Nuclear Power Plants At Risk Of Direct Hit By Hurricane Florence

I'll give an example of how weather wares concrete easily. Take a look at an average poor area, and look at the concrete sidewalks. See all the massive cracks and tiny holes in it all over the place? Thats from a decade of rain. I've laid cement myself before, I know how simple it is to wear and tear over time.

I still say they should be using thick galvanized steel, at least have the concrete around it from the outside (for looks), but concrete should be for looks only, not heavy duty re-enforcement.

If they utilized thick galvanized steel for re-enforcement, even tsunamis would not be such a big problem, they could have the reactors turned off during such times of emergency and those buildings would not weather for hundreds of years.

I would hope its not.
Because in the event of a failure, radioactive waste could get in to the water table and rather than just a handful of pepole dying you could have millions of deaths.

After Chernobyl the real heroes were the guys who dug under the reactor and poured concrete down there.
The guys on the roof were just showoffs.

The pressure vessel, which contains the nuclear reaction is metal. Usually some kind of special high tech stainless steel.
They add ten foot concrete on the outside for stability and shielding.
The Japs made their pressure vessel from a certain material that gives off hydrogen at high temperatures. Which is why fukushima exploded at all.

Well if you had the proper layers of protection a leaky reactor wouldn't become such a problem because it would be in an isolated area not able to seep into any nearby water supply or waterbed. If massive amounts of concrete all around it does the trick then I guess thats good enough then.

A leak would be a worst case scenario event, but obviously they plan for the worst case scenario.
Obviously the Japs didnt in Fukushima. Which is out of character for them I think.

Im not a structural engineer, but I think the strategy with concrete is just to go mad and put it everywhere you can.
Your right that there are other materials which could protect better. But you can go totally over the top with concrete. Its cheap and its easy to install because you just pour it in a hole and it goes solid.

you should read a book or something and learn how water cooled reactors are built.

enriched uranium decay naturally produces H. the systems in place in the reactor vessels to collect and discharge the built up gas failed due to power loss. So Boom.

There really is not a way to design a reactor containment structure that is not impervious to a 7+ magnitude earthquake. It prob. wont collapse into a pile of dust, but it will fracture, just because of the nature of reinforced concrete - no matter how thick. It has no real shear strength other than what the reinforcing steel can give. thats what happened at the Fuki. The earthquake fractured the conc. containment structure. Power loss denied the reactor cores with coolant and so they suffered a meltdown, burned through the pressure vessel ( big steel pot with a lid where the U235 rods live in a pool of water) and the melted fuel or some of it drained into the conc. containment structure. pumping water into the reactor core to keep it from going critical and the nuclear fuel from burning through the concrete floor and into the ground below the plant seeps thru the fractures and into the groundwater

That contradicts the official reports which state that the earthquake caused the three operational reactors to perform an emergency shut down. And then the tsunami taking out the coolant system caused a hydrogen explosion which caused the damage.
The three other reactors at the same facility that were not operational at the time suffered no damage at all.

Obviously im inclined to believe some guy on Zig Forums more than the official reports by sneaky japs. But im not sure if what you said adds up.