Abstract
The Kansas Department of Transportation (KDOT) currently monitors up to 19 parameters for the Superpave mixtures under its Quality Control/Quality Assurance (QC/QA) program. Data from six Superpave projects of KDOT was analyzed in this study to find the optimum combination of volumetric parameters, air voids and Voids in Mineral Aggregates (VMA), for 19.0 mm nominal maximum size Superpave mixtures with and without reclaimed asphalt pavement (RAP) materials. The results show that the optimum mixtures have air voids close to or equal to 4% which is the target value, and VMA above 13%, but not higher than 14%, and dust proportion equal to 0.9%. The suggested working range for the asphalt binder content from the optimization analysis is - 0.5%, which is 67% larger than the currently specified range of - 0.3% by KDOT. Other Superpave mixture parameters were found within the limits originally proposed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
