Eco-friendly concrete tailored to the marine environment

Our low carbon, eco-concrete mix provides an added layer of protection to structures in marine and corrosive environments

Why do we need marine friendly concrete?

Sea walls and breakwaters are used for waterfronts, harbours and foreshores as coastal and flood defences, protecting shorelines and low-lying areas of land against erosion.

With a different pH to natural saltwater, concrete and marine infrastructures have radically altered marine habitats. To make these structures less intrusive, we need to look for alternative materials that have a lower impact within this environment.

Our marine concrete mix strengthens structures by delaying the onset of corrosion, which increases their lifespan and reduces maintenance costs.

Marine concrete can be grouped into three exposure zones:


The submerged zone is continuously covered by seawater


The splash zone is subject to continuous wetting and drying


The atmospheric zone is above the splash zone and subject to occasional seawater spray

What are the benefits?

Greater Durability

Creates more resilient structures that are resistant to chemical attacks

Increase Bio-diversity

Precast products designed to be less intrusive to marine organisms

Longer Life Span

Self-healing additive & GGBS increases the service life of concrete by 30%

Lower Embodied Carbon

Less cement and steel reduces embodied carbon by 50%

Adheres to design codes

Compliant with design standards exposure classes in accordance with BS 8500 and BS EN 206

Marine concrete blocks

Building resilient structures to keep communities safe

We're currently working with The Ecostructure Project to develop duable precast flood defence walls using biomimicry designs, which allows concrete to be less intrusive in marine environments.

What is biomimicry?

Biomimicry involves trying to create shapes and patterns that mimic nature’s designs in order to develop artificial solutions which enhance biodiversity. If a design problem we face has already been solved by nature, why not copy it?
By using these unique designs, we can replicate marine habitats and enhance the growth of diverse species within these ecosystems.

Eco-concrete is only part of the story

Lowering the amount of carbon in a concrete product or structure is a step in the right direction, but we can still do more to tackle the effects of climate change.

If we look at other nature-based solutions, we can add more value to concrete products. 


Reduces the amount of steel reinforcement needed and increases the lifespan of structures by 30%

Nature based solutions

Offset carbon emissions of structures in urban environments

Low carbon

Uses less cement and steel, which reduces embodied carbon of structures by 50%


Imitates nature's designs to allow concrete to be less intrusive in marine environments

Frequently Asked Questions

Which type of concrete is used in marine conditions?

Increasingly, precast concrete is used in marine environments because off-site construction can better control the concrete design and site decisions which is not normally possible at site conditions offshore.

What's the difference between marine concrete and standard concrete?

Standard concrete is produced from the mixture of cement, aggregates, sand and water. When standard concrete is submerged in saltwater, it eventually breaks down to initiate corrosion. Marine concrete on the other hand offers lower heat evolution, greater salt water resistance and greater sulphate and chloride.

What is the design of the marine concrete mix?

We use a cement replacement along with suitable additives to balance the chemical composition of concrete. This makes it suitable for marine environments and increases its durability underwater, ensuring that the steel reinforcement doesn’t corrode. In some cases, we add our self-healing additive to increase densification so as to make the concrete less permeable.  

What is eco-friendly concrete?

Green concrete is a type of eco-friendly concrete that is made from waste or residual materials and requires less amount of energy to be produced. It produces less carbon dioxide than traditional concrete and is more durable.  

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