Flood & Sea Defence Aggregates

Flood and sea defence aggregates with the resilience and strength to withstand the harshest conditions.

Robust and durable, our extensive selection of sea defence aggregates is well-suited to cater to the evolving requirements of sea and coastal defences in a world where rising sea levels are an increasing concern.

Sourced from over 60 quarries across the country, and readily available via a comprehensive nationwide transportation network, are a resilient and reliable protection against the powerful forces of nature, making them an integral part of modern sea defences.

Able to withstand the test of time and challenging weather conditions, these specialist aggregates for river and coastal defences offer long-lasting protection to shores, embankments and shoreline infrastructure, playing a vital role in dissipating wave energy and mitigating soil erosion, crucial for maintaining the natural integrity of our landscapes.

In line with our commitment to environmental sustainability, our sea defence aggregates do more than just stand against flood and sea threats. They promote vegetation growth and facilitate habitat creation, underscoring our dedication to nurturing a harmonious balance between environmental protection and preservation.

In addition to gabion stone, rip rap and armourstone, our aggregates for sea defences includes innovative products such as Quattroblock (the most stable block revetment currently available) and the highly regarded Xbloc system of breakwater concrete armour units.

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Rip Rap is a crushed rock available in 300-700mm and 500mm-700mm sizes. It’s an effective choice for the protection of shorelines, structures and rivers offering long lasting wave dissipation and scour protection.

Armourstone is natural quarry stone, chosen for its durability and resistance to wear and erosion.

The Basalton Quattroblock is designed for moderate waves. This innovative block is a combination of four basalton concrete columns placed next to each other

Xbloc is a large wave breakwater armour unit. The Xbloc system is based on randomly placed, interlocking concrete armour units.

The SuperFlow® product range is Holcim UK’ line of high performance aggregates specifically designed to provide controlled water management within SuDS.

A 150-300mm stone used as a walling stone some also use this for a larger option when filling gabion baskets.

Our Gabion stone is commonly used as a fill material for Gabion stone baskets, nets and rolls.

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CDM London Office

020 8778 1384

Northern Region Office
01524 738888
northern-sales@holcim.co.uk

Midlands Region Office
01455 288222
midlands.sales@holcim.co.uk

South East Regional Office
0208 896 6800 opt 1
southeast.aggregates@holcim.co.uk

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01752 485200 opt 1
southwest.aggregates@holcim.co.uk

Scotland Region Office
01698 870947
scotlandsales@holcim.co.uk

South Region Office
01373 452002
south.aggregates@holcim.co.uk

Kettering Office

01536 510552