Asphalt base under concrete road | Heavy Equipment Forums
Jun 13, 2008· With regular asphalt base mix or top mix, there is stone, sand and liquid asphalt and probably more, creating a very dense material. With this 'popcorn' (doubt it is a trade name), mix there appears to be alot less sand and fines in this mix as compared to the others and a higher ratio of stone, creating many voids, allowing the water to drain ...