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Frequently Asked Questions

How long do hot-mix polymer modified asphalt pavements last?

What are the best applications for hot-mix polymer modified asphalt pavements?

How much latex should be used to make the best polymer modified asphalt? 

How much does polymer modified asphalt cost?


This is a difficult question to answer as the asphalt is only one of several ingredients that make up a hot-mix asphalt pavement. Obviously, workmanship and an appropriate pavement selection have a significant influence on the success of any pavement. Generally properly constructed polymer modified asphalt pavements typically last at least 50% longer than the same pavement paved with conventional asphalt. The use of polymer modified asphalt makes possible the construction of thin overlays and other specialized mixes that can last even longer, saving tax dollars and inconvenience to motorists. See Asphalt Contractor article Asphalt Keeps Going and Going for more information.

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Polymer modified asphalt can be used to enhance pavement performance for essentially any conventional hot-mix asphalt application. Due to the toughness imparted by the polymer to the asphalt, the most dramatic successes for polymer modified asphalt is for applications in which the binder is greatly stressed. These applications include open graded friction courses, thin sand asphalt wearing courses, high traffic count pavements, interstates, intersections, ramps, pavements exposed to excessive heat or cold and pavements that are often stay damp such as those found in tunnels, under bridges and tree lined residential streets.

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The amount of latex to be used varies depending upon the application. For most hot-mix paving 3% by weight of latex solids is typically added to 97% asphalt solids. In typical dense graded asphalt approximately two thirds of a gallon of latex is added per ton of hot mix. Specifications requiring SHRP grade “bumping” or those having special elastomer tests, the quantity of latex could vary from 2% to 5% of the asphalt content.

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Polymer modified asphalt does not cost you money; it saves you money. Yes, you will pay more for a ton of hot mix. Typically you will pay about 15% to 20% more per ton of mix. In many applications, pavements can be laid thinner so that the initial cost can be even less than conventional asphalt paving. In any case, the proven added longevity will yield big savings as polymer modified pavements typically last at least 50% longer.


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| Hot Mix | Suggested Hot Mix Specifications |

| Crack Seal | Suggested Crack Seal Specifications |

| Surface Treatments | Suggested Surface Treatment Specifications |

| FAQ | Company History | Contact Us |