Stone Matrix or SMA. SMA uses much more coarse stone in the mix as being a binder, which resists rutting or deforming in excess of other sorts. It results in a smoother and even more durable street surface but may be around twenty five% dearer to create. Once more, you https://redbottom.us/categories/regular/general/183-preserve-your-pavement-the-essential-guide-to-asphalt-sealcoating