Hello! https://www.openstreetmap.org/node/11877446001/history has surface = concrete:tiles that was added in this edit
What was meant by surface=concrete:tiles ? Is any value from https://wiki.openstreetmap.org/wiki/Key:surface#Values fitting?

Are these small concrete plates (also known as paving tiles)? That would be tagged surface=paving_stones See https://wiki.openstreetmap.org/wiki/Tag:surface%3Dpaving_stones