you can claim those two images show concrete, but they dontActually the reverse is true. I've show hundreds of thousands of tons of concrete and verified that is exactly what is supposed to be seen a number of different ways.except you have shown NO CONCRETE
Here is 200,000 tons right here.
Just like the Oxford encyclopedia of Technology and Inovation published in 1992 describes.
Just like August Domel, Ph.d SE. PE. writes in his safety report a few weeks after 9-11.
that second one is not even making the claim you seem to think it does, since it is WRONG