Partition masonry · Baku, Azerbaijan
A partition block built from what Baku already throws away.
RenewBlocks combines shredded plastic, incinerator ash, and limestone quarry dust with cement into a lightweight, non-load-bearing masonry block — cured with CO2 gas instead of water.
Stage: TRL4 — lab formula validated, full-scale block not yet produced. Pilot site: Sumgait, Azerbaijan.
Front face, hollow CMU — to scale
Three waste streams
What goes into a block
Every block starts with material that already exists nearby, with nowhere useful to go.
Shredded HDPE/PP plastic
Pre-sorted plastic bales, sorted by resin code and dry-shredded on site.
Incinerator bottom ash
Leftover ash from municipal waste-to-energy processing, weathered outdoors before use.
Limestone quarry dust
Fine dust from local limestone quarrying — a byproduct the quarry otherwise pays to dispose of.
Combined with cement, a small amount of microsilica, and cellulose pulp, then pressed and cured with CO2 gas. See the full process.
Where the numbers stand
We label every figure by how sure we are of it.
Some of this is measured in the lab. Some is a target we're still building toward. We don't blur the two — see the full breakdown on the technology page.
~12.3 kg
Target block weight, vs. ~28 kg for a standard stone block. Not yet weighed off the press.
9.0 MPa
28-day compressive strength on a solid 160×40×40mm lab specimen — not the full hollow block.
>5.0 MPa
24-hour CO2-cure strength target for the commercial block, net area. Not yet measured.
~85.8 t
Plastic, ash, and limestone dust diverted per 10,000 blocks. To be confirmed at production scale.
~3.5 t
CO2 mineralized into solid mineral per 10,000 blocks — a stoichiometric estimate, not yet measured.
4.14 MPa
ASTM C129-17 minimum for non-load-bearing block — shown for scale, not a claim of certification.
The team
Three people, one capstone project.
Ziyad Shiraliyev
CEO / Founder
Chemical Engineering, BHOS/SOCAR — formula and R&D.
Farid Valimammadov
COO / Co-founder
Supply chain, logistics, and B2B customer discovery.
Rima Guliyeva
Academic Supervisor
BHOS faculty — methodology and standards guidance.
Building toward a pilot in Sumgait.
We're an early-stage, BHOS-based project. Happy to talk technology, bulk orders, or partnership.