The Stabilized Base Course

The aggregate base course material was treated with SSPCo’s EMC SQUARED® Stabilizer, an economical concentrated liquid stabilizer treatment for base course materials that increases stability without the excessive rigidity (cracking) typical of cement treated base (CTB) materials. In testing conducted at University of Nevada Reno (UNR), the EMC SQUARED System treatment improved the resilient modulus of base course material by a factor of more than 5 times. Materials engineering consultants Professional Service Industries (PSI) provided the following layer equivalency factors and commented that the treated base course had a layer equivalency factor and load carrying capacity approximately equivalent to that of typical hot mix asphalt pavement.

 

The Pavement Surface Course

The access roads, trail system, parking areas and work areas at the Las Vegas Springs Preserve are surfaced with a NaturalPAVE® XL Resin Pavement mixture that blends with the tannish white local soil and rock materials and provides “cool pavements” for a site where 115°F  summertime temperatures are common. The NaturalPAVE XL Resin Pavement was tested throughout the design and construction process. Using test procedures standardized for flexible pavements such as hot mix asphalt, materials engineers verified that the NaturalPAVE XL Resin Pavement demonstrated significantly higher stability values (resistance to rutting) than typical hot mix asphalt.

The Structural Section

Resilient Modulus testing evaluates the response of a pavement or base course material to dynamic loading. This test method is regarded by AASHTO (American Association of State Highway and Transportation Officials) as the primary factor in characterizing materials for highway pavement applications.

Resilient Modulus Results and Layer Equivalency Factors
Sample ID	Average Resilient Modulus (psi)*	Layer Equivalency Factor**
Aggregate base with EMC SQUARED	272,500	0.35***
Untreated Aggregate Base	51,000	0.10