What are the different levels of asphalt?
There are three different grades available in asphalt. The grades available are I-2, also known as base; I-5, known as top ;and the I-4 or commercial top grades. The difference in the tree grades are that the I-2 or base consists of ¾ inches of stone. The base grade is generally used in corn stabilizing level. What are 3 types of asphalt? There are three main types of asphalt: Hot Asphalt, MC Cold Mix, and UPM.