布敦岩沥青(BRA)改性沥青的制备及耐老化性能研究
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摘要
针对传统沥青改性剂价格昂贵、与基质沥青配伍性差及对沥青耐老化性能改善有限等缺点,采用布敦岩沥青(BRA)对基质沥青进行改性,通过正交试验和极差分析确定了BRA改性沥青最佳制备参数为剪切时间55 min、剪切温度175℃、剪切速率5 000 r/min;在此基础上,对不同梯度掺量下的BRA改性沥青进行热氧及光氧老化处理,并对老化后的BRA改性沥青的针入度、软化点、延度、黏度进行测定,发现随着BRA掺量的增加,改性沥青物理性能及耐老化性能有显著增长并逐步提高;综合动态剪切流变试验、弯曲梁流变试验、四组分分析试验及红外光谱试验,对比相同及不同掺量下BRA改性效果,结果表明:BRA改性沥青的高温性能、低温性能、胶体稳定性及耐老化性能较基质沥青均有明显的提高,BRA作为改性剂能够对包括耐老化性能在内的多种路用性能产生显著的改善作用。
In view of the disadvantages of traditional asphalt modifiers such as high price, poor compatibility with matrix asphalt, and limited improvement of asphalt aging resistance, Buton Rock asphalt(BRA)was used to modify the road performance such as aging resistance of base asphalt. The optimum parameters of BRA modified asphalt were measured by orthogonal test and range analysis. The shearing time was 55 min, the shear temperature was 175 ℃, and the shear rate was 5 000 r/min. On this basis, the BRA modified asphalts with different gradients were subjected to thermal oxygen and photo-oxygen aging treatments. The penetration, softening point, ductility, and viscosity of this aged BRA modified asphalt were measured. With the increasing of BRA dosage, the physical properties and aging resistance of modified asphalt increased significantly and gradually. Finally, the dynamic shear rheological test, bending beam rheological test, four-component analysis test and infrared spectrum test were used to compare the modification effects of BRA under the same and different dosages. The results show that the high temperature performance, low temperature performance,colloidal stability and aging resistance are significantly improved compared with the matrix asphalt. BRA as a modifier can significantly improve a variety of road performance including aging resistance.
In view of the disadvantages of traditional asphalt modifiers such as high price, poor compatibility with matrix asphalt, and limited improvement of asphalt aging resistance, Buton Rock asphalt(BRA)was used to modify the road performance such as aging resistance of base asphalt. The optimum parameters of BRA modified asphalt were measured by orthogonal test and range analysis. The shearing time was 55 min, the shear temperature was 175 ℃, and the shear rate was 5 000 r/min. On this basis, the BRA modified asphalts with different gradients were subjected to thermal oxygen and photo-oxygen aging treatments. The penetration, softening point, ductility, and viscosity of this aged BRA modified asphalt were measured. With the increasing of BRA dosage, the physical properties and aging resistance of modified asphalt increased significantly and gradually. Finally, the dynamic shear rheological test, bending beam rheological test, four-component analysis test and infrared spectrum test were used to compare the modification effects of BRA under the same and different dosages. The results show that the high temperature performance, low temperature performance,colloidal stability and aging resistance are significantly improved compared with the matrix asphalt. BRA as a modifier can significantly improve a variety of road performance including aging resistance.
引文
[1]李宁利,赵新坡,孙吉书,等.橡胶沥青老化机理研究[J].公路交通科技,2015, 32(7):18-22, 27.
[2] MA Feng, FU Zhen, WANG Li-long. Asphalt-aggregate adhesion work of natural asphalt modified asphalt[J]. International Journal of Pavement Research and Technology, 2014, 7(6):456-460.
[3] KaramiMuhammad, NikrazHamid, SebayangSurya, et al. Laboratory experiment on resilient modulus of BRA modified asphalt mixtures[J]. International Journal of Pavement Research and Technology, 2018, 11(1):38-46.
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[5]张铁志,赵鹏.布敦岩沥青作为改性剂的SMA混合料试验研究[J].公路,2016,(7):240-243.
[6]王明,林发金,刘黎萍.布敦岩沥青灰分胶浆动态流变性能和微细观特性[J].同济大学学报(自然科学版),2016, 44(4):567-571.
[7]刘黎萍,秦钜泽,洪奕尚.制作工艺对布敦岩沥青混合料高温性能的影响[J].武汉理工大学学报(交通科学与工程版),2018,(1):44-47.
[8] Mehmet Yilmaz, Muhammed ErtugrulCeloglu. Effects of SBS and different natural asphalts on the properties of bituminous binders and mixtures[J]. Construction and Building Materials, 2013(44):533-540.
[9]段辉林.掺加天然沥青的微表处混合料技术性能研究[J].公路工程,2015, 2(40):25-29.
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[11] Al-Mansob, RamezA. Rheological characteristics ofunaged and aged epoxidised natural rubber modified asphalt[J]. Construction and Building Materials,2016, 102(1):190-199.
[12]刘黎萍,秦钜泽,洪奕尚.布敦岩沥青混合料拌和工艺优化研究[J].公路,2018,(2):52-57.
[13]林晓光,金年生,林立,等.天然岩沥青对沥青路用性能的影响研究[J].公路交通技术,2015,31(2):45-48.
[14]梁平.含天然岩沥青的改性沥青混合料路用性能研究[D].南宁:广西大学,2013.
[15] Lu Qingqing. Study on Mixing Technology of Buton Rock Asphalt Modified HMA[J]. PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON ENGINEERING MANAGEMENT, 2016,(30):75-79.
