Quell fail chì el ven de Wikimedia Commons e 'l po vesser doprad de alter proget.
La descrizzion sora la soa pagina de descrizzion del fail l'è mostrada chì de sota.
Somari
Descrizzion2ndary efflorescence 01.jpg
English: Secondary efflorescence, washing out components of cement stone, thus weakening the concrete. In this case, remedial work has already been done once, as can be seen in the concrete patches. But the cause for this "concrete osteoporosis" was not fixed, which means that the damage continues. It is possible to prevent this problem through a better concrete mix design as well as through the use of an impervious, covalent barrier on top. This is the bottom of a slab as seen from the second level of parking in a hotel in Ottawa, Ontario, Canada. Cars with road salt drive in on the upper level, the salty water comes off the cars and then wash out minerals from the cement stone, which winds up as ugly-looking tumors below. The tumor analogy is apt, because, if unchecked, this process will continue to weaken the concrete. In primary efflorescence, one only loses matter that odes not get bound in the cement stone. In secondary efflorescence, one loses matter that originally made the concrete strong.
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atribuzzion –
Te gh'hee de fornì i sgiust credit, un conligament a la licenza e insegnà semai che ghe sien stad portad di cambiament. Te podet fall in una quaisevoeur manera rasgionevol, ma minga d'ona manera che la sugerissa che l'autor approva ti o la toa utilizazzion.
https://creativecommons.org/licenses/by/3.0CC BY 3.0 Creative Commons Attribution 3.0 truetrue
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Quell fail chì el gh'ha dent di informazzion adizionai, che l'è probabil che sien stad agiontad con la fotocamera o 'l scanner doprad per creà o digitalizzà el fail medesim. Se el fail a l'è stad mudifegad, un quaivun di detali el pudariss corespond pu ai modifeghe fade