Influence of direct coal liquefaction residue on viscoelastic properties of asphalt mortar
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摘要: 以SK-90沥青为基质沥青, 分别制备粉胶比为1.0、煤直接液化残渣(DCLR)掺量(质量分数)分别为5%、10%、15%、20%下的DCLR改性沥青胶浆和SK-90沥青胶浆。采用动态剪切流变试验和弯曲梁流变试验, 对比分析了DCLR对沥青胶浆车辙因子、疲劳因子、蠕变劲度模量和蠕变速率等因素的影响, 揭示了DCLR对沥青胶浆黏弹性能的影响规律。试验结果表明: DCLR会显著增强沥青胶浆的高温性能, 降低沥青胶浆的低温性能和疲劳性能; DCLR提高了沥青胶浆在高温条件下的弹性及在低温条件下的黏性; 在高DCLR掺量下, 沥青胶浆的高温、低温和疲劳性能对温度的敏感度极为显著; 随着DCLR掺量的增加, 沥青及胶浆的适用范围越来越窄; 从应用角度考虑, 建议DCLR掺量不宜大于10%, 沥青及胶浆可适用于沥青路面的中面层。Abstract: SK-90 was taken as base asphalt, filler-asphalt ratio was 1.0, the direct coal liquefaction residue(DCLR)modified asphalt mortars with the DCLR contents as 5%, 10%, 15%, 20% and SK-90 asphalt mortar were produced respectively.The influences of DCLR on asphalt mortar rut factor, fatigue factor, creep stiffness modulus and creep rate were compared by dynamic shear rheometer(DSR)and bending beam rheometer(BBR)tests.The influence rule of DCLR on the viscoelastic properties of asphalt mortar was analyzed.Test result indicates that DCLR can significantly improve the high-temperature properties of asphalt mortar, reduce its lowtemperature and fatigue properties.DCLR also increases the elastic properties of asphalt mortar at high temperature and the viscous properties at low temperature.The high-temperature, lowtemperature and fatigue properties of asphalt mortar with high DCLR content are very sensitive to temperature.With the increase of DCLR content, the application scopes of asphalt and asphaltmortar become more and more narrow.Therefore, in the view of application, the content of DCLR is recommended to be less than 10%, and the asphalt and asphalt mortar can be applied for middle surface layer of asphalt pavement.
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表 1 SK-90沥青的性能
Table 1. Properties of SK-90
表 2 SK-90沥青的组分
Table 2. Compositions of SK-90
表 3 矿粉性能
Table 3. Properties of mineral powder
表 4 DCLR性能
Table 4. Properties of DCLR
表 5 DCLR的组分和元素组成
Table 5. Compositions and elements of DCLR
表 6 DCLR改性沥青的性能
Table 6. Properties of DCLR modified asphalts
表 7 DCLR改性沥青的组分
Table 7. Compositions of DCLR modified asphalts
表 8 回归系数A1、B1值
Table 8. Values of regression coefficients A1and B1
表 9 沥青胶浆的GT值
Table 9. GT values of asphalt mortars kPa·℃-1
表 10 0不同沥青胶浆的疲劳因子
Table 10. Fatigue factors of different asphalt mortars
表 11 1回归系数A2、B2值
Table 11. Values of regression coefficients A2and B2
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[1] 邢明亮, 陈拴发, 关博文, 等. 高粘沥青胶浆低温性能评价与分析[J]. 西安建筑科技大学学报: 自然科学版, 2013, 45(3): 416-421. doi: 10.3969/j.issn.1006-7930.2013.03.019XING Ming-liang, CHEN Shuan-fa, GUAN Bo-wen, et al. Evaluation of asphalt mortar with high viscosity at low temperature[J]. Journal of Xi'an University of Architecture and Technology: Natural Science Edition, 2013, 45(3): 416-421. (in Chinese). doi: 10.3969/j.issn.1006-7930.2013.03.019 [2] 邵显智, 谭忆秋, 邵敏华. 几种矿粉指标对沥青胶浆的影响分析[J]. 公路, 2004(5): 122-124. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200405037.htmSHAO Xian-zhi, TAN Yi-qiu, SHAO Min-hua. Analysis of influence of several indexes of mineral filler on asphalt mortar[J]. Highway, 2004(5): 122-124. