Spray Applied Polymer Surface Seals - TSP2

Test Section Layout
Initial Plan
Year Zero – Initial Application
100 200 ft ft 400-ft Transition Transition Transition
Year Two – Second Application
Year Four – Third Application
Outlined areas = application of material that year
Shaded areas = previously treated sections
Material 1 Material 2 Material 3
Additionally, 500-ft section left untreated as control
THE FIELD TEST PLAN
A test plan was laid out to apply test sections of several commercially available
emulsions to a number of different pavement and climate types. The initial
placement included 200-ft sections of the standard fog seal product used in that
state as well as other products suppliers wished to include in the study. Several
companies donated their materials, field support and application. 400-ft sections
were left open between each section for future application, and there was at least
one 500-ft control section left untreated in each project. The plan was to reapply
sections of the same products on previously treated and untreated sections at twoyear
intervals with a variety of performance and material testing on the surface of
and cores from test and control sections. Because of a change in leadership of the
project, the unavailability of some products used for initial trials, and added testing
of the effects on skid resistance of sanding on some of the sections, this plan was
later altered.
50