Frequently Asked Questions

How much RAP can be used with REARM HR™?

REARM HR™ is designed to accommodate up to 50% RAP, but we may be able to do more in certain markets. However, in some markets, even 50% RAP is not possible. It all depends on RAP binder quality and stiffness, balanced with available binder options. For instance, in Arizona we will be thrilled to have a REARM HR™  70/10 mix with 30% RAP that meets the performance of a 70/10 with 10% RAP.

The amount of RAP is limited by local RAP and the contractors ability to control and dry the RAP.

How does REARM HR™ perform?

REARM HR™ high RAP mix is designed to meet local balance mix design (BMD) requirements. They KEY is that BMD tests are used to meet rutting and cracking criteria. REARM HR™ can be designed to exceed the performance of current mixtures but using more RAP!

How difficult is it to dose REARM HR™ at the asphalt plant?

Dosing for REARM HR™ is easy at the plant. Precision pumps manage the liquid and Surface-Tech’s specialized automated fiber dosing machine delivers the fiber.

Is REARM HR™ cost effective?

REARM HR™ is extremely cost effective. In most cases, REARM HR™ will equal the performance of a low RAP mix at a lower cost of manufacture. If REARM HR™  is engineered for higher performance, the resulting mix should be cost neutral.

What are the sustainability benefits using REARM HR™?

REARM HR™ delivers sustainability through the combination of increased recycled materials and high performance. REARM HR™ lowers the carbon footprint of pavement, while delivering a higher-value, longer-lasting pavement to the taxpayer, owner, and traveling public.

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