RCA粗骨料在沥青稳定碎石中掺量确定方法研究
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摘要
为了解决RCA在沥青稳定碎石应用中存在的问题,本文引入振动成型法对不同RCA粗骨料掺量下的ATB-25进行体积参数、力学参数和路用性能的测试,建立了基于力学参数及路用性能的沥青稳定碎石中RCA粗骨料合理掺量范围的计算模型。研究结果表明,RCA粗骨料掺量的增加降低了ATB-25毛体积相对密度,对VV、VMA、VFA无明显影响,同时降低了MS、τ、Ri等力学参数值;RCA不利于ATB-25水稳定性及低温抗裂性,但对高温稳定性有利。RCA粗骨料在沥青稳定碎石中合理掺量范围计算模型RRCAC=[0,min(RRCAC1,RRCAC2)]%能够在保证力学参数及路用性能合格的前提下计算出RCA掺量上限。振动成型法提高了含RCA粗骨料沥青稳定碎石的室内成型标准,对提高RCA利用率及沥青稳定碎石路用性能效果显著。
In order to solve the application problems of recycled concrete aggregate(RCA)in bituminous stabilization aggregate paving mixtures,vibration testing was used in this research,and the volume indexes,mechanical parameters and pavement performance of ATB-25 with different RCA contents were tested.The determining model of reasonable RCA content based on the mechanical parameters and pavement performance was established.The results showed that with the increasing of RCA's content,the bulk volume relative density reduced while VV,VMA,and VFA basically remained unchanged,and MS,τ,Rireduced.RCA was detrimental to the water stability and low temperature crack resistance but advantageous to high temperature stability.[0,min(RRCAC1,RRCAC2)]was the computational model of reasonable RCA content.Vibration testing is more suitable to bituminous stabilization aggregate paving mixtures with RCA which can lead to higher performances and RCA content.
In order to solve the application problems of recycled concrete aggregate(RCA)in bituminous stabilization aggregate paving mixtures,vibration testing was used in this research,and the volume indexes,mechanical parameters and pavement performance of ATB-25 with different RCA contents were tested.The determining model of reasonable RCA content based on the mechanical parameters and pavement performance was established.The results showed that with the increasing of RCA's content,the bulk volume relative density reduced while VV,VMA,and VFA basically remained unchanged,and MS,τ,Rireduced.RCA was detrimental to the water stability and low temperature crack resistance but advantageous to high temperature stability.[0,min(RRCAC1,RRCAC2)]was the computational model of reasonable RCA content.Vibration testing is more suitable to bituminous stabilization aggregate paving mixtures with RCA which can lead to higher performances and RCA content.
引文
1胡魁.建筑垃圾高效分选关键技术及在公路工程中的应用研究[D].西安:长安大学,2017.
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4 Khodair Yasse,Luqman.Self-compacting concrete using recycled asphalt pavement and recycled concrete aggregate[J].Journal of Building Engineering,2017,12:282.
5 Mills-Beale Julian,You Zhanping.The mechanical properties of asphalt mixtures with recycled concrete aggregates[J].Construction and Building Materials,2010,24:230.
6 Tahmoorian Farzaneh,Samali Bijan.Experimental and correlational study on the utilisation of RCA as an alternative coarse aggregate in asphalt mixtures[J].Australian Journal of Civil Engineering,2017,15:80.
7 Jayakody S,Gallage C,Ramanujam J.Effects of reclaimed asphalt materials on geotechnical characteristics of recycled concrete aggregates as a pavement material[J].Road Materials and Pavement Design,DOI:10.1080/14680629.2017.1417151.
8廖湘南.基于再生粗骨料性能的沥青混凝土设计方法与路用性能研究[D].广州:华南理工大学,2016.
9 Pérez I,Pasandín A R.Moisture damage resistance of hot-mix asphalt made with recycled concrete aggregates and crumb rubber[J].Journal of Cleaner Production,2017,165:405.
10 Pasandín A R,Pérez I,Gómez-Meijide B,et al.The effect of hydrated lime on the bond between asphalt and recycled concrete aggregates[J].Petroleum Science and Technology,2015,33:1141.
