Analysis of mechanical properties for cement stabilized asphalt pavement milling mixture
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摘要: 结合陕西渭南G108线二级公路大修工程, 设计了6种水泥稳定沥青路面铣刨料配合比。通过室内试验研究了水泥稳定沥青路面铣刨料的击实特性, 成型试件后通过力学试验, 研究了水泥用量、铣刨料组成、温度以及养生龄期对混合料无侧限抗压强度、抗折强度和抗压回弹模量的影响规律。分析结果表明: 水泥稳定沥青路面铣刨料的最大干密度随着面层和基层铣刨料含量的增加而减小, 而最佳含水量随之增大; 水泥稳定沥青路面铣刨料的抗压、抗折强度及其抗压回弹模量均随养生龄期和水泥用量的增加而增大, 但随着试验温度升高而下降; 掺入新碎石有助于提高混合料的强度和模量。在使用合理的情况下, 水泥稳定沥青路面铣刨料的强度可达到3.2MPa, 能够满足除特重交通以外的路面基层要求。Abstract: Six proportions of cement stabilized asphalt pavement milling mixture were designed combining the overhaul project of G108 secondary road in Weinan, Shaanxi.Based on laboratory test, the compaction properties of cement stabilized asphalt pavement milling mixture were studied.Through mechanics test of molding specimens, the influence laws of cement content, milling mixture composition, temperature and curing period on the unconfined compressive strength, rupture strength and compressive resilient modulus of mixture were studied.Analysis result shows that the maximum dry density of cement stabilized asphalt pavement milling mixture declines with the increases of milling mixture contents in surface course and base course, but the optimum moisture content increases.The compressive strength, rupture strength, and compressive resilient modulus of cement stabilized asphalt pavement milling mixture increase with the increases of curing period and cement content, but decreases with the increase of temperature.Incorporating new macadam is helpful to improve the strength and modulus of mixture.In the case of reasonable use, the strength of cement stabilized asphalt pavement millingmixture can reach 3.2 MPa, which can meet the requirement of pavement base except for over-heavy traffic.
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Key words:
- road engineering /
- milling mixture /
- cement stabilization /
- compaction /
- mechanical property
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图 1 5%水泥用量下混合料最大干密度和最佳含水量
Figure 1. Maximum dry density and optimum moisture content of each mixture with 5% cement content
图 2 不同龄期再生料的无侧限抗压强度
Figure 2. Unconfined compressive strengths of recycled mixtures with different curing periods
图 3 不同温度再生料的无侧限抗压强度
Figure 3. Unconfined compressive strengths of recycled mixtures at different temperatures
图 4 不同水泥剂量再生料的无侧限抗压强度
Figure 4. Unconfined compressive strengths of recycled mixtures with different cement contents
图 5 不同龄期再生料的抗折强度
Figure 5. Rupture strengths of recycled mixtures with different curing periods
图 6 不同温度再生料的抗折强度
Figure 6. Rupture strengths of recycled mixtures at different temperatures
图 7 不同水泥剂量再生料的抗折强度
Figure 7. Rupture strengths of recycled mixtures with different cement contents
图 8 不同龄期再生料的回弹模量
Figure 8. Resilient moduli of recycled mixtures with different curing periods
图 9 不同温度再生料的回弹模量
Figure 9. Resilient moduli of recycled mixtures at different temperatures
图 10 不同水泥剂量再生料的回弹模量
Figure 10. Resilient moduli of recycled mixtures with different cement contents
表 5 各混合料的最大干密度和最佳含水量
Table 5. Maximum dry density and optimum moisture content of each mixture
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[1] 贾淑俊. 沥青路面冷再生工艺技术的研究[D]. 天津: 河北工业大学, 2007.JIA Shu-jun. Research on asphalt pavement cold reutilization workmanship technology[D]. Tianjin: Hebei University of Technology, 2007. (in Chinese). [2] 马君毅. 冷再生旧沥青路面材料在基层的应用研究[D]. 西安: 长安大学, 2005.MA Jun-yi. Study on application of cold-mix reclamation of old asphalt pavement materials used for base[D]. Xi'an: Chang'an University, 2005. (in Chinese). [3] 张海, 阎石, 李炜光. 水泥冷再生材料疲劳性能研究[J]. 筑路机械与施工机械化, 2013, 30 (4): 67-69. doi: 10.3969/j.issn.1000-033X.2013.04.026ZHANG Hai, YAN Shi, LI Wei-guang. Research on fatigue properties of cement cold-recycling materials[J]. Road Machinery and Construction Mechanization, 2013, 30 (4): 67-69. (in Chinese). doi: 10.3969/j.issn.1000-033X.2013.04.026 [4] 纪小平, 郑南翔, 杨党旗, 等. 基于复合粘温曲线的热再生沥青混合料拌和温度研究[J]. 