Abstract
The technological characteristics of the bricks used to build, in the 2nd century A.D., the Roman “Terme a Mare” baths situated by the sea in Southern Sardinia have been studied. Theopus testaceum appears to be in an advanced state of deterioration due to exposure for more than a thousand years to a highly-aggressive marine environment. Successive salt crystallization/solubilization cycles subject both the porous structure of the bricks and the lime mortar joints to stress which leads to pulverization, fractures and the breaking off of large pieces.
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