基于正交灰关联分析的纳米碳粉/橡胶粉复合改性沥青制备工艺试验研究
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摘要
为探讨纳米碳粉/橡胶粉复合改性沥青的性能变化、影响因素及制备工艺,采用物理性能试验确定了改性沥青的单配最佳掺量,运用正交试验法获得了不同掺量、反应时间、反应温度、剪切转速、发育温度和发育时间下纳米复合改性沥青的物理性能指标,进而借助灰关联分析法,计算出各项评价指标所占权重,将多指标转化为单指标,并结合极差和方差分析评价了纳米复合改性沥青最佳制备工艺。结果表明:纳米碳粉及橡胶粉的单配最佳掺量分别为2%和18%,改性效果均较基质沥青有所提高;各因素对沥青物理性能的影响程度依次为:复配比例>反应温度>发育时间>发育温度>反应时间>剪切转速,对比F值,得到复配比例对改性效果影响非常显著,其余因素均为显著影响;在综合评分指标下2%纳米碳粉/18%橡胶粉复合改性沥青物理性能最为优异,其最佳制备工艺为:剪切转速3500 r/min、反应温度190℃、反应时间60 min、发育温度170℃及发育时间60 min。
In order to investigate the performance change,influencing factors and preparation process of nano-carbon powder/rubber powder composite modified asphalt,the best preparation of single-modified asphalt was determined by physical property test,and the physical properties of the nano-composite modified asphalt under different dosages,reaction time,reaction temperature,shearing speed,development temperature and development time were obtained by orthogonal test,and calculate the weight of each evaluation index by means of gray correlation analysis method,and convert multiple indicators into a single,the best preparation process of nano composite modified asphalt was evaluated by the combination of range and variance analysis. The results show that the optimum blending ratio of nano-carbon powder and rubber powder are2% and 18%,and the modification effect is improved compared with matrix asphalt. The influence degree of each factor to physical properties is: compound ratio > reaction temperature > development time > development temperature > reaction time> shearing speed,the compounding ratio has a very significant effect on the modification effect,and other factors are significant effects by compared with F value; the physical performance of 2% nano-carbon powder/18% rubber powder composite modified asphalt is best under the comprehensive scoring index,the optimum preparation process is: shearing speed 3500 r/min,reaction temperature 190 ℃,reaction time 60 min,development temperature 170 ℃ and development time 60 min.
In order to investigate the performance change,influencing factors and preparation process of nano-carbon powder/rubber powder composite modified asphalt,the best preparation of single-modified asphalt was determined by physical property test,and the physical properties of the nano-composite modified asphalt under different dosages,reaction time,reaction temperature,shearing speed,development temperature and development time were obtained by orthogonal test,and calculate the weight of each evaluation index by means of gray correlation analysis method,and convert multiple indicators into a single,the best preparation process of nano composite modified asphalt was evaluated by the combination of range and variance analysis. The results show that the optimum blending ratio of nano-carbon powder and rubber powder are2% and 18%,and the modification effect is improved compared with matrix asphalt. The influence degree of each factor to physical properties is: compound ratio > reaction temperature > development time > development temperature > reaction time> shearing speed,the compounding ratio has a very significant effect on the modification effect,and other factors are significant effects by compared with F value; the physical performance of 2% nano-carbon powder/18% rubber powder composite modified asphalt is best under the comprehensive scoring index,the optimum preparation process is: shearing speed 3500 r/min,reaction temperature 190 ℃,reaction time 60 min,development temperature 170 ℃ and development time 60 min.
引文
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[6]陈渊召,陈爱玖,李超杰,等.纳米氧化锌改性沥青混合料性能分析[J].中国公路学报,2017,30(7):25-32.
[7] Zhou X,Zhang X,Xu S,et al. Evaluation of thermo-mechanical properties of graphene/carbon-nanotubes modified asphalt with molecular simulation[J]. Molecular Simulation,2017,43(4):312-319.
[8] De Melo J V S,Trichês G. Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes[J]. Canadian Journal of Civil Engineering,2016,43(5):472-479.
[9]姚辉,李亮,杨小礼,等.纳米材料改性沥青的微观和力学性能研究[J].建筑材料学报,2011,14(5):712-717.
[10]张晓亮,陈华鑫,张奔,等.不同来源橡胶粉对橡胶沥青性能影响[J].长安大学学报(自然科学版),2018,38(5):1-8.
[11] Zhou Z G,Lei M,Chen J Y. Impact of rubber modifier on the rheological properties of asphalt[J]. Advanced Materials Research,2014,997:465-470.
