It took a while to compile this and just thought I would share. @rmayo we talked about this a while back.
New PGA golf course being built in Windsor, CO. Under all of the Tee boxes, Greens, and Sand Bunkers is a drainage system to keep things from getting overly saturated and flooded. As part of this drainage system a special type of concrete is used…
Future Sand Bunker with French Drain installed
Lets cover it up with concrete
Help of a mini-ex to spread it around
Ok, so what, looks like they poured concrete and sloped it all to a drain. NOPE!!! Water actually flows THROUGH the concrete to get to the French Drain. When tested, this stuff had an average compressive strength of 4700 PSI… Crazy.
(had to reduce resolution to transfer the file, hence the graininess. hope it works.)