I like the floor to it looks like a painted concrete what is it?

I really like the floor, can you tell me what it is and how you would clean it?

I think that I saw that this floor was featured in an article under linoleum, hope that helps

This question was answered under one of the other questions by the designer of this great kitchen, Debra Toney, AIA Assoc:
"The shapes are cut from the sheet linoleum and then assembled in the field.5 the seams are welded once the floor laid out."
I'm becoming a huge fan of linoleum!
:) Rhoda