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EFFECT OF CHEMICAL SOLVENTS ON RHEOLOGICAL PROPERTIES OF RECOVERED ASPHALT BINDERS

AbuHassan, Yazeed
http://rave.ohiolink.edu/etdc/view?acc_num=akron1470053704

Abstract Details

, Master of Science in Engineering, University of Akron, Civil Engineering.
Extraction and recovery of asphalt binders is an important procedure, although the rheological properties of the recovered binder may vary from the actual values due to many factors. This study has been conducted to evaluate the effect of different chemical solvents on the rheological properties of the recovered asphalt binder at high, intermediate, and low temperatures excluding the other factors that may affect the results. Five different binders were taken into consideration when this study was conducted, PG 58-28, PG 64-22, PG 64-28, PG 70-22, and PG 76-28, along with three different types of chemical solvents largely used as an industrial solvent, which are Trycoloroethelene (TCE), N-Propyl Bromide (nPB) brand called Entron-AE and Toluene. To catch the effect left by these solvents on the recovered binders, each binder has been dissolved in a specific amount of each of the three chemical solvents individually, the proportions of the solvent to the asphalt binder used was almost equal to the amount of the solvent needed to extract the same amount of binder out of a mixtures using a centrifuge. After leaving it for a while and making sure that the binder is totally dissolved, the binder is then recovered using a normal distillation process called the Abson method. In order to determine whether the age of the binder affects the results obtained from the recovered binders or not, testing has been done on unaged binders, short term aged binders, and long term aged binders, and in order to do that, short term aging has been simulated using the Rolling Thin Film Oven Test (RTFO), and the long term aging has been simulated using the Pressurized Aging Vessel (PAV). Finally, both original and recovered binders were tested at different aging conditions using the Dynamic Shear Rheometer (DSR), and the Bending Beam Rheometer (BBR). Data were used to obtain a full continuous grading of both the original (base) binder and the recovered binder for the five different binders used in this study using the three chemical solvents. Direct Comparisons were also made to compare the results of the original binder to the recovered binders using Trichloroethylene (TCE), Normal Propyl Bromide (nPB), and Toluene. Results showed that TCE will exhibit high softening effect unlike the Toluene which showed reasonable and representative data compared to the base binder, while nPB kept on giving un consistent data without a specific pattern.
Ala Abbas, Dr. (Advisor)
Anil Patnaik, Dr. (Committee Member)
Zhe Luo, Dr. (Committee Member)
Civil Engineering
Extraction; Recovery; Solvent; Effect; rheological; physical; properties; recovered; asphalt; binder; RAP; RAS; TCE; nPB; Toluene; DSR; BBR

Recommended Citations

Citations

  • AbuHassan, Y. (n.d.). EFFECT OF CHEMICAL SOLVENTS ON RHEOLOGICAL PROPERTIES OF RECOVERED ASPHALT BINDERS [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1470053704

    APA Style (7th edition)

  • AbuHassan, Yazeed. EFFECT OF CHEMICAL SOLVENTS ON RHEOLOGICAL PROPERTIES OF RECOVERED ASPHALT BINDERS. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1470053704.

    MLA Style (8th edition)

  • AbuHassan, Yazeed. "EFFECT OF CHEMICAL SOLVENTS ON RHEOLOGICAL PROPERTIES OF RECOVERED ASPHALT BINDERS." Master's thesis, University of Akron. Accessed APRIL 18, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=akron1470053704

    Chicago Manual of Style (17th edition)

akron1470053704
406
© , some rights reserved.Creative Commons License EFFECT OF CHEMICAL SOLVENTS ON RHEOLOGICAL PROPERTIES OF RECOVERED ASPHALT BINDERS by Yazeed AbuHassan is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.