> asphalt, which is just concrete (cement, sand and lime) with some of the cement replaced with oil/tar. As far as I know, asphalt concrete doesn't contain any

> asphalt, which is just concrete (cement, sand and lime) with some of the cement replaced with oil/tar. As far as I know, asphalt concrete doesn't contain any portland cement, at least usually. It's just gravel, sand, and bitumen/asphalt/tar.