Cement that binds our buildings costs many times the limestone and fuel alone, because the century-old kiln process itself is the real expense.
Segment 1 — The Cold Open
A cubic meter of structural concrete sells for roughly one hundred to one hundred fifty dollars in most markets, yet the rock, sand, and limestone inside it can be valued at commodity prices well below twenty dollars. ...
AI Disclosure: This podcast is curated by Patrick but uses AI-generated voice synthesis for audio production.
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