Using Polymer Modified Asphalt Emulsions in Surface Treatments A ...

websites; the Asphalt Institute’s on-line document collection; the Federal Highway
Administration’s (FHWA) technical document and reference collection; and the
Google search engine. Numerous pavement and polymer research publications such
as the publications of the Transportation Research Board (TRB) and the Asphalt Paving
Technologists (AAPT); the International Journal of Pavement Engineering; the Journal
of Materials in Civil Engineering; Polymer Engineering and Science Journal; and the
Journal of Applied Polymer Science, were also examined.
Although this review focuses principally on polymer modified asphalt emulsions (PME),
literature and research dealing with direct-modified binders (such as those used in hot
mix) have also been utilized in cases where the results could reasonably be
extrapolated. For example, some polymer modifiers occur only in solid form, and must
be added directly to the asphalt regardless of whether the binder will be hot-applied, or
emulsified; whereas liquid modifiers may be added either to the soap mix; co-milled; or
in some cases, post-added to the emulsion mix either at the plant or in the field. Thus,
research dealing with the impact of polymer modification on asphalt binders may have
some implications with respect to both hot mix and emulsion applications.
1.4 Report Organization
Section 1 presents an introduction and overview of this report. The results and
discussion of the literature review are provided in Section 2. Section 3 presents the
recommendations for the laboratory testing program and specifications, and a summary
of the recommended application guidelines derived from the literature review and
laboratory study will be provided in the final report following completion of the laboratory
study.
3