Relaxation characteristics of asphalt concrete pavement with reflective crack under traffic load

Author(s):  
Yazhen Sun ◽  
Minjiang Zhang ◽  
Tianqing Yu
2018 ◽  
Vol 1 (3) ◽  
pp. 559-570
Author(s):  
Cut Khairani ◽  
Sofyan M. Saleh ◽  
Sugiarto Sugiarto

Abstract : Endurance of asphalt concrete pavement on traffic load and temperature depends on the type and composition of aggregates, asphalt and filler used. Many attempts have been made to improve the quality of the mixture, such as using modified asphalt. Modified asphalt made by mixing asphalt pen. 60/70 with addition material. In this research, we used crumb rubber as an aggregate substitute material on AC-BC mixture. This study aims to determine the influence of additional substitution of used crumb rubber. The first step of the research is to find the optimum asphalt content (OAC), then add the crumb rubber as an aggregate substitute material from 0%, 1%, 2%, 3%, 4% and 5% to the weight of the mixture. The results showed that the percentage of crumb rubber influenced Marshall parameters value, especially the value of stability, VIM and VMA at 5.285% asphalt content. The highest stability value was found in the mixture of 2% crumb rubber is 1128.48 Kg. The highest VIM value is in the 5% mixture of the used crumb rubber is 16.94%. The highest VMA value is in the 5% mixture of the used crumb rubber is 27.88% and the highest flow value is in the 5% crumb rubber mixture of 4.97 mm. However, in MQ value increase and decrease that happened very big. No big changes in the density and VFA values for all substitutions of crumb rubber. For the durability value of AC-BC mixture with crumb rubber variation 90% requirement only on crumb rubber 1%.Abstrak: Ketahanan perkerasan beton aspal terhadap beban lalulintas dan temperatur sangat tergantung pada jenis dan komposisi agregat, aspal serta filler yang digunakan. Banyak usaha telah dilakukan untuk meningkatkan kualitas campuran, salah satunya dengan menggunakan aspal modifikasi. Aspal modifikasi dibuat dengan mencampur aspal pen. 60/70 dengan bahan tambah. Pada penelitian ini bahan tambah yang digunakan adalah parutan ban karet bekas sebagai bahan pengganti agregat pada campuran AC-BC. Penelitian ini bertujuan untuk mengetahui pengaruh substitusi tambahan ban karet bekas sebagai bahan pengganti agregat. Tahapan awal penelitian adalah mencari Kadar Aspal Optimum (KAO), kemudian dilakukan penambahan parutan ban karet bekas sebagai bahan pengganti agregat mulai dari 0%, 1%, 2%, 3%, 4% dan 5% terhadap berat campuran. Dari hasil penelitian menunjukkan penambahan persentase parutan ban bekas mempengaruhi nilai parameter Marshall, terutama nilai stabilitas, VIM dan VMA pada kadar aspal 5,285%. Nilai stabilitas tertinggi didapat pada campuran 2% parutan ban bekas yaitu 1128,48 Kg. Nilai VIM tertinggi ada pada campuran 5% parutan ban bekas yaitu 16,94%. Nilai VMA tertinggi ada pada campuran 5% parutan ban bekas yaitu 27,88% dan nilai flow tertinggi ada pada campuran 5% parutan ban bekas yaitu 4,97 mm. Namun pada nilai MQ kenaikan dan penurunan yang terjadi sangat besar. Nilai Density dan VFA tidak terjadi perubahan yang besar untuk semua substitusi variasi parutan ban. Untuk nilai durabilitas campuran AC-BC dengan variasi parutan ban yang memenuhi persyaratan 90% hanya pada pemakaian parutan ban 1%.


2014 ◽  
Vol 638-640 ◽  
pp. 1135-1138 ◽  
Author(s):  
Zheng Bing Liu

Since twentieth Century, the middle of 80's, our country highway enters the building climax. By the end of 2011, our country highway traffic mileage of 85000 kilometers, accounting for about 80% of the asphalt concrete pavement. Along with the age increasing and the mileage of highway's growth, has long suffered from the traffic load and environmental effects of the asphalt pavement will have varying degrees of damage, repair workload of asphalt pavement will be bigger and bigger, more and more complex. In this situation, has the important meaning of preventive maintenance of Expressway Asphalt pavement. This paper introduces the present situation of preventive maintenance of highway at home and abroad, and points out the significance of preventive maintenance on highway and economic development, discusses the measures and preventive maintenance of asphalt pavement.


2019 ◽  
pp. 78-92
Author(s):  
Vladimir Zelenovsky ◽  
◽  
Ivan Kopinets ◽  
Arthur Onishchenko ◽  
◽  
...  

2011 ◽  
Vol 12 (2) ◽  
pp. 101-109 ◽  
Author(s):  
Tamer M. Breakah ◽  
Jason P. Bausano ◽  
R. Christopher Williams ◽  
Stan Vitton

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