Hot Mix Asphalt Additives
The effects of moisture damage on our roadways is well documented and as we all know oil and water do not mix. Coating aggregate with moisture is a very simple process, however, achieving good coating with asphalt can be extremely difficult especially if that aggregate is siliceous in nature.
Consider the amount of water present in aggregate stockpiles weeks after a heavy rainfall event. Since asphalt is used as a binding agent and road system, it is of the utmost importance that the asphalt binder fully coat and maintain a consistent bond throughout the life cycle of the asphalt pavement. Early deterioration of this bond is called stripping and can lead to premature road failures, safety issues and high costs for taxpayers.
The proper use of anti-stripping agents improves the bond between asphalt and aggregate thus improving the long-term stability of the road. Without the use of asphalt additives these roads would have failed prematurely resulting in costly repairs and user cost delays. In the worst case scenario, Departments of Transportation could have required the removal and replacement of the pavement.