It was the '60's...... shag carpet could be found everywhere! Actually, just crappy concrete finishing I think.....
The GM plant I worked in had 3 x 5 x 2” thick blocks, they came creosoted and when put down hot tar was poured on them to help keep them in place. One year we had a torrential rainstorm and one section of the plant got flooded. Thousands of blocks lifted and they were scooped up, loaded into heat treat baskets and put in heat treat furnaces at low temp to dry them. I was friends with the metallurgical engineer that came up with that idea, he saved the plant a lot of time and money with that solution. Management was concerned they couldn’t get mass quantities of blocks in a timely fashion. And for sure, like @Scarebird said, much easier on your feet and back.
The local chocolate plant that was built in the 1900s had 2 X 4s about a foot long bedded in sand for the same purpose.
The Jalopy Journal