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200405037.htm [3] 程永春, 马慧莉, 张鹏, 等. 不同填料沥青胶浆物理力学性能试验[J]. 吉林大学学报: 工学版, 2014, 44(6): 1628-1632. https://www.cnki.com.cn/Article/CJFDTOTAL-JLGY201406015.htmCHENG Yong-chun, MA Hui-li, ZHANG Peng, et al. Experimental study of physical and mechanical properties of asphalt mortars with different fillers[J]. Journal of Jilin University: Engineering and Technology Edition, 2014, 44(6): 1628-1632. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JLGY201406015.htm [4] 于洪兴, 吴琰, 魏连雨, 等. 粉油比对沥青混合料高温稳定性的影响[J]. 公路交通科技, 2005, 22(10): 5-7, 17. doi: 10.3969/j.issn.1002-0268.2005.10.002YU Hong-xing, WU Yan, WEI Lian-yu, et al. The effects of filler to bituminous ratio on stability of asphalt mixes at high-temperature[J]. Journal of Highway and Transportation Research and Development, 2005, 22(10): 5-7, 17. (in Chinese). doi: 10.3969/j.issn.1002-0268.2005.10.002 [5] 吴玉辉. 矿粉含量对沥青胶浆性能的影响研究[J]. 公路交通科技, 2008, 25(9): 35-38. https://www.cnki.com.cn/Article/CJFDTOTAL-GLJJ2008S1011.htmWU Yu-hui. Research on influence of mineral filler content on properties of asphalt mortar[J]. Journal of Highway and Transportation Research and Development, 2008, 25(9): 35-38. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GLJJ2008S1011.htm [6] 李涛, 扈惠敏. 矿粉对沥青胶浆性能的影响[J]. 合肥工业大学学报: 自然科学版, 2013, 36(8): 983-987. doi: 10.3969/j.issn.1003-5060.2013.08.019LI Tao, HU Hui-min. Influence of mineral fillers on properties of asphalt mortar[J]. Journal of Hefei University of Technology: Natural Science Edition, 2013, 36(8): 983-987. (in Chinese). doi: 10.3969/j.issn.1003-5060.2013.08.019 [7] 刘丽, 郝培文, 肖庆一, 等. 沥青胶浆高温性能及评价方法[J]. 长安大学学报: 自然科学版, 2007, 27(5): 30-34. doi: 10.3321/j.issn:1671-8879.2007.05.007LIU Li, HAO Pei-wen, XIAO Qing-yi, et al. High temperature properties and evaluation method of asphalt mortar[J]. Journal of Chang'an University: Natural Science Edition, 2007, 27(5): 30-34. (in Chinese). doi: 10.3321/j.issn:1671-8879.2007.05.007 [8] 冯浩. 基于粘弹性理论的沥青胶浆试验特性研究[D]. 长沙: 长沙理工大学, 2008.FENG Hao. Research on characteristics of asphalt mortar based on viscoelastic theory[D]. Changsha: Changsha University of Science and Technology, 2008. (in Chinese). [9] LI Ping, KONG Chen-guang, ZHANG Zheng-qi. Influence of filler on asphalt mortar's viscosity[C]∥IEEE. 2009International Conference on Measuring Technology and Mechatronics Automation. New York: IEEE, 2009: 778-780. [10] 张争奇, 李平, 王秉纲. 纤维和矿粉对沥青胶浆性能的影响[J]. 长安大学学报: 自然科学版, 2005, 25(5): 15-18. doi: 10.3321/j.issn:1671-8879.2005.05.004ZHANG Zheng-qi, LI Ping, WANG Bing-gang. Effect of fiber and mineral filler on asphalt mortar performance[J]. Journal of Chang'an University: Natural Science Edition, 2005, 25(5): 15-18. (in Chinese). doi: 10.3321/j.issn:1671-8879.2005.05.004 [11] SHUI Heng-fu, CAI Zheng-yi, XU Chun-bao. Recent advances in direct coal liquefaction[J]. Energies, 2010, 3(2): 155-170. [12] LIU Zhen-yu, SHI Shi-dong, LI Yong-wang. Coal liquefaction technologies-development in China and challenges in chemical reaction engineering[J]. Chemical Engineering Science, 2010, 65(1): 12-17. doi: 10.1016/j.ces.2009.05.014 [13] ZHENG Li-zhen, WANG Xiao-hua, ZHANG Tie-shuan, et al. Research progress in utilizations of coal liquefaction residues[C]∥IEEE. 2011International Conference on Materials for Renewable Energy and Environment. New York: IEEE, 2011: 1627-1630. [14] PATEL P. China and South Africa pursue coal liquefaction[J]. MRS Bulletin, 2012, 37(3): 204-205. [15] 金倬伊. 