Spray Applied Polymer Surface Seals - TSP2

Fog Seal
Field Test Methods
Pavement permeability
Emulsion infiltration
Surface modulus
Surface texture
Friction
FIELD AND LABORATORY TESTING
The original plan called for tests of permeability, friction, surface texture, spectral
wave analysis, chemical and physical properties of cores, roughness, texture, rut
depth and noise characteristics. Based on early results and the constraints of the
projects, the original test plan was modified. Some tests were discontinued, and
others added as experimental findings dictated. Numerous field and laboratory tests
were evaluated in this study. The full results will be posted on the project website.
([i])
Because of the importance of surface friction to the usability of such seals, the
researchers felt it was important to have an easy-to-run, on-site friction test. After
preliminary testing, the portable Circular Texture Meter (CTM) ASTM E-2157 and
Dynamic Friction Tester (DFT) ASTM E-1911 were selected for use on all the test
sections. Some sites were also tested with a conventional skid trailer following
ASTM E-274, Standard Test Method for Skid Resistance of Paved Surfaces Using a
Full-Scale Tire. Dr. Soheil Nazarian of the University of Texas at El Paso ran
Portable Seismic Pavement Analyzer (PSPA) testing to monitor short term change
in the modulus on three of the initial projects.
([i]) Spray Applied Polymer Surface Seals: Tests and Specs.
http://www.pavementpreservation.org/fogseals/Pages/Tests_&_Specs.htm.
Accessed July 16, 2007.
69