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← HistoryPost-Medieval European masonry frequently relied on 'hydraulic lime' mortars; which consequence arose if insufficiently burned?
A)Accelerated carbonation in thinset mortars
B)Incomplete hydraulic reaction underwater✓
C)Increased susceptibility to sulfate attack
D)Excessive expansion from alkali-silica reaction
💡 Explanation
Incomplete burning converts less calcium carbonate into reactive lime; the *hydraulic reaction* remains partial because insufficient production of dicalcium silicate, therefore incomplete setting where water is abundant, rather than rapid hardening from recarbonation at the surface.
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