Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects
The high and low-temperature performance of five hydraulic bitumen binders was evaluated using the dynamic shear rheometer (DSR) test, infrared spectrum test and direct tensile (DT) test. These hydraulic bitumen binders were respectively applied for several pumped storage power stations (PSPS) proje...
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MDPI AG
2022-03-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/5/1890 |
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| author | Changgen Zou Zhao Hua Liantong Mo Cong Qi Zhixin Liu Yanjun Xie Hao Yu Juntao Ke |
| author_facet | Changgen Zou Zhao Hua Liantong Mo Cong Qi Zhixin Liu Yanjun Xie Hao Yu Juntao Ke |
| author_sort | Changgen Zou |
| collection | DOAJ |
| description | The high and low-temperature performance of five hydraulic bitumen binders was evaluated using the dynamic shear rheometer (DSR) test, infrared spectrum test and direct tensile (DT) test. These hydraulic bitumen binders were respectively applied for several pumped storage power stations (PSPS) projects that were constructed or under construction. In order to relate the bitumen performance to the mixture performance, the slope flow test, three-point bending test and thermal stress restrained specimen test were carried out on hydraulic asphalt mixtures. The test results indicated the DSR rheological master curves can well distinguish the difference of each bitumen binder as well as the effect of polymer modification. Phase angle master curves, black diagrams and infrared spectra all indicated that several penetration-grade hydraulic bitumen binders were not virgin bitumen binders but were modified with relatively lower SBS polymer content when compared with traditional SBS-modified bitumen. When selecting the commonly used Karamay SG70 hydraulic bitumen as a reference, the normal SBS-modified bitumen was superior to other bitumen in terms of low- and high-temperature performance. Several slightly SBS-modified bitumen binders did not always show consistent results, which indicated that slightly modified bitumen may not really have the desired performance as expected. Therefore, SBS-modified bitumen will be more promising when dealing with extremely low or high temperatures. Bitumen performance was well compared with the mixture performance by using the bitumen creep, relaxation and tensile failure strain corresponding to the asphalt concrete slope flow, the maximum bending strain and the failure temperature, respectively. Compared with the traditional penetration, softening point and ductility test, it indicated that the DSR rheological test, creep test, direct tensile test and stress relaxation test can be used as more powerful tools for the characterization and optimization of hydraulic bitumen binders. |
| first_indexed | 2024-03-09T20:32:04Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:32:04Z |
| publishDate | 2022-03-01 |
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| spelling | doaj.art-73310c1d63614352bff792f158556df62023-11-23T23:20:27ZengMDPI AGMaterials1996-19442022-03-01155189010.3390/ma15051890Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station ProjectsChanggen Zou0Zhao Hua1Liantong Mo2Cong Qi3Zhixin Liu4Yanjun Xie5Hao Yu6Juntao Ke7State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaChina Gezhouba Group Municipal Engineering Co., Ltd., Yichang 443002, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaShandong Haiyun Asphalt Co., Ltd., Binzhou 371600, ChinaChina Water Northeastern Investigation Design and Research Co., Ltd., Changchun 130021, ChinaGezhouba Group Testing Co., Ltd., Yichang 443002, ChinaState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, ChinaHubei Yichang Dingcheng Engineering Testing Co., Ltd., Yichang 443002, ChinaThe high and low-temperature performance of five hydraulic bitumen binders was evaluated using the dynamic shear rheometer (DSR) test, infrared spectrum test and direct tensile (DT) test. These hydraulic bitumen binders were respectively applied for several pumped storage power stations (PSPS) projects that were constructed or under construction. In order to relate the bitumen performance to the mixture performance, the slope flow test, three-point bending test and thermal stress restrained specimen test were carried out on hydraulic asphalt mixtures. The test results indicated the DSR rheological master curves can well distinguish the difference of each bitumen binder as well as the effect of polymer modification. Phase angle master curves, black diagrams and infrared spectra all indicated that several penetration-grade hydraulic bitumen binders were not virgin bitumen binders but were modified with relatively lower SBS polymer content when compared with traditional SBS-modified bitumen. When selecting the commonly used Karamay SG70 hydraulic bitumen as a reference, the normal SBS-modified bitumen was superior to other bitumen in terms of low- and high-temperature performance. Several slightly SBS-modified bitumen binders did not always show consistent results, which indicated that slightly modified bitumen may not really have the desired performance as expected. Therefore, SBS-modified bitumen will be more promising when dealing with extremely low or high temperatures. Bitumen performance was well compared with the mixture performance by using the bitumen creep, relaxation and tensile failure strain corresponding to the asphalt concrete slope flow, the maximum bending strain and the failure temperature, respectively. Compared with the traditional penetration, softening point and ductility test, it indicated that the DSR rheological test, creep test, direct tensile test and stress relaxation test can be used as more powerful tools for the characterization and optimization of hydraulic bitumen binders.https://www.mdpi.com/1996-1944/15/5/1890hydraulic bitumenrheological propertiescreep resistancetensile failure strainrelaxation modulusflow slope |
| spellingShingle | Changgen Zou Zhao Hua Liantong Mo Cong Qi Zhixin Liu Yanjun Xie Hao Yu Juntao Ke Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects Materials hydraulic bitumen rheological properties creep resistance tensile failure strain relaxation modulus flow slope |
| title | Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects |
| title_full | Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects |
| title_fullStr | Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects |
| title_full_unstemmed | Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects |
| title_short | Evaluation on the Performance of Hydraulic Bitumen Binders under High and Low Temperatures for Pumped Storage Power Station Projects |
| title_sort | evaluation on the performance of hydraulic bitumen binders under high and low temperatures for pumped storage power station projects |
| topic | hydraulic bitumen rheological properties creep resistance tensile failure strain relaxation modulus flow slope |
| url | https://www.mdpi.com/1996-1944/15/5/1890 |
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