Campus construction Jul 31, 2023 20:48:47 GMT -8
Post by fishwrapper on Jul 31, 2023 20:48:47 GMT -8
The light stuff is the base layer - think prepping a road bed. The dark stuff is, if they are using the same general approach and material they use on other fields, crumb rubber, basically ground up rubber materials - could be tires, old sneaker soles, whatever. That layer provides the simulation of the topsoil under grass, and this material is also used for infill, as it fills in between the blades of turf keeping them upright. They also put it on top so it can sift down - which really is the "infill" part.
It's the infill material that cleats dig into when folks are using the field. The turf itself is kind of like shag carpet, with all the blades woven together on a backing material, If there was no infill, the filed mats down pretty quick, and gets torn up if the cleats are digging into the backing material. Sometimes sand it mixed in with the infill material, as well as other materials.
A few years ago they replaced the field at CHS and it was a treat to go by each day and see it get torn down and layered back up. New turf is almost soft and spongy..until all the players keep carrying off the pellets in their shoes. My son was in marching band - over two seasons he probably collected a gallon or so of that stuff - multiply by the number of players over time and you can see why the SLP fields were getting so flat.