Journal article
Determining the Optimum Content and Stirring Time of Emerging Dry Polymer for Asphalt Using Rotational Viscometer, Dynamic Shear Rheometer, and Atomic Force Microscopy
Advances in civil engineering materials, Vol.7(1), pp.33-45
01/01/2018
DOI: 10.1520/ACEM20170077
Abstract
During the past decades, styrene-butadiene-styrene (SBS) triblock copolymer has been used to produce Polymer-Modified Asphalt (PMA) to make asphalt pavements more resistant to both rutting at a high temperature and cracking at a low temperature. However, the process of adding SBS copolymer to asphalt requires additional equipment such as high-shear mixing equipment, and the produced PMA is required to be stored in a separate tank. To overcome these limitations associated with the production handling, the pelletized SBS-based compound was developed. It can be added to the pugmill using a dry process together with asphalt and aggregates at the asphalt plant. The main objective of this study is to identify the proper melting time for the pelletized SBS-based compound in asphalt and to determine the optimum amount of the pelletized SBS-based compound. In this study, to characterize the pelletized SBS-based compound, atomic force microscopy (AFM), a dynamic shear rheometer (DSR), and a rotational viscometer (RV) were used. Based on the laboratory test results, optimum quantity and mixing time of pelletized SBS-based compound were identified.
Details
- Title: Subtitle
- Determining the Optimum Content and Stirring Time of Emerging Dry Polymer for Asphalt Using Rotational Viscometer, Dynamic Shear Rheometer, and Atomic Force Microscopy
- Creators
- Ashkan Bozorgzad - University of IowaYongjoo Kim - Korea Institute of Construction Technology, 283, Goyang-daero, Ilsanseo-gu, Goyang-si, Gyeonggi-do 10223, Republic of KoreaHosin “David” Lee - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Advances in civil engineering materials, Vol.7(1), pp.33-45
- DOI
- 10.1520/ACEM20170077
- ISSN
- 2379-1357
- eISSN
- 2165-3984
- Language
- English
- Date published
- 01/01/2018
- Academic Unit
- International Programs; Civil and Environmental Engineering
- Record Identifier
- 9984197539302771
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