[16] Li Jing, GuoXiaoxuan, Jiang Yuzhao, et al. A Micro-Analysis of Buton Rock Asphalt[J]. Journalofcom putationalandtheoreticalnanoscience, 2015, 12(9):2751-2756.
[17]袁景翔,杜连杰.纤维与天然沥青复合添加剂组成优化及其混合料性能评价[J].公路工程,2017, 42(1):267-275.
[18] Muhammad Karami, Hamid Nikraz. Using Advanced Materials of Granular BRA Modifier Binder to Improve the Flexural Fatigue Performance of Asphalt Mixtures[J]. Procedia Engineering, 2015,(125):452-460.
[19] Shutang Liu, Weidong Cao, Xiaojun Li, et al. Principle analysis of mix design and performance evaluation on Superpave mixture modified with Buton rock asphalt[J]. Construction and Building Materials, 2018,(176):549-555.
[20]刘捷,姚晓光.天然沥青改性沥青性能研究[J].公路交通科技(应用技术版),2016,(7):38-41.
[21]栾媛媛.天然沥青改性沥青路用性能研究[D].西安:长安大学,2013.
[22] NyomanSuaryana. Performance evaluation of stone matrix asphalt using indonesian natural rock asphalt as stabilizer[J]. International Journal of Pavement Research and Technology, 2016, 5(9):387-392.
[23]韩吉伟,崔亚楠,李震.改性沥青微观结构及低温性能的研究[J].功能材料,2017,48(2):2140-2143.
[2] MA Feng, FU Zhen, WANG Li-long. Asphalt-aggregate adhesion work of natural asphalt modified asphalt[J]. International Journal of Pavement Research and Technology, 2014, 7(6):456-460.
[3] KaramiMuhammad, NikrazHamid, SebayangSurya, et al. Laboratory experiment on resilient modulus of BRA modified asphalt mixtures[J]. International Journal of Pavement Research and Technology, 2018, 11(1):38-46.
[4] ShiJinjin, WuYingbiao, LiuJinyan, et al. A Modification Mechanism Study of Buton Natural Rock Asphalt in a Matrix Asphalt and Asphalt Mixture[J]. Innovative and Sustainable Solutions in Asphalt Pavements,2016,(262):155-162.
[5]张铁志,赵鹏.布敦岩沥青作为改性剂的SMA混合料试验研究[J].公路,2016,(7):240-243.
[6]王明,林发金,刘黎萍.布敦岩沥青灰分胶浆动态流变性能和微细观特性[J].同济大学学报(自然科学版),2016, 44(4):567-571.
[7]刘黎萍,秦钜泽,洪奕尚.制作工艺对布敦岩沥青混合料高温性能的影响[J].武汉理工大学学报(交通科学与工程版),2018,(1):44-47.
[8] Mehmet Yilmaz, Muhammed ErtugrulCeloglu. Effects of SBS and different natural asphalts on the properties of bituminous binders and mixtures[J]. Construction and Building Materials, 2013(44):533-540.
[9]段辉林.掺加天然沥青的微表处混合料技术性能研究[J].公路工程,2015, 2(40):25-29.
[10]汪托,郝培文,常睿.硅藻土/岩沥青复合改性沥青路用性能研究[J].中外公路,2018, 38(1):296-301.
[11] Al-Mansob, RamezA. Rheological characteristics ofunaged and aged epoxidised natural rubber modified asphalt[J]. Construction and Building Materials,2016, 102(1):190-199.
[12]刘黎萍,秦钜泽,洪奕尚.布敦岩沥青混合料拌和工艺优化研究[J].公路,2018,(2):52-57.
[13]林晓光,金年生,林立,等.天然岩沥青对沥青路用性能的影响研究[J].公路交通技术,2015,31(2):45-48.
[14]梁平.含天然岩沥青的改性沥青混合料路用性能研究[D].南宁:广西大学,2013.
[15] Lu Qingqing. Study on Mixing Technology of Buton Rock Asphalt Modified HMA[J]. PROCEEDINGS OF THE 2016 INTERNATIONAL CONFERENCE ON ENGINEERING MANAGEMENT, 2016,(30):75-79.
[16] Li Jing, GuoXiaoxuan, Jiang Yuzhao, et al. A Micro-Analysis of Buton Rock Asphalt[J]. Journalofcom putationalandtheoreticalnanoscience, 2015, 12(9):2751-2756.
[17]袁景翔,杜连杰.纤维与天然沥青复合添加剂组成优化及其混合料性能评价[J].公路工程,2017, 42(1):267-275.
[18] Muhammad Karami, Hamid Nikraz. Using Advanced Materials of Granular BRA Modifier Binder to Improve the Flexural Fatigue Performance of Asphalt Mixtures[J]. Procedia Engineering, 2015,(125):452-460.
[19] Shutang Liu, Weidong Cao, Xiaojun Li, et al. Principle analysis of mix design and performance evaluation on Superpave mixture modified with Buton rock asphalt[J]. Construction and Building Materials, 2018,(176):549-555.
[20]刘捷,姚晓光.天然沥青改性沥青性能研究[J].公路交通科技(应用技术版),2016,(7):38-41.
[21]栾媛媛.天然沥青改性沥青路用性能研究[D].西安:长安大学,2013.
[22] NyomanSuaryana. Performance evaluation of stone matrix asphalt using indonesian natural rock asphalt as stabilizer[J]. International Journal of Pavement Research and Technology, 2016, 5(9):387-392.
[23]韩吉伟,崔亚楠,李震.改性沥青微观结构及低温性能的研究[J].功能材料,2017,48(2):2140-2143.