Download or read book Polymer Modified Asphalt Properties Related to Asphalt Concrete Performance written by JH. Collins and published by . This book was released on 1987 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical properties of asphalts containing styrenic block copolymers and properties of dense-graded asphalt concrete produced from these binders are presented. Materials studied include unmodified AC-5 and AC-20 asphalts and AC-5 containing 3 and 6% styrenic block copolymers.

Download or read book Asphalt and Polymer Modified Asphalt Properties Related to the Performance of Asphalt Concrete Mixes written by and published by . This book was released on 1988 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asphalt Mixture Components written by and published by . This book was released on 1998 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Polymer Modified Asphalt in Hot Mix Pavements written by Charles Ifft and published by . This book was released on 1989 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer modified asphalts have recently been the focus of much attention in the U.S. due to claims that polymer additives will lengthen the life of an asphalt pavement. Much of the published research on this topic has been concentrated on the effects of polymer modifiers on binder and mixture properties. The goal of this testing is to predict from laboratory testing the actual field performance of an asphalt concrete. Over the years, specifications have been developed for conventional asphalts that allow pavement performance to be predicted from certain binder tests. These conventional binder tests do not fully address the special characteristics of polymer modified asphalt binders and need revision to be an effective tool in predicting pavement service life. This paper presents the findings of a two-part laboratory research program intended to relate binder and mixture properties of polymer modified asphalts. The preliminary testing involved five asphalt binder types and a variety of binder and mixture tests. Promising test procedures were further investigated in the final testing program where ten asphalt binders were examined. Simple linear regression was used to determine the strength of a relationship between pairs of binder properties and mixture properties. The preliminary testing showed penetration, toughness and tenacity, and force ductility to have the most promise in predicting mixture performance. The final testing contained enough data to be analyzed with both simple linear regression and multiple regression. Penetration, toughness and tenacity, force ductility again were the test procedures that had binder properties that correlated well with mixture properties.

Download or read book Special Polymer Modified Asphalt Cements written by Donna S. Harmelink and published by . This book was released on 1997 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study evaluated and compared the effectiveness of polymer-modified asphalt mixes in improving the performance of the roadway in relation to rutting and cracking as compared to our standard mixes without modified binders. The addition of various polymers used in this study did not enhance the rut resistance potential of the mix, however the addition of the polymer did reduce the amount of transverse and longitudinal cracking to some extent.

Download or read book Polymer Modified Asphalt Binders written by Kenneth R. Wardlaw and published by ASTM International. This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Download or read book Rapra Review Reports written by and published by iSmithers Rapra Publishing. This book was released on with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Physical and Thermodynamic Properties of Neat and Polymer Modified Asphalt Binders written by Lawrence Michael France and published by . This book was released on 1997 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Modification written by Graham G. Swift and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of an ACS-PMSE Division Symposium held in Orlando, Florida, August 21-25, 1996

Download or read book Properties of Polymer Modified Binders and Relationship to Mix and Pavement Performance written by and published by . This book was released on 1995 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Physical Properties of Asphalt Cement Binders written by John C. Hardin and published by ASTM International. This book was released on 1995 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dozen papers from a December 1993 symposium in Dallas/Fort Worth, Texas. Among the topics are why the new proposed rheological properties of asphalt binders are required and how they compare to conventional properties, the development and use of the SHRP direct tension specification test, oxidatio

Download or read book Long term Performance Evaluation of Polymer modified Asphalt Concrete Pavements written by William E. Elmore and published by . This book was released on 1993 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the five-year study performed to investigate the behavior of binders and asphalt mixtures containing polymer modifiers, it was determined that an insufficient amount of time had elapsed to allow any determinations to be made based upon the special field test sections. The study reported herein was to extend that initial time and to study in depth those special test sections, using visual observations coupled with resulting tests performed on samples extracted from the sections and comparisons with the original data developed in the original research. The research includes laboratory testing of field samples, determining the aging effect on the control and modified binders and corresponding effect on the mixtures, and visual evaluations. Retained samples of the original asphalts were also evaluated for potential performance as determined by the performance-based asphalt binder specification developed by the Strategic Highway Research Program. Four hot mix pavement field projects were constructed in the Tyler, Lufkin, San Antonio, and Childress Districts (10, 11, 15, and 25, respectively), and two seal coat projects were placed in the Odessa and Bryan Districts (6 and 17).

Download or read book Improved Rheological Properties of Polymer Modified Asphalts written by GN. King and published by . This book was released on 1987 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer modification dramatically changes the rheological properties and therefore the performance of asphalt cement. This study discusses conventional and new methods of specification testing for the polymeric elastic and tensile properties. Five asphalts were tested before and after polymer modification for penetration, viscosity, low temperature ductility, pen-vis numbers (PVN), and aging indices. Tensile strength, force ductility, toughness and tenacity, dropping ball, creep response, elastic recovery by ductilometer, torsional recovery, sliding plate rheometry, Dekker elastic recovery, and temperature susceptibility test methods are also examined. It is concluded that current asphalt cement specifications should be supplemented with tests for tensile strength and elastic recovery if the relative performance properties of polymerized asphalt cements are to be compared.

Download or read book Laboratory Study of Test Methods for Polymer Modified Asphalt in Hot Mix Pavement written by and published by . This book was released on 1989 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Polymer Modification on the Properties of Asphalt Concrete written by Alekh S. Bhurke and published by . This book was released on 1999 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Performance Characteristics and Behavior of Polymer modified Asphalt Concrete Mixtures written by Fadi M. Jadoun and published by . This book was released on 2001 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modified Asphalt written by Jose Luis Rivera Armenta and published by BoD – Books on Demand. This book was released on 2018-09-19 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asphalt modification is an important area in the development of new road and pavement materials. There is an urgent demand for road materials that can minimize fracture at low temperatures and increase resistance to deformation at high temperatures. The function of asphalt is to bind aggregate to protect it from water and other harmful agents. In the beginning asphalt was ideal for this purpose, but recently traffic loads have increased and environmental factors have deteriorated more rapidly than before. Asphalt is a byproduct of crude oil in the refining process, and it is considered a complex heterogeneous mixture of hydrocarbons. Asphalt modification has become an important research area, using several methods and new materials as modifiers.