The Durability Analysis of Secondary Recycled Asphalt Mixture

2012 ◽  
Vol 557-559 ◽  
pp. 1497-1500
Author(s):  
Yu Long Liu ◽  
Ning Zhao ◽  
Jin Zhao
Keyword(s):  
Performance Index ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Reclaimed Asphalt ◽  
The Road ◽  
Durability Analysis ◽  
Road Performance ◽  
The Right

In order to solve the waste which is generated from the recycled asphalt pavement overhaul again, this paper puts forward the idea of secondary reclaimed asphalt mixture. Through analysis the performance index of secondary reclaimed asphalt mixture and with comparison the road performance of the asphalt mixture after different recycled times,we found that, as long as mixed with the right amount of regenerative agent,the road performance index of secondary recycled asphalt mixture can be recovered to the use standard. However, with the increasing of the asphalt aged times, the declining rate of road performances of reclaimed asphalt mixture are increasing.

scholarly journals KARAKTERISTIK CAMPURAN AC-WC MENGGUNAKAN MATERIAL RECLAIMED ASPHALT PAVEMENT DENGAN TAMBAHAN ASPAL PEN. 60/70 YANG DISUBSTITUSI STYROFOAM

2019 ◽  
Vol 2 (2) ◽  
pp. 149-157
Author(s):  
Hendra Arianto ◽  
Sofyan M. Saleh ◽  
Renni Anggraini
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Reclaimed Asphalt Pavement ◽  
Additional Material ◽  
Reclaimed Asphalt ◽  
The Road ◽  
Concrete Type ◽  
Technical Specifications ◽  
Parameter Values

Reuse of reclaimed asphalt pavement material (RAP) is an alternative which applicated for potential enough on the roughness of the road. RAP material can be reused by adding the asphalt and the new aggregate according of the mixture composition so that it is expected will be obtained the quality as planned. One of the efforts made in improving the quality of asphalt mixture RAP material is using a modified asphalt with additional material, such as styrofoam. The use of styrofoam into the asphalt is expected to improve the technical properties of a mixture. The purpose of this research is to know the comparative characteristics of hot mix asphalt (asphalt concrete) type AC-WC that uses RAP material with additional asphalt pen. 60/70 and asphalt pen. 60/70 substitution in the styrofoam by 8%, 10% and 12% against the weight of asphalt based on levels of asphalt left on the material. The initial stages of this study is to conduct an examination of the physical properties of RAP material, then manufacturing a specimen with variations of the addition of asphalt and aggregate new levels based on the job mix diesign (JMD) Bina Marga Aceh (2013). Based on research results, parameter values marshall on all types of asphalt mixture with new aggregate as well as RAP materials and the use of 100% asphalt pen. 60/70 additional or different types of asphalt on OAC has fulfilled the technical specifications defined by the Bina Marga (2014). Best stability values obtained on asphalt mixture using RAP material with additional asphalt pen. 60/70 with 12% styrofoam substitution on OAC JMD Bina Marga Aceh, that amounted to 3,308.72 kg, the lowest value stability retrieved on asphalt mixture using a new aggregate based on the results of Department of Bina Marga Aceh on OAC i.e. of 983.94 kg.

Research on the Road Performance of the AC-25 Asphalt Mixtures

2012 ◽  
Vol 204-208 ◽  
pp. 1593-1598
Author(s):  
Hong Mei Li ◽  
Wen Fang Liu
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Central Layer ◽  
The Road ◽  
Road Performance ◽  
On The Road

In this paper, firstly, based on asphalt pavement central layer, the comparison with the foreign related gradation of asphalt mixtures, one typical kinds of gradations are decided; Secondly, the asphalt aggregate ratio is predicted based on professor Lin’s Theory , and five asphalt aggregate ratio are selected. Finally, the road performance of asphalt mixture is experimented, and the road performance of five asphalt aggregate ratio is analyzed. As a result, we can predict the range of the optimum asphalt aggregate ratio based on the road performance.

scholarly journals Study on the Road Performance of Foamed Warm-Mixed Reclaimed Semi-Flexible Asphalt Pavement Material

Materials ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5379
Author(s):  
Jiawen Xie ◽  
Wenke Huang ◽  
Bei Hu ◽  
Zhicheng Xiao ◽  
Hafiz Muhammad Zahid Hassan ◽  
...  
Keyword(s):  
Asphalt Pavement ◽  
Flexible Pavement ◽  
Fatigue Performance ◽  
High Temperature Stability ◽  
Reclaimed Asphalt ◽  
The Road ◽  
Flexible Material ◽  
Road Performance ◽  
On The Road ◽  
Pavement Material

Warm-mixed reclaimed asphalt pavement (RAP) technology has been widely studied worldwide as a recycled environmental method to reuse waste materials. However, the aggregate skeleton structure of the warm-mixed reclaimed asphalt mixture is not stable because of the existence of the recycled materials. Warm-mixed recycled semi-flexible pavement material can solve the defects of the above materials. In this study, five different types of open-graded asphalt mixtures containing different contents of RAP were designed, and relevant laboratory tests were conducted to assess the road performance of the warm-mixed recycled semi-flexible pavement material. The test results indicated that the road performance of warm-mixed reclaimed semi-flexible pavement materials has good resistance to rut deformation ability. Furthermore, the materials also had good water stability and fatigue performance. The grey correlation analysis shows that the asphalt binder content has the most significant correlation with the high-temperature stability, and the correlation between RAP content and the fatigue performance was the greatest. Furthermore, the curing age has the most remarkable with the low-temperature crack resistance of the warm-mixed reclaimed semi-flexible material.