11 Cho Yoon-Ho,Yun Taeyoung,Kim In Tai,et al.The application of recycled concrete aggregate(RCA)for hot mix asphalt(HMA)base layer aggregate[J].KSCE Journal of Civil Engineering,2011,15:473.
12 Zhang Z Q,Wang K J,Liu H,et al.Key performance properties of asphalt mixtures with recycled concrete aggregate from low strength concrete[J].Construction and Building Materials,2016,126:711.
13 Qasrawi Hisham,Asi Ibrahim.Effect of bitumen grade on hot asphalt mixes properties prepared using recycled coarse concrete aggregate[J].Construction and Building Materials,2016,121:18.
14蒋应军,孔令飞,陈浙江.ATB-30沥青混合料VVCM与马歇尔设计对比[J].公路交通科技,2015,32(6):6.
15王天林,蒋应军.沥青混合料试件振动成型方法[J].武汉理工大学学报(交通科学与工程版),2014,38(3):558.
16蒋应军,赵占林,李明杰.两种方法设计沥青混合料的疲劳特性[J].江苏大学学报(自然科学版),2016,37(4):473.
17中华人民共和国交通部.JTG F40-2004公路沥青路面施工技术规范[S].北京:人民交通出版社,2004.
2索伦,彭鹏,赵燕茹.再生粗集料强化试验研究[J].材料导报,2015,29(专辑25):362.
3王奕仁,王栋民.骨料种类与品质对透水混凝土性能影响的研究进展[J].材料导报:综述篇,2017,31(9):98.
4 Khodair Yasse,Luqman.Self-compacting concrete using recycled asphalt pavement and recycled concrete aggregate[J].Journal of Building Engineering,2017,12:282.
5 Mills-Beale Julian,You Zhanping.The mechanical properties of asphalt mixtures with recycled concrete aggregates[J].Construction and Building Materials,2010,24:230.
6 Tahmoorian Farzaneh,Samali Bijan.Experimental and correlational study on the utilisation of RCA as an alternative coarse aggregate in asphalt mixtures[J].Australian Journal of Civil Engineering,2017,15:80.
7 Jayakody S,Gallage C,Ramanujam J.Effects of reclaimed asphalt materials on geotechnical characteristics of recycled concrete aggregates as a pavement material[J].Road Materials and Pavement Design,DOI:10.1080/14680629.2017.1417151.
8廖湘南.基于再生粗骨料性能的沥青混凝土设计方法与路用性能研究[D].广州:华南理工大学,2016.
9 Pérez I,Pasandín A R.Moisture damage resistance of hot-mix asphalt made with recycled concrete aggregates and crumb rubber[J].Journal of Cleaner Production,2017,165:405.
10 Pasandín A R,Pérez I,Gómez-Meijide B,et al.The effect of hydrated lime on the bond between asphalt and recycled concrete aggregates[J].Petroleum Science and Technology,2015,33:1141.
11 Cho Yoon-Ho,Yun Taeyoung,Kim In Tai,et al.The application of recycled concrete aggregate(RCA)for hot mix asphalt(HMA)base layer aggregate[J].KSCE Journal of Civil Engineering,2011,15:473.
12 Zhang Z Q,Wang K J,Liu H,et al.Key performance properties of asphalt mixtures with recycled concrete aggregate from low strength concrete[J].Construction and Building Materials,2016,126:711.
13 Qasrawi Hisham,Asi Ibrahim.Effect of bitumen grade on hot asphalt mixes properties prepared using recycled coarse concrete aggregate[J].Construction and Building Materials,2016,121:18.
14蒋应军,孔令飞,陈浙江.ATB-30沥青混合料VVCM与马歇尔设计对比[J].公路交通科技,2015,32(6):6.
15王天林,蒋应军.沥青混合料试件振动成型方法[J].武汉理工大学学报(交通科学与工程版),2014,38(3):558.
16蒋应军,赵占林,李明杰.两种方法设计沥青混合料的疲劳特性[J].江苏大学学报(自然科学版),2016,37(4):473.
17中华人民共和国交通部.JTG F40-2004公路沥青路面施工技术规范[S].北京:人民交通出版社,2004.