中国公路学报, 2010, 23 (5): 16-21. doi: 10.3969/j.issn.1001-7372.2010.05.003JI Xiao-ping, ZHENG Nan-xiang, YANG Dang-qi, et al. Research on mixing temperature of hot-recycled asphalt mixture based on composite curve of viscosity-temperature[J]. China Journal of Highway and Transport, 2010, 23 (5): 16-21. (in Chinese). doi: 10.3969/j.issn.1001-7372.2010.05.003 [5] KARLSSON R, ISACSSON U. Material-related aspects of asphalt recycling—state-of-the-art[J]. Journal of Materials in Civil Engineering, 2006, 18 (1): 81-92. doi: 10.1061/(ASCE)0899-1561(2006)18:1(81) [6] WANG Hai-nian, HUANG Zhi-han, LI Lei, et al. Threedimensional modeling and simulation of asphalt concrete mixtures based on X-ray CT microstructure images[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1 (1): 55-61. doi: 10.1016/S2095-7564(15)30089-1 [7] IWANSKI M, CHOMICZ-KOWALSKA A. Laboratory study on mechanical parameters of foamed bitumen mixtures in the cold recycling technology[J]. Procedia Engineering, 2013, 57: 433-442. doi: 10.1016/j.proeng.2013.04.056 [8] TAHA R. Evaluation of cement kiln dust-stabilized reclaimed asphalt pavement aggregate systems in road bases[J]. Transportation Research Record, 2003 (1819): 11-17. [9] 张西棉. 水泥稳定就地冷再生基层应用技术研究[D]. 西安: 长安大学, 2010.ZHANG Xi-mian. Cement recycling base application technology[D]. Xi'an: Chang'an University, 2010. (in Chinese). [10] 耿九光, 陈忠达, 李龙, 等. 水泥-乳化沥青冷再生混合料配合比设计[J]. 长安大学学报: 自然科学版, 2009, 29 (1): 10-14. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200901004.htmGENG Jiu-guang, CHEN Zhong-da, LI Long, et al. Mixing design of cement-emulsified-asphalt-cold-recycled-mixture (CEACRM)[J]. Journal of Chang'an University: Natural Science Edition, 2009, 29 (1): 10-14. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200901004.htm [11] 张超, 丁纪忠, 郭金胜. 废弃水泥混凝土再生集料在半刚性基层中的应用[J]. 长安大学学报: 自然科学版, 2002, 22 (5): 1-4. https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200205000.htmZHANG Chao, DING Ji-zhong, GUO Jin-sheng. Use of scrap concrete materials in semi-rigid base-course[J]. Journal of Chang'an University: Natural Science Edition, 2002, 22 (5): 1-4. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-XAGL200205000.htm [12] 李强, 马松林, 王鹏飞. 沥青路面冷再生混合料疲劳性能[J]. 交通运输工程学报, 2004, 4 (1): 7-10. http://transport.chd.edu.cn/article/id/200401003LI Qiang, MA Song-lin, WANG Peng-fei. Fatigue properties of cold-recycled asphalt mixture[J]. Journal of Traffic and Transportation Engineering, 2004, 4 (1): 7-10. (in Chinese). http://transport.chd.edu.cn/article/id/200401003 [13] 刘建兰. 水泥稳定铣刨料再生技术[J]. 公路, 2009 (8): 132-134. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200908037.htmLIU Jian-lan. Regeneration technique of cement-stabilized milling planning material[J]. Highway, 2009 (8): 132-134. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200908037.htm [14] 张敏江, 刘峰, 李辉. 冷再生材料路用性能的试验分析[J]. 沈阳建筑大学学报: 自然科学版, 2007, 23 (3): 363-366. https://www.cnki.com.cn/Article/CJFDTOTAL-SYJZ200703003.htmZHANG Min-jiang, LIU Feng, LI Hui. Test and analysis of cool recycled mixture for old asphalt pavement[J]. Journal of Shenyang Jianzhu University: Natural Science, 2007, 23 (3): 363-366. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-SYJZ200703003.htm [15] 郭银涛, 刘清泉, 刘振清. 考虑水泥作用的改性乳化沥青冷再生混合料性能研究[J]. 公路交通科技, 2012, 29 (6): 6-10, 21. https://www.cnki.com.cn/Article/CJFDTOTAL-GLJK201206003.htmGUO Yin-tao, LIU Qing-quan, LIU Zhen-qing. Study on performance of modified emulsified asphalt cold recycled mixtures considering cement effect[J]. Journal of Highway and Transportation Research and Development, 2012, 29 (6): 6-10, 21. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-GLJK201206003.htm [16] 王晓刚, 冯玮. 水泥稳定碎石冷再生技术在路面维修中的应用[J]. 公路工程, 2013, 38 (2): 44-46. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGL201302012.htmWANG Xiao-gang, FENG Wei. Application of cold-regeneration technique of cement stabilized macadam in pavement maintenance[J]. Highway Engineering, 2013, 38 (2): 44-46. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGL201302012.htm [17] 冯德成, 赵银, 陈剑. 水泥稳定RAP材料劈裂应力-应变特性[J]. 哈尔滨工业大学学报, 2013, 45 (4): 74-78. https://www.cnki.com.cn/Article/CJFDTOTAL-HEBX201304013.htmFENG De-cheng, ZHAO Yin, CHEN Jian. Splitting stressstrain properties of cement stabilized reclaimed asphalt pavement[J]. Journal of Harbin Institute of Technology, 2013, 45 (4): 74-78. (in Chinese). https://www.cnki.com.cn/Article/CJFDTOTAL-HEBX201304013.htm [18] 宋世杰. 沥青路面现场冷再生技术在G108线大修中的应用研究[D]. 西安: 长安大学, 2009.SONG Shi-jie. The use of the asphalt pavement in-place cold recycling in the G108 heavy maintenance[D]. Xi'an: Chang'an University, 2009. (in Chinese). [19] MAGGIORE C, AIREY G, MARSAC P. A dissipated energy comparison to evaluate fatigue resistance using 2-point bending[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1 (1): 49-54. [20] ZHOU Hai-ping, HOLIKATTI S, VACURA P. Caltrans use of scrap tires in asphalt rubber products: a comprehensive review[J]. Journal of Traffic and Transportation Engineering: English Edition, 2014, 1 (1): 39-48. -
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