>>14302362>last hundreds of yearsObviously you've never heard of concrete spalling. The only concrete that lasts hundreds of years is Roman concrete and that's because it wasn't reinforced. You cannot build large brutalist structures without reinforced concrete as you need the tensile strength of rebar. This drastically reduces the lifespan of such structures to decades at best as water seeps into the concrete and oxidizes the rebar. The rebar then expands which cause the surrounding concrete to spall. Pic related. When enough spalling occurs, the reinforced concrete looses its compressive strength and it all comes tumbling down, tumbling down, tumbling down...
