
  
| Bob discusses the concrete walk with the contractor. He gives Bob some tips on how to make the concrete cure harder and have less cracks. They then discuss the aggregate, ...
Watch video and view full description
|

  
| NOW PLAYING
Playground Construction, Part TwoBob visits the playground in Columbus, Ohio to check on the construction progress. Bob discusss the materials and techniques used in the project, including the octagonal roofs and "wavy" walkways.
|