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.

scholarly journals Characterization of Classified Indian Reclaimed Asphalt Pavement (RAP): Aggregate Impact Value and Aggregate Abrasion Value of Rap Aggregates

2020 ◽  
Vol 9 (3) ◽  
pp. 3913-3921
Keyword(s):  
Asphalt Pavement ◽  
Flexible Pavement ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt ◽  
The Road ◽  
Different Characteristics ◽  
Aggregate Impact Value ◽  
Pavement Material ◽  
Bituminous Concrete

Reuse of existing deteriorated bituminous pavement material in construction and maintenance of flexible pavement is called recycling of bituminous pavement. Removed and reprocessed deteriorated pavement material which is recycled is termed as Reclaimed asphalt pavement (RAP). In India during construction of flexible pavement different types of bituminous layers are in practice depending upon CBR of sub-grade and traffic count i.e. CVPD of the road stretch. Depending upon types of bituminous layer i.e. PC Seal Coat, Bituminous Macadam(BM), Dense grade bituminous Macadam (DBM), Semi Dense Bituminous Concrete (SDBC) or Bituminous Concrete(BC) Reclaimed Asphalt Pavement can classified in different groups These classified RAP groups materials will have different characteristics i.e. Rap aggregates and Recovered bitumen of different group of RAP will have different characteristics. In this study characterization of RAP limited to Aggregate Impact Value (AIV) and Aggregate Abrasion Value (AAV)of RAP aggregates of RAP classified in different groups. Results of this study will be compared to standard value of AIV and AAV required for bituminous construction to predict that RAP aggregates are suitable or not for use in bituminous mixes.

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.

The Performance Analysis of Semi-Flexible Pavement by the Volume Parameter of Matrix Asphalt Mixture

2010 ◽  
Vol 168-170 ◽  
pp. 351-356 ◽  
Author(s):  
Qing Jun Ding ◽  
Zheng Sun ◽  
Fan Shen ◽  
Shao Long Huang
Keyword(s):  
Pore Structure ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Flexible Pavement ◽  
High Temperature Stability ◽  
Important Target ◽  
Air Void ◽  
Better Than ◽  
Pavement Material

The volume parameter of matrix asphalt mixture is an important target in the design of the semi-flexible pavement. The research used volume-standar to design four kinds of matrix asphalt mixture, fulfilled mechanics performances and performances of semi-flexible pavement material with different aging, compared with common asphalt mixture and researched the effect by air void and pore structure. It proves that the compacted intensity, high-temperature stability and low temperature bend of the semi-flexible pavement material is better than common asphalt pavement material, the performances of matrix asphalt mixture with high air void is better. As for matrix asphalt mixture with same air void but different pore structure, the performances of homogenous grade design is prior to consecutive grade disign.

The Study on Road Performance and Pavement Structure Analysis for the Base Layer Material Stabilized by SRX

2012 ◽  
Vol 594-597 ◽  
pp. 1402-1406 ◽  
Author(s):  
Yue Zhang ◽  
Yun Long Zhao ◽  
Bao Yang Yu
Keyword(s):  
Resilient Modulus ◽  
Asphalt Pavement ◽  
Base Material ◽  
Base Layer ◽  
Rigid Base ◽  
The Road ◽  
Flexible Material ◽  
Calculation Results ◽  
Road Performance ◽  
Pavement Structure

In order to overcome the weakness of semi-rigidity base layer，the road performance of the SRX(Solution Road RomixSoilfix) stabilized base material and the mechanics response of asphalt pavement with the base layer stabilized by SRX have been studied in this paper. The CBR value and resilient modulus of SRX stabilized base material were given by indoor test. Based on the multiple layer elastic theory, both the mechanical responses of asphalt pavement structure with the SRX stabilized base and semi-rigid base were given, and according to the calculation results, the two kinds of pavement structure fatigue life were analyzed. The results have shown that the CBR value of SRX flexible material is greater than that of graded crushed stone; the SRX stable material can be used as pavement base layer, but the fatigue performance of SRX flexible base materials should be paid much attention.

On the road again! An economic and environmental break-even and hotspot analysis of reclaimed asphalt pavement and rejuvenators

2022 ◽  
Vol 177 ◽  
pp. 106014
Author(s):  
Moins Ben ◽  
Hernando David ◽  
Buyle Matthias ◽  
France Cyril ◽  
Wim Van den bergh ◽  
...  
Keyword(s):  
Asphalt Pavement ◽  
Reclaimed Asphalt Pavement ◽  
Hotspot Analysis ◽  
Reclaimed Asphalt ◽  
The Road ◽  
On The Road

Study Enhancing the Rutting of Flexible Pavement by Adding Selected Polymers into Asphalt Mixes

2021 ◽  
Author(s):  
Mohammed Al-Jumaili ◽  
Keyword(s):  
Permanent Deformation ◽  
Asphalt Mixture ◽  
Flexible Pavement ◽  
Asphalt Mixes ◽  
The Road ◽  
Binder Layer ◽  
Heavy Trucks ◽  
Suitable Treatment ◽  
Road Performance ◽  
On The Road

Rutting in flexible pavement is one of the main permanent deformation which appears in most Iraqi roads owing to high temperature and the increase in axial excessive heavy trucks load, these combined conditions cause a major impact on the road performance. The polymers used as additives to improve the properties of asphalt and, that leads to achieve high quality asphalt mixture. This humble research focused on finding the suitable treatment for such issue by using SBS and HDPE. Whereas 5 percent for each polymer was used (2%, 4%, 6%, 8% and 10%) by weight of total mix. A different percentage of polymers were used in order to achieve the best additive percent which was proved to be (8% HDPE, 6% SBS) for wearing (III A) layer and (6% HDPE, 2% SBS) for binder layer. As well as the results showed that using the optimum percent of additives for each layer of asphaltic mixture and test it as one specimen formed from two layers, has decreased the rutting percent by (72%, 65%) for (HDPE, SBS) respectively for each type of additives at (40ºC).

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.

scholarly journals Research and Analysis on the Principle in Plant Cold Recycling for Foamed Bitumen and Mixture Performance

2021 ◽  
Vol 4 (6) ◽  
Author(s):  
Zecheng Ni ◽  
Shijing Chen ◽  
Yihuan Li ◽  
Hongxi Peng ◽  
Jiawen Liang ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
External Factors ◽  
Asphalt Pavements ◽  
Huge Amount ◽  
Construction Waste ◽  
The Road ◽  
Road Performance ◽  
Foamed Bitumen ◽  
Cold Recycling

The early asphalt pavement in our country severely reduced the road performance due to various external factors during the use process. According to incomplete statistics, there are more asphalt pavements that need to be renovated and repaired every year in China, and the amount of construction waste such as asphalt concrete and other construction waste reaches 1,000. About ten thousand tons. If such a huge amount of construction waste is not used, it will inevitably cause great pollution to the environment. If it can be reused, not only will it be environmentally friendly and energy-saving, it will also save more than one billion yuan in costs. In view of the above problems, this article conducts related Research and Analysis on the Principle in Plant Cold Recycling for Foamed Bitumen and Mixture Performance to provide reference for future projects.

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