The aggregate shown below was salvaged from a shed that I removed from my backyard I am planning to use it to correct the pitching of my patio (see my other questions in this forum for details)
Can I use this aggregate? It is pretty similar with what was used before when the patio was installed
bigger pictures here:
https://i.sstatic.net/dKai9.jpg
https://i.sstatic.net/XwbwG.jpg
Note: first picture shows a coarser aggregate Second picture shows some traces of gravel. I can remove those, that is not a problem