The Ledger
Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.
why aren't all 4 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable
Ellis: Low-carbon cement green premiums are negligible for building owners
“90% of the cost of cement being labor, and only five percent being materials costs, even, even as these new technologies for making cement you know, until they get to scale, they're going to have some sort of green premium associated with them, but that green …”
Sublime CEO: Standards are not enough; concrete workers reject stiff mixes
“These performance-based standards, the ASTM, the ACI, all of these things are necessary, but not sufficient in the eyes of the concrete subcontractor, because they have to make sure it finishes in a way where it doesn't hurt that man's elbow, because if you ge…”
Ellis: SCMs can only replace about 30% of Portland cement
“So you can only blend about 30% in before you start reducing, you know, diluting the performance.”
Ellis: Space constraints prevent ready-mix plants from stocking niche low-carbon cements
“They occupy some of the most central and desired plots of real estate in the hearts of cities so that they can get concrete through traffic to where it needs to be poured.
So they're very space constrained, and every square foot of land is important to them.
S…”