Reefline: 38% lower-carbon cement, 3 pours with Tier-1 builders
Tom Achebe <tom@reefline.example>8:42 AM
to Marta Kowalski <marta@saltbushclimate.example>
Hi Marta,
On the Net Zero Builders podcast you said the cement problem won't be solved by anything that asks contractors to change how they pour. That's the constraint we designed around: Reefline is a drop-in additive that cuts embodied carbon by 38% with no change to mix design or curing time.
Since March: three commercial pours with two Tier-1 builders, AS 3972 compliance testing passed, and $410K in signed supply LOIs.
We're raising a $2.8M seed to build our first blending line. Could I send the deck, or grab 20 minutes next week?
Cheers,Tom AchebeCo-founder, Reefline
Marta Kowalski replied 4 hours later
"No change to mix design" is the line that matters. Send the deck, and loop in your CTO for a call Friday.





