Download Free Mix Design Procedures And Considerations For Polymer Modified Asphalt Compatibility And Stability Book in PDF and EPUB Free Download. You can read online Mix Design Procedures And Considerations For Polymer Modified Asphalt Compatibility And Stability and write the review.

"ASTM Publication Code Number (PCN) 04-011080-08. - "Sponsored by ASTM Committee D-4 on Road and Paving Materials."-- Foreword. - Includes bibliographical references and indexes. - Electronic reproduction; W. Conshohocken, Pa; ASTM International; 2011; Mode of access: World Wide Web; System requirements: Web browser; Access may be restricted to users at subscribing institutions.
A five-year study has been performed to investigate the behavior of binders and asphalt mixtures containing polymer modifiers. The polymers were SBS, SBR, EVA, Ground Rubber, and polyolefin. These materials were used separately and in combinations with each other to change the characteristics of the binders and asphalt mixtures. The research included laboratory experiments to characterize the materials, and field projects to ascertain their performance. Four hot mix asphalt projects were conducted in Districts 15, 11, 25, and 10 in Texas, and two seal coat projects were constructed in Districts 6 and 17 in Texas. The testing results of the field and laboratory samples are presented in this report.
Ohio Department of Transportation has adopted the hot mix asphalt concrete containing polymer modifiers for use in the interstate highway pavement. Among the various reasons cited for the adoption of polymer modifiers are the favorable field experiences by ODOT, extensive literatures reporting enhanced performance, such as rutting resistance, low temperature thermal cracking resistance, and possibly fatigue endurance. However, despite these favorable findings, there are still cases involving premature failure of hot mixtures containing polymer modifiers. Concerns regarding optimum polymer content, compatibility between polymer additives and asphalt cement, proper mixing and compaction procedure remain to be resolved. Furthermore, performance based specifications to ensure production of desirable final asphalt concrete product require additional development. Questions regarding the suitability of Superpave binder testing procedures for the polymer-modified binders need to be clarified.