Research and Application of Warm Recycled Asphalt Mixture

2012 ◽  
Vol 446-449 ◽  
pp. 2412-2417
Author(s):  
Li Ying Yang ◽  
Yi Qiu Tan ◽  
Hao Liu ◽  
En Guang Li
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Laboratory Research ◽  
Reclaimed Asphalt Pavement ◽  
Recycled Asphalt ◽  
Environment Friendly ◽  
Reclaimed Asphalt ◽  
The World ◽  
Effective Use ◽  
Near Future

Reclaimed asphalt pavement (RAP) develops rapidly throughout the world. Hot recycling is one way to make effective use of the waste, but the percentage of RAP in hot recycling is no more than 30%. By way of warm asphalt technology, the percentage of RAP can increase greatly. In this paper, warm recycling is researched. The RAP and the virgin materials including aggregates and asphalt are tested and analyzed. Then, two warm recycling mixtures with different amount of RAP are designed and their properties are investigated. As a comparison, the performances of hot recycling are also tested. At last, the performances of warm recycling and hot recycling are compared and discussed. After the laboratory research, the warm recycling made its debut in Beijing and it exhibit very well, which testifies that warm recycling owns good properties. Warm recycling can make use of pavement waste, and it can decrease the emission and energy consumption. Warm mix is environment-friendly and it is promising in the near future.

Experimental Research of Reclamation Performance of Recycled Asphalt Pavement Material at Weihai Area

2012 ◽  
Vol 204-208 ◽  
pp. 3712-3715
Author(s):  
Ben Hui Gong ◽  
Hong Jie Ji ◽  
Peng Jie Wang
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Agent Technology ◽  
High Temperature Stability ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Moisture Susceptibility ◽  
Stability Performance ◽  
Pavement Material

Based on the recycled asphalt pavement material rooted out during road net reconstruction, this paper uses modified rejuvenating agent technology to study the reclamation performance of recycled asphalt pavement material, the mixture is AC-16 designed with new and old asphalt mixture. The results show that modified rejuvenating agent technology can improve the high temperature stability performance, the low temperature crack resistance performance and the moisture susceptibility performance of recycled asphalt pavement material effectively.

scholarly journals Laboratory comparative assessment of warm and hot mixes Asphalt containing reclaimed Asphalt pavement

2020 ◽  
Vol 8 (2) ◽  
pp. 15-26
Author(s):  
Hasan H Joni ◽  
Aqeel Y M Alkhafaji
Keyword(s):  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Asphalt Mixtures ◽  
Reclaimed Asphalt Pavement ◽  
Moisture Resistance ◽  
Recycled Asphalt ◽  
Reclaimed Asphalt ◽  
Marshall Stability ◽  
The Impact

Warm mix Asphalt (WMA) could be mixed and used in paving at low temperatures to minimize the consumption of energy and the emissions of greenhouse gas. Recycled Asphalt pavement (RAP) could save Asphaltic cement and aggregate, which could achieve the better effects of recycling. However, both of the two WMA and RAP technologies have some deficiencies. Warm mix Asphalt and Reclaimed Asphalt pavement (WMA-RAP) technique may solve these issues and deficiencies when they are utilized together. This study investigated the implementations of WMA-RAP and its impacts on the performance of the Asphalt mixture. Under the framework of this study, four percentages of RAP (0%, 20%, 30%, and 40%) were added to the hot mix Asphalt (HMA) and WMA containing 4% Sasobit to study the impact of increasing RAP content on Marshall stability and moisture resistance of Asphalt mixtures. In summary, the Marshall stability of HMA and WMA mixtures is higher than the control mixtures. A small decrease in moisture resistance of both (HMA and WMA) containing RAP comparing to control mixtures Asphalt was observed, as shown by reduced the tensile strength ratios (TSR), but it is still much higher than the minimum of 80%.

scholarly journals Design method of the mix ratio of hot mix plant recycled asphalt mixture containing high mixture content

2021 ◽  
Vol 261 ◽  
pp. 02064
Author(s):  
Yunwu He ◽  
Tao Liu ◽  
Tao Wang ◽  
Xiayi Liang ◽  
Hanxin Wei ◽  
...  
Keyword(s):  
Design Method ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Water Stability ◽  
High Temperature Stability ◽  
Recycled Asphalt ◽  
The Road ◽  
Technical Requirements ◽  
Road Performance ◽  
Temperature Crack

This paper mainly used the Superpave and the Marshall design methods to design the mix ratio of the hot mix plant recycled asphalt mixture. The road performance of AC-20, SUP-20 with 30% RAP content and AC-20 with 50% RAP content was studied to evaluate the water stability and high temperature stability and low temperature crack resistance of the recycled asphalt mixture. Research shows that the road performance of AC-20 mixed with 50% RAP content meets the technical requirements of the same type of asphalt mixture. It is recommended to use the Marshall design method for hot mix plant recycled asphalt mixture design.

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