave height. Xstream river systems are flexible and easily adaptable in case of changing river runoff.  

Nature value and Sustainability

We aim to stimulate aquatic life development in the porous Xbloc layer and our blocks lead up to 50% in reduction of the carbon footprint. 

Financial feasibility 

Xbloc and XblocPlus lead to reduced material quantities compared to rock armour and other concrete armour blocks. Furthermore XblocPlus leads to 25% - 50% fewer blocks needed compared to other concrete armour blocks resulting in installation time and cost savings.


Thanks to the form and layout of the blocks, XblocPlus offers a modern architectural quality complementing the design of shore protection structures, e.g. breakwaters for marinas. 

Continuous innovation

Within the 3 main systems DMC continuously strives to develop innovations to make our projects more safe, practical sustainable and efficient. 


DMC offers solutions for numerous challenges relating to water. Examples include stormwater drainage systems in urban areas, methods to control river runoff, flood and wave protection systems for both in marine and river environments. More information about DMC's services can be found here: DMC site.