List of Contributions

​​A client wants to install a 3 inch concrete floor over existing asphalt in a warehouse setting. Would you recommend an epoxy between the new concrete and old asphalt layer? or can the concrete just be put down over the asphalt? ------------------------------ Christopher Hanna P.E., M.ASCE - ...

​Good Morning Gary, In New Jersey we use this "superpave" designation for our asphalt: Surface course is 9.5M64 (9.5 mm is the aggregate size). Intermediate 12.5M64 Base Course 19.5M64 - So 19.5 mm is the aggregate size. I have never seen a base course with a 1 inch aggregate, usually we use ...