[12]汪水银,郭朝阳,彭锋.废胎胶粉沥青的改性机理[J].长安大学学报(自然科学版),2010,30(4):34-38.
[13]朱圻.橡胶粉与多聚磷酸复合改性沥青性能研究[J].新型建筑材料,2018,45(7):115-120.
[14]刘锋,王宏.抗车辙剂与橡胶粉复合改性沥青及混合料性能研究[J].公路,2017,62(1):209-214.
[15]任瑞波,耿立涛,徐强,等.废旧橡塑改性沥青及混合料的技术性能研究[J].建筑材料学报,2016,19(6):1092-1096+1110.
[16]颜可珍,陈明,胡玥.废胶粉/APAO复合改性沥青性能[J].长安大学学报(自然科学版),2018,38(2):1-8.
[17]李微,韩森,吴生海,等.复合工艺橡胶沥青混合料的性能[J].江苏大学学报(自然科学版),2017,38(4):491-496.
[18]李波,李鹏,张新雨,等.废旧胶粉的反应与交联作用对橡胶沥青黏度的影响[J].长安大学学报(自然科学版),2017,37(2):26-34.
[19]薛哲,乔云雁,宋莉芳,等.橡胶沥青制备工艺参数及改性机理研究[J].筑路机械与施工机械化,2017,34(2):90-95.
[2] Dasek O,Hyzl P,Coufalik P. Properties and ageing of crumb rubber modified bitumens[J]. Key Engineering Materials,2017,737:535-540.
[3]赵友权,蒯海东,陈芳,等.硅藻土/橡胶粉复合改性沥青粘度影响因素研究[J].公路交通技术,2018,34(1):37-40.
[4] Rooholamini H,Imaninasab R,Vamegh M. Experimental analysis of the influence of SBS/nanoclay addition on asphalt fatigue and thermal performance[J]. International Journal of Pavement Engineering,2019,20(6):628-637.
[5]赵宝俊,赵士峰,张洪亮,等.纳米CaCO3/SBR复合改性沥青的性能与机理[J].长安大学学报(自然科学版),2017,37(5):15-22.
[6]陈渊召,陈爱玖,李超杰,等.纳米氧化锌改性沥青混合料性能分析[J].中国公路学报,2017,30(7):25-32.
[7] Zhou X,Zhang X,Xu S,et al. Evaluation of thermo-mechanical properties of graphene/carbon-nanotubes modified asphalt with molecular simulation[J]. Molecular Simulation,2017,43(4):312-319.
[8] De Melo J V S,Trichês G. Evaluation of rheological behavior and performance to permanent deformation of nanomodified asphalt mixtures with carbon nanotubes[J]. Canadian Journal of Civil Engineering,2016,43(5):472-479.
[9]姚辉,李亮,杨小礼,等.纳米材料改性沥青的微观和力学性能研究[J].建筑材料学报,2011,14(5):712-717.
[10]张晓亮,陈华鑫,张奔,等.不同来源橡胶粉对橡胶沥青性能影响[J].长安大学学报(自然科学版),2018,38(5):1-8.
[11] Zhou Z G,Lei M,Chen J Y. Impact of rubber modifier on the rheological properties of asphalt[J]. Advanced Materials Research,2014,997:465-470.
[12]汪水银,郭朝阳,彭锋.废胎胶粉沥青的改性机理[J].长安大学学报(自然科学版),2010,30(4):34-38.
[13]朱圻.橡胶粉与多聚磷酸复合改性沥青性能研究[J].新型建筑材料,2018,45(7):115-120.
[14]刘锋,王宏.抗车辙剂与橡胶粉复合改性沥青及混合料性能研究[J].公路,2017,62(1):209-214.
[15]任瑞波,耿立涛,徐强,等.废旧橡塑改性沥青及混合料的技术性能研究[J].建筑材料学报,2016,19(6):1092-1096+1110.
[16]颜可珍,陈明,胡玥.废胶粉/APAO复合改性沥青性能[J].长安大学学报(自然科学版),2018,38(2):1-8.
[17]李微,韩森,吴生海,等.复合工艺橡胶沥青混合料的性能[J].江苏大学学报(自然科学版),2017,38(4):491-496.
[18]李波,李鹏,张新雨,等.废旧胶粉的反应与交联作用对橡胶沥青黏度的影响[J].长安大学学报(自然科学版),2017,37(2):26-34.
[19]薛哲,乔云雁,宋莉芳,等.橡胶沥青制备工艺参数及改性机理研究[J].筑路机械与施工机械化,2017,34(2):90-95.
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