Replies (9)

Also isn't modern brick and concrete use not as weight bearing? Its supposed to be reinforced with steel or other materials? Not saying they aren't using cheaper parts but I'm not sure its being used the same way
You're on the right track. Concrete is great at resisting compressive forces, steel is great at resisting tensile forces, combine them and you get the best of both worlds. Now in the video the test that he showed for concrete is used to determine compressive strength, so modern concrete should be good at this too. We don't calculate the strength in kg but in Newton per square millimeter. This way we can compare samples of different sizes. I'm guessing the ancient concrete cube has a length of 100 or150 mm? At 80 tonnes this would mean a compressive strength of around 60 or 27 N/mm2. Which is around the same as some concrete used today. We can actually produce concrete with more than 100 N/mm2 but this is rarely done because it's quite expensive. With modern concrete we can reliably calculate the resulting strength of the mix, so we usually just select a mix with a little bit more strength than is actually required by the structural engineer. We could use stronger concrete but that would just be a waste of money. My guess is, that they deliberately chose a weak concrete for the video or added too much water to the mix.
Oh boy, there is so much wrong with this video, I don't even know where to start.
Yes, that is exactly what is being compared. Newer markets produce the cheaper concrete, specifically for what they are designed to, so that it can only survive to its purpose. That is not bad if we were talking just to momentaneous stuff. But, when it comes to what the people actually expect, then this turns to an issue. Log cabins being built with woods that cannot survive through 2 different generations, furniture getting to be treated with delicacies, all cars needing mechanical maintenance after 5 years of use, etc. These all are examples of an economy that is bought by society not because they want it, but because they have no purchasing power (and lack of lots of other stuff) anymore for buying stuff that can endure, even if the maintenance costs will be greater than buying great quality stuff. This is a reflect of the struggle, the reflect of not having even the possibility to keep money for the most simple stuff in life.
I'm not saying enshittifcation isnt happening. But in always thought it was a bifurcating market. Low cost just barely useful stuff is probably good enough for lots of people. I know I wouldn't spend 1k on a bag, $10 is fine. While another market of high quality at higher prices also develops. And in some sense I think im better off with my shitty 10 bag that I'll replace 100 times cause I can abuse it in a way I can't abuse a 1k bag.