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by nusq 3652 days ago
This article is full of FUD. What is the alternative? All these reinforced concrete problems are well understood and studied. if proper construction and design codes and maintenance guidelines are followed these structures can last a very long time.

In europe we have EuroCodes that account for this problems and to my knowledge concrete cancer is not related with steel corrosion but with a long term chemical reaction between some aggregates and cement. Remember that concrete is cement with sand and stones and the hardning chemical reactions are complex and can last for decades.

1 comments

>to my knowledge concrete cancer is not related with steel corrosion but with a long term chemical reaction between some aggregates and cement.

It's called carbonatation, it reduces the concrete's pH which leads to rebar failure, and it's only going to get worse with climate change.

https://en.wikipedia.org/wiki/Carbonatation

I was refering to alkali-silica reactions https://en.wikipedia.org/wiki/Alkali%E2%80%93silica_reaction...
Thanks, TIL!