No mix-design change
Keep your concrete recipe and structural design. SubLay C works in the soil contact zone around the asset.
Product
Protect buried concrete without changing the mix.
SubLay C turns ordinary backfill into a mineral corrosion shield around buried reinforced concrete, without changing the mix design.
Mineral protective bedding for buried reinforced concrete

Why SubLay C
SubLay C Form 1 is the product you place this season: engineered protective backfill around the buried sides and base of reinforced concrete. Forms 2 and 3 extend the same material system later.
Other products protect the steel, the concrete mix, or the concrete surface. SubLay C treats the soil that attacks them.
Keep your concrete recipe and structural design. SubLay C works in the soil contact zone around the asset.
Place, compact, and backfill with clear thickness and QC guidance your contractors can follow.
Designed for the chloride, sulfate, and moisture exposure that eats ordinary backfill, including acidic sulfate-bearing coastal ground and salt-loaded roadside soils.
Start with a pilot pack: material, application guidance, and a practical monitoring plan.
How it works
Place SubLay C Form 1 around the sides and base of poles, foundations, and other buried elements. Ordinary soil stays outside that protective bed.
Cross-section: SubLay C sits around the buried part of the concrete structure so it does not sit directly in regular soil.
Clear and prepare the contact zone around the buried part of the concrete structure.
Place SubLay C around the sides and base of the submerged structure at the agreed thickness.
Compact to the civil specification agreed with your team.
Fill the rest of the trench with regular soil around the SubLay C bed.
On pilots, install monitoring points and record lot ID, thickness, and date.
Delivery forms
Available to pilot
Loose mineral bedding for poles, foundations, and other buried elements. Replace ion-contaminated soil next to the structure.
Coming later
Precast tiles from the same material system. Coming after Form 1 supply is established.
Coming later
Cast use of the material system for flexible applications. On the later roadmap.
Who it is for
Protect pole foundations, substation foundations, and cable chambers without redesigning concrete.
Add a clear protective layer to foundation work with thickness, compaction, and QC you can run on site.
A second path for salt-exposed substructures after lab proof and site fit are confirmed.
SubLay C pilot pack
Per project
Material, application guidance, and a monitoring plan sized to your site.
SubLay C Form 1 supply
Tonne delivered
Ongoing supply after a successful pilot, with logistics planned around your contractor.
Validation
Here is where SubLay C stands today, and what we are building next for Finnish and EU buyers.
SubLay C Form 1 product and placement method
Clear placement around the buried structure. No change to the concrete mix design.
Technical and economic feasibility
Industry partnerships for materials and placement
Field pilot on buried electricity foundations
Hands-on placement experience informing Finnish network pilots.
Independent EU laboratory programme
Scoping a third-party test programme with an accredited Finnish laboratory. Results published when they exist.
Finnish utility and contractor pilots
Taking requests for pole foundations, substations, and chambers.
Construction-product conformity path
Mapping the CE conformity route for the material. Milestones published as they land.
Circular feedstock qualification
Early pilots can run on a virgin-mineral grade.
Need a site-specific dossier? Request a pilot and we will outline the evidence plan with you.
Tell us about the asset and region. We will follow up with next steps for a pilot pack.