Everyone talks about the benefits of Portland Limestone Cement—but what if the same report that justified the switch also warned us about the risks?
In this 5-minute clip from Episode #126 of the Concrete Logic Podcast, Seth Tandett unpacks the State-of-the-Art Report on Use of Limestone in Cement—a foundational document behind the PLC movement. While the report highlights lower CO₂ emissions and strength potential, it also quietly warns about:
* Strength loss from too much limestone
* Increased carbonation depth
* Greater risk of steel corrosion in poorly cured concrete
These red flags are in the report—most people just haven’t read that far. If you’re in the concrete industry, this one’s worth your time.
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