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:
http://i.imgur.com/hdVejP2.jpg
http://i.stack.imgur.com/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