Effects of Filler–Bitumen Ratio and Mineral Filler Characteristics on the Low-Temperature Performance of Bitumen Mastics
| العنوان: | Effects of Filler–Bitumen Ratio and Mineral Filler Characteristics on the Low-Temperature Performance of Bitumen Mastics |
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| المؤلفون: | Yazhi Xu, Chuanfeng Zheng, Dan Lv, Ruiming Li, Linlin Zou |
| المصدر: | Materials Volume 11 Issue 7 Materials, Vol 11, Iss 7, p 1155 (2018) |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Filler (packaging), Materials science, 0211 other engineering and technologies, 02 engineering and technology, lcsh:Technology, Article, mineral filler, 021105 building & construction, meso characteristics, General Materials Science, content, Composite material, lcsh:Microscopy, lcsh:QC120-168.85, Mineral, lcsh:QH201-278.5, lcsh:T, Fatigue testing, 021001 nanoscience & nanotechnology, Void ratio, Unit mass, Creep, Asphalt, lcsh:TA1-2040, lcsh:Descriptive and experimental mechanics, Particle size, lcsh:Electrical engineering. Electronics. Nuclear engineering, 0210 nano-technology, lcsh:Engineering (General). Civil engineering (General), bitumen mastics, lcsh:TK1-9971, fixed bitumen, filler–bitumen interaction |
| الوصف: | This study analyzed the effects of the filler&ndash bitumen interaction of the content and the meso powder characteristics of the mineral filler on the low-temperature performance of bitumen mastics. Control strategies for the mineral filler content (filler&ndash bitumen ratio (RFB)) were also determined. Panjin #90 bitumen and styrene&ndash butadiene&ndash styrene polymer-modified bitumen were used in the experiment. Four kinds of limestone powder were used, all of which satisfy the Chinese standard for powder particle size but exhibit different meso characteristics. Each kind of limestone powder was used to prepare bitumen mastic samples under five different RFBs. The meso voids in the unit mass (Vg) of the four kinds of mineral filler were tested on the basis of the principle of the Rigden void ratio. The fixed bitumen&ndash free bitumen ratio in the bitumen mastic samples was determined using Vg, bitumen density, and RFB. The low-temperature cohesive strength of the bitumen mastics was used as the control index for critical failure, whereas variation rates of bending creep stiffness at low temperature were used as the control index for fatigue failure. Results showed that the effects of the filler&ndash bitumen interaction of the content and the meso characteristics of the mineral filler are significant and such effects are determined by the fixed bitumen&ndash free bitumen ratio. The optimal fixed bitumen&ndash free bitumen ratio in the bitumen mastics under two low-temperature conditions (&minus 30 ° C and &minus 10 ° C) can be determined on the basis of the influence of the fixed bitumen&ndash free bitumen ratio on the critical and the failure control indices. Moreover, RFB can be obtained through reverse calculation. The mineral filler content can therefore be precisely controlled, which is crucial for the rational use of mineral filler and for the improvement of the pavement performance of bitumen mastics at low temperatures. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1996-1944 |
| DOI: | 10.3390/ma11071155 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66642a3e10b450ca97bf1df43aff0bc4 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....66642a3e10b450ca97bf1df43aff0bc4 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19961944 |
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| DOI: | 10.3390/ma11071155 |