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Brixham Circle ACE Fiber Overlay Reinforcement

Introduction Challenge Solution Installation Results Gallery The Nilex Advantage

ACE Fiber brings cost-effective strength, crack resistance and long life to a residential road.

Like all cities, Castle Pines, Colorado, needs to ensure its roadway rehabilitation budget covers as many miles as possible. The choice of reinforcing material for this work affects costs directly as well as the labor and equipment required for site preparation and installation. The City’s maintenance program needed a long-lasting and economical solution that would be easy for crews to work with.


Castle Pines, Colorado



Project Partners

Owner: City of Castle Pines
Contractor: Schmidt Construction Company
Completion Date: July 2017


The initial rehabilitation plan, which included full-depth patching, product installation and two-inch overlay, was achievable but would mean fewer neighborhoods covered in the 2017 construction season. The Brixham Circle neighborhood is a two-lane two block stretch that was next on the program list. The project contractor recommended a solution that would reduce the cost-per-square meter from roughly $6-$7 down to $2.


As a company built on innovation and an understanding of customer needs, Nilex introduced the ACE Fiber roadway solution in 2016. ACE Fiber combines Aramid micro-fibers and Sasobit wax to create a three-dimensional reinforcement solution uniquely suited to the high temperatures found in Hot Mix Asphalt (HMA). Aramid provides 400,000 psi tensile strength that combats rutting from loads under summer heat and winter expansion/contraction cracking. ACE Fiber can be installed by any HMA contractor, and is easily added by vacuum line directly at the HMA plant. Over 18 million Aramid fibers are dispersed in each ton of HMA. Direct addition to the HMA mix eliminates the separate installation step other solutions require.


For the plant operator, the only difference in HMA creation for this job was the measuring and addition of ACE Fiber, using a vacuum line. Nilex was able to provide an onsite QA/QC mixing technician for the client, blending 576 equivalent tons of ACE into the HMA mix. At the end of every ACE Fiber project, a technician provides a certified Professional Engineer-stamped mixing report, verifying the fibers were mixed properly.

During installation, crews experienced no changes to the usual procedures for a non-reinforced installation. The six-hour paving job was completed with a typical crew of eight, using the same equipment they use for other HMA installations.


For the owner, ACE Fiber proved a cost-effective means of reducing cracks and future repair work for a Hot Mix Asphalt section of residential roadway. Compared to the alternatives considered, savings from the ACE Fiber installation allowed the client to get more sections done for the same overall budget.


The Nilex Advantage

Nilex is committed to unearthing better results. Whether it’s for a civil, resource or environmental project, we offer the latest engineered and technically superior materials and techniques to save our customers time and money, and minimize the need to move or remove earth, and reduce the need for granular materials.

With over 35 years experience, a long-standing commitment to the environment and highly qualified staff, Nilex delivers the products and technologies that give clients an economic advantage with environmental benefit.

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