| Neither uses bituminous tars or asphalts, neither requires painting, and both age to beautiful patinas. |
| Rheological characteristics of asphalts are highly temperature dependent and are considered to be major contributory factors to the pavement distresses mentioned above. |
| Continuing adoption of performance-based specifications for road projects will generate demand for polymer-modified asphalts. |
| Other families include porous concretes and asphalts being developed by engineers and landscape architects. |
| A model comes in handy when comparing two different kinds of asphalts, giving road engineers a tool with which to choose an appropriate material. |
| Repsol has also added more divisions after its initial success, now covering the Lubricants, Paraffins, By-Products and Sulphates, and Asphalts divisions. |
