Rehabilitation by In-situ Cold Recycling Technique Using Reclaimed Asphalt Pavement Material and Foam Bitumen at Vadodara Halol Road Project (SH 87) – A Case Study

Reclaimed asphalt pavement (RAP) has received wide application in asphalt pavement construction and maintenance and it has shown cost-effectiveness over virgin hot mix asphalt (HMA). HMA with a high content of reclaimed asphalt (RA) (e.g., 40%) is sometimes used in practice, however, it may have significant adverse effects on the life cycle performance and related costs. In particular, challenges may arise as the life cycle performance of RAP is also affected by local climatic conditions. Thus, it is important to investigate whether it is still economic to use RAP under future local climate, with consideration of life cycle performance. A case study was conducted for various road structures on Interstate 95 (I-95) in New Hampshire (NH), USA for the investigation. The case study utilized dynamic modulus testing results for local virgin HMA and HMA with 40% RA (as major material alternatives) to predict life cycle performance of the selected pavement structures, considering downscaled future climates. Then, a life cycle cost analysis (LCCA) was considered to estimate and compare the life cycle cash flow of the investigated road structures. Responsive maintenance (overlay) and effectiveness were also considered in this study. It was found that using 40% RA in HMA can reduce agency costs by up to approximately 18% under the 2020–2040 predicted climate and NH should consider this practice under predicted future climate to reduce agency costs.

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Characterization of Reclaimed Asphalt Pavement (RAP) as a road pavement material (National Road Waru, Sidoarjo)

MATEC Web of Conferences ◽

10.1051/matecconf/201818105001 ◽

2018 ◽

Vol 181 ◽

pp. 05001

Author(s):

Ari Widayanti ◽

A. A. Soemitro Ria ◽

Januarti Jaya Ekaputri ◽

Hitapria Suprayitno

Keyword(s):

Asphalt Pavement ◽

Microstructural Analysis ◽

Aluminum Silicate ◽

Reclaimed Asphalt Pavement ◽

Reclaimed Asphalt ◽

Road Pavement ◽

Sodium Aluminum Silicate ◽

Object Of Study ◽

National Road ◽

Pavement Material

Reclaimed Asphalt Pavement (RAP) is a dredging pavement material using Cold Milling Machine. The application of Reclaimed Asphalt Pavement is increased year by year. Due to the increasing application of RAP year by year which implicates environment condition, especially in damaging natural resources, the research on material used in RAP needs to be conducted, so RAP can be optimally utilized. To achieve optimal performance, data of RAP characteristics reviewed from microstructural analysis is necessary. The objective of this research is to obtain the characteristics of Reclaimed Asphalt Pavement. The method used was literary study based on previous research. Material tests used were XRF, SEM and FTIR. The object of study was RAP material taken from national road Waru Sidoarjo. The major compositions of Reclaimed Asphalt Pavement obtained were Kaolin, Lithium, Tetraborate, Dextrin. SEM graphics showed the morphological and surface texture of RAP. FTIR graphic presented the functional group of Reclaimed Asphalt Pavement showing O-H C-O acid in the peak of graphic. From XRD result, the major compounds of Reclaimed Asphalt Pavement obtained were Calcium, Sodium, Aluminum, Silicate.

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Effect of Mixing Time and Temperature on Cracking Resistance of Bituminous Mixtures Containing Reclaimed Asphalt Pavement Material

Journal of Materials in Civil Engineering ◽

10.1061/(asce)mt.1943-5533.0001831 ◽

2017 ◽

Vol 29 (8) ◽

pp. 04017058 ◽

Cited By ~ 6

Author(s):

Domingo Pérez Madrigal ◽

Andrea Iannone ◽

Adriana H. Martìnez ◽

Filippo Giustozzi

Keyword(s):

Asphalt Pavement ◽

Mixing Time ◽

Reclaimed Asphalt Pavement ◽

Cracking Resistance ◽

Reclaimed Asphalt ◽

Bituminous Mixtures ◽

Pavement Material

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

International Journal of Engineering and Advanced Technology - Regular Issue ◽

10.35940/ijeat.c6443.029320 ◽

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.

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