Latest
productroadmapForms 2 and 3: what comes after backfill
Form 1 is available to pilot today. Forms 2 and 3 extend the same material system into precast tiles and cast formats on the roadmap.
Arash Fallah Tafti
CEO
Blog
Notes from the team.
Product framing, placement practice, pilots, validation, and technical notes on buried concrete durability. Written by SubLay team members.
Earlier notes
How we publish validation status (without headline numbers)
Why SubLay uses ready / in progress / roadmap labels instead of protection percentages, and how to read the validation table.
Mahtab Dehghani
Chairman
Finnish infrastructure pilots: who we are looking for
Who should request a SubLay C pilot in Finland, what a pilot pack includes, and how to use the pilot request form.
Yalda Biabany
Head of Commercial
SubLay C Form 1: a normal foundation day
How Form 1 placement fits a contractor day: contact zone, thickness, compaction, backfill, and simple QC, without changing the concrete mix.
Safa Fadaei
Head of Process and Manufacturing
Why we treat the soil, not the concrete mix
Most durability spend lands inside the structure. SubLay C works on the contact zone most teams leave as ordinary backfill.
Arash Fallah Tafti
CEO
What is SubLay C?
A plain-language introduction to SubLay C, our mineral protective bedding for buried reinforced concrete, and what is ready today versus still in progress.
Mahtab Dehghani
Chairman
Welcome to sub-lay.com
SubLay is live at sub-lay.com: protective soil for buried concrete, SubLay C Form 1, validation status, and how to start a Finnish pilot conversation.
Arash Fallah Tafti
CEO
A useful pilot connects performance with the owner decision
What a Finnish SubLay C pilot should decide, what evidence to collect, and why a trial is not the same as a procurement contract.
Yalda Biabany
Head of Commercial
Building a credible durability test programme
How we think about staged lab work and pilots for SubLay C Form 1: matched comparisons, clear indicators, and no headline protection percentages.
Mahtab Dehghani
Chairman
Qualifying recycled mineral inputs for protective bedding
Industrial side streams can feed SubLay C when regulation allows, but each input needs its own qualification. Recycled percentage alone is not a product claim.
Mahtab Dehghani
Chairman
Acid sulfate soils make site investigation essential in Finland
Finland's coastal acid sulfate soils can turn aggressive once disturbed. Mapped risk should trigger site investigation before a buried-concrete pilot, not a generic backfill assumption.
Mahtab Dehghani
Chairman
Chlorides and carbonation create different corrosion risks
Chloride and carbonation attack steel through different mechanisms. For buried assets, ion movement through soil and backfill matters as much as cover inside the concrete.
Mahtab Dehghani
Chairman
Technical notes on buried concrete durability
A short index of engineering notes on ground exposure, Finland acid sulfate soils, material qualification, validation, and pilots. SubLay C Form 1 treats the contact zone without changing the mix design.
Mahtab Dehghani
Chairman
Looking for the product itself? Open SubLay C or request a pilot.