The word “Asphalt” can be a very confusing term for most laypeople because it is used interchangeably with several other words to mean the same or different things. Now that’s not very clear is it? Let’s see if we can clear this up a bit. For most people “asphalt” and “blacktop” are terms used to describe what engineers and the asphalt industry call; “asphalt concrete” or “bituminous concrete”. Hopefully the following definitions and explanations will shed some light on the subject.