Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Determination Of Rheological Properties Of Modified Asphalt Binder Incorporating With Sasobit Additive PDF full book. Access full book title Determination Of Rheological Properties Of Modified Asphalt Binder Incorporating With Sasobit Additive.
| Author | : Ahmad Raad Hassan |
| Publisher | : |
| Total Pages | : 79 |
| Release | : 2014 |
| Genre | : Asphalt |
| ISBN | : |
| Author | : Ali Jamshidi |
| Publisher | : |
| Total Pages | : 734 |
| Release | : 2013 |
| Genre | : Asphalt |
| ISBN | : |
| Author | : Hainian Wang |
| Publisher | : |
| Total Pages | : 11 |
| Release | : 2012 |
| Genre | : Burgers model |
| ISBN | : |
Warm mix asphalt (WMA) has generated a lot of interest worldwide based on the potential to realize environmental benefits related to lower production temperature and safe disposal of crumb rubber (tires). However, barriers to complete implementation of WMA technology still exist because of the lack of understanding of how different additives affect the performance of crumb rubber modified (CRM) binders. This paper investigates the effects of three WMA additives and crumb rubber concentration on the low-temperature performance of the CRM binders. The WMA additives used in this study were Sasobit, RH, and Advera, and the ambient 40 mesh tire rubber at different concentrations of 10 %, 15 %, 20 %, and 25 % by the weight of asphalt binder were applied in this paper. Burgers model was used to describe the relationship between deformation and time for rubberized WMA binder. The models parameters such as relaxation time, delay time, creep stiffness, m-value and m/S(t)-ratio were applied to evaluate the low-temperature performance of the rubberized WMA binders. Furthermore, the statistical analysis of variance (ANOVA) technique was applied to quantify the effects of different WMA additives and crumb rubber concentrations on the rubberized asphalt binders' low-temperature performance. It was found that Advera could be used to enhance the low-temperature performance by enhancing the stress relaxation, whereas RH and Sasobit did not exhibit this ability, thereby weakening the low-temperature performance of the CRM binders. The crumb rubber concentration could significantly increase the rubberized WMA binders' low-temperature performance by influencing the flexural creep stiffness of the control binders.
| Author | : Justin Michael Sneed |
| Publisher | : |
| Total Pages | : 300 |
| Release | : 2008 |
| Genre | : Asphalt |
| ISBN | : |
| Author | : Akhtarhusein Asgarali Tayebali |
| Publisher | : |
| Total Pages | : 460 |
| Release | : 1990 |
| Genre | : Asphalt |
| ISBN | : |
| Author | : Ahmed Wsoo Hamad |
| Publisher | : |
| Total Pages | : 122 |
| Release | : 2014 |
| Genre | : Asphalt |
| ISBN | : |
| Author | : John C. Hardin |
| Publisher | : ASTM International |
| Total Pages | : 237 |
| Release | : 1995 |
| Genre | : Asphalt cement |
| ISBN | : 0803119887 |
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
| Author | : Andres Rangel |
| Publisher | : |
| Total Pages | : 314 |
| Release | : 1998 |
| Genre | : |
| ISBN | : |
| Author | : S. Anjan kumar |
| Publisher | : |
| Total Pages | : 12 |
| Release | : 2012 |
| Genre | : Aging |
| ISBN | : |
This paper presents the results of investigations on the rheological properties of modified asphalt binders and their influence on the performance of asphalt mixes. Asphalt mixes with modified binders such as styrene butadiene styrene polymer, crumb rubber, natural rubber, and waste plastics were evaluated for their rheological properties and compared to the properties of asphalt mixes with unmodified VG30 (viscosity grade) asphalt binder. The dynamic modulus values and rutting characteristics of the asphalt mixes were studied with due consideration to different levels of aging and temperature variations. Studies on the rheological properties showed that the energy dissipated by unmodified asphalt (VG30) binder is higher than that of modified asphalt binders. Long-term aged natural rubber and waste plastic modified asphalt binders showed significant increase in the properties compared to unmodified asphalt binder (VG30). Reduced temperature susceptibility of polymer modified asphalt binder showed that only polymer modification can enhance both high temperature rutting resistance and low temperature thermal cracking resistance of asphalt mixes. The transient nature of polymer modified asphalt mix from viscoelastic solid-like to viscoelastic fluid-like condition is significantly shifted to higher temperature compared to that of the mix with unmodified asphalt binder. Aging and rutting indices showed that rubber modified asphalt mixes are highly susceptible to aging. Statistical analysis of test results showed that the process of modification of asphalt binder, aging, and temperature during the test influence the rheological and rutting characteristics of asphalt mixes significantly. Correlation between the asphalt binder properties and its influence on the rutting resistance are found to be statistically significant. The analysis using least significant difference showed that polymer modified asphalt binder significantly improves the aging and rutting resistance of asphalt mixes compared to unmodified asphalt binder.
| Author | : Huining Yin |
| Publisher | : |
| Total Pages | : 12 |
| Release | : 2009 |
| Genre | : Asphalt |
| ISBN | : |
