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trynewideas · 2023-01-06 · Original thread
From the study:

> In addition to the features described above, aggregate-scale relict lime clasts, also referred to as remnant lime or lime lumps, are a ubiquitous and conspicuous feature of both architectural and maritime Roman concretes. The presence of these distinctive bright white features has been previously attributed to several scenarios including incomplete or over-burning during the calcining of lime (20), carbonation before concrete preparation (30), incomplete dissolution during setting (12), or insufficient mixing of the mortar (14).





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