(top) Leoni Meadows Camp entrance in Grizzly Flats, CA; (bottom) Satellite image of Leoni Meadows Camp grounds
About the Location
Located at Leoni Meadows Camp in the wooded community of Grizzly Flats, CA, this project focused on revitalizing 35-year-old asphalt roadways, and preserving a concrete go-kart attraction in its good condition. The environment features significant tree coverage, which limits UV exposure but does not eliminate long-term aging.
The project was completed in partnership with Dennis Helmer of BioPave Services LLC and encompassed approximately 200,000 square feet of asphalt and concrete surfaces. The primary objective was protection, preservation and material recycling—extending pavement life while minimizing full reconstruction.
At a Glance
The Challenge: The project required solutions that could address both the aging 35-year-old asphalt and the newer concrete surfaces, while prioritizing material reuse and environmental responsibility without full-depth replacement.
The Solution: Four BioSpan products were deployed across the site to soften, restore, recycle, bond, and protect existing materials—revitalizing surfaces and enhancing sustainability. These products (BioSpan’s BioPrep, BioTak, Activate, and OptiSeal) were applied using a two-man team to implement low-cost and high-impact solutions.
The Result: The Leoni Meadows Camp was extremely satisfied with the outcome of the project.
"The transformation of our pavement at Leoni Meadows Camp has been remarkable. Before the project, our asphalt was showing significant age. BioPave and BioSpan delivered a sustainable, cost-effective solution that avoided full replacement. The surfaces now look and perform like new. Knowing that we extended the life of both our asphalt and concrete while minimizing environmental impact is a huge win for us."
— Leoni Meadows Camp Management
“This was a highly effective use of BioSpan products to revive asphalt that was more than 35-years-old, essentially creating a polymer-modified sub-surface that should now last much longer”.
— Dennis Helmer with BioPave Services LLC., BioSpan distributor
Project Breakdown
Surface Conditioning and Resurfacing:
BioSpan’s BioPrep was sprayed to soften the aging asphalt, which was then milled using a grinding attachment, followed by a second BioPrep application. After pad-foot compaction, the surface exhibited the appearance of newly placed pavement, as BioPrep improved the softening and rejuvenation of aged binder. The project was then overlaid with fresh Hot Mix Asphalt (HMA) incorporating durable fibrous inclusion.
(left) 35-year-old asphalt pavement before treatment; (right) new asphalt pavement reconditioned with BioSpan’s BioPrep and overlayed with HMA
RAP Recycling:
Approximately 30 tons of graded RAP from a nearby quarry were treated and blended directly with a mixture of BioSpan’s solutions to repave pathways between resident buildings. Activate was initially used to restore aged millings, with the addition of BioTak to further enhance RAP replenishment and workability. This combination demonstrated adaptability when managing moisture-sensitive RAP
(left) Piles of untreated reclaimed asphalt pavement (RAP) millings sourced from a local quarry, (right) RAP mixed with Activate and BioTak and compacted into a durable pavement
Concrete Preservation:
BioSpan’s OptiSeal was applied to protect a newer concrete go-kart raceway from the continued use of salt treatments and the outdoor environment. The OptiSeal application showed quick penetration and little disruption, while leaving the surface unchanged and protected.
(above) Dennis Helmer spraying BioSpan’s OptiSeal Concrete Preservation to the outdoor concrete go-kart track
To learn more about the BioSpan solutions in this project, please check out the links below.
Activate RAP Millings Restorer