煤直接液化残渣改性沥青的可行性研究[J]. 广州化工, 2014, 42(3): 23-24, 54. https://www.cnki.com.cn/Article/CJFDTOTAL-GZHA201403010.htmJIN Zhuo-yi. Feasibility study of direct coal liquefaction residue modified asphalt[J]. Guangzhou Chemical Industry, 2014, 42(3): 23-24, 54. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GZHA201403010.htm [16] 赵鹏, 孙淑君, 卢正元, 等. 煤直接液化残渣性质及高附加值应用研究进展[J]. 洁净煤技术, 2009, 15(6): 33-35. https://www.cnki.com.cn/Article/CJFDTOTAL-JJMS200906011.htmZHAO Peng, SUN Shu-jun, LU Zheng-yuan, et al. Development of property and high added-value utilization of direct coal liquefaction residue[J]. Clean Coal Technology, 2009, 15(6): 33-35. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-JJMS200906011.htm [17] 朱伟平. 煤直接液化残渣改性沥青的研究[J]. 神华科技, 2009, 7(6): 68-71, 85. https://www.cnki.com.cn/Article/CJFDTOTAL-SBMT200906025.htmZHU Wei-ping. Study on direct coal liquefaction residue as asphalt[J]. Shen Hua Science and Technology, 2009, 7(6): 68-71, 85. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-SBMT200906025.htm [18] JI Jie, ZHAO Yong-shang, XU Shi-fa. Study on properties of the blends with direct coal liquefaction residue and asphalt[C]∥ICAEMAS. 3rd International Conference on Advanced Engineering Materials and Architecture Science. Huhhot: ICAEMAS, 2014: 316-321. [19] ZHAO Yong-shang, JI Jie. Study on the performance of direct coal liquefaction residue modified mixture[C]∥ASCE. Challenges and Advances in Sustainable Transportation Systems. Reston: ASCE, 2014: 352-357. [20] 季节, 石越峰, 索智, 等. 煤直接液化残渣共混改性沥青的性能和微观结构[J]. 北京工业大学学报, 2015, 41(7): 1049-1053. https://www.cnki.com.cn/Article/CJFDTOTAL-BJGD201507016.htmJI Jie, SHI Yue-feng, SUO Zhi, et al. Properties and microstructure of direct coal liquefaction residue blending modified asphalt[J]. Journal of Beijing University of Technology, 2015, 41(7): 1049-1053. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-BJGD201507016.htm [21] 李智慧, 谭忆秋. 应用流变学研究沥青胶浆最佳粉胶比的确定方法[J]. 中外公路, 2014, 34(4): 294-298. https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL201404073.htmLI Zhi-hui, TAN Yi-qiu. Determination method for the best filler-asphalt ratio of asphalt mortar based on rheology[J]. Journal of China and Foreign Highway, 2014, 34(4): 294-298. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL201404073.htm [22] 丁红霞, 程国香, 张建峰. SHRP评价改性沥青的性能研究[J]. 石油沥青, 2012, 26(4): 31-34. https://www.cnki.com.cn/Article/CJFDTOTAL-OILE201204011.htmDING Hong-xia, CHENG Guo-xiang, ZHANG Jian-feng. Performance evaluation of modified asphalt by SHRP[J]. Petroleum Asphalt, 2012, 26(4): 31-34. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-OILE201204011.htm [23] HIRATO T, MURAYAMMA M, SASAKI H. Development of high stability hot mix asphalt concrete with hybrid binder[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1(6): 424-431. -
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