scholarly journals Use of Reclaimed Asphalt Pavement and Bagasse Ash in Bituminous Flexible Pavement

2019 ◽  
Vol 9 (2) ◽  
pp. 3758-3762
Keyword(s):  
Coarse Aggregate ◽  
Asphalt Pavement ◽  
Flexible Pavement ◽  
Waste Material ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt

An attempt has been made to utilize the waste material such as reclaimed asphalt pavement and bagasse ash by replacing coarse aggregate sieve by sieve and cement while preparing the bituminous mix sample. The usage of RAP was done at different proportions of 15%, 30% and 45% by the weight of coarse aggregate and bagasse ash was used at different proportions of 5%, 7.5% and 10%. Various tests on bitumen, aggregates and obtained bituminous samples were conducted for final results. Therefore, from the results obtained, it can be concluded that all the results of replacement mixes were found to be within the limits of MORTH 5th revision requirement and they have shown the satisfactory results also. The usage of RAP and Bagasse ash can be done effectively

scholarly journals Experimental study on use of reclaimed asphalt pavement as aggregate substitution for flexible pavement

2018 ◽  
Vol 229 ◽  
pp. 03019
Author(s):  
Elsa Eka Putri ◽  
Purnawan ◽  
M. Agung Triandila ◽  
Agung Pratama ◽  
Rindi
Keyword(s):  
Asphalt Concrete ◽  
Coarse Aggregate ◽  
Asphalt Pavement ◽  
Flexible Pavement ◽  
Rolled Sheet ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt ◽  
Public Work Department ◽  
Marshall Stability ◽  
Hot Rolled

This study is to assess the suitability of Reclaimed Asphalt Pavement (RAP) as a coarse aggregate substitution for flexible pavement mixture. The RAP in this investigation was taken from roads in Padang, Indonesia. There were three types of flexible pavement chosen to be tested for RAP substitution, i.e. Asphalt Concrete-Wearing Course (AC-WC), Asphalt Concrete-Binder Course (AC-BC), and Hot Rolled Sheet-Wearing Course (HRS-WC). Laboratory studies have been carried out on flexible pavement mixes with RAP material and their performance has been compared with flexible pavement without RAP substitution. Marshall tests were carried out in laboratory as per 2010 specification 6th division from Indonesia Public Work Department standard. The effects of RAP on physical and rheological properties of the final bituminous blend were investigated. The research aims to find out the effect of RAP as coarse aggregate substitution to the flexible pavement characteristics, i.e. Stability, Flow, Marshall Quotient (MQ), Void in Mix (VIM) and Void in Mineral Aggregate (VMA). The percentage of RAP substitution is 35%, 55%, and 60%. From the results of the tests in the laboratory, it was concluded that the AC-WC pavement was more appropriate due to, it has achieved the highest Marshall stability, with VIM, VMA, and VFB were in the standard.

Laboratory Investigation of Mixing Hot-Mix Asphalt with Reclaimed Asphalt Pavement

2005 ◽  
Vol 1929 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Baoshan Huang ◽  
Guoqiang Li ◽  
Dragan Vukosavljevic ◽  
Xiang Shu ◽  
Brian K. Egan
Keyword(s):  
Layered Structure ◽  
Hot Mix Asphalt ◽  
Coarse Aggregate ◽  
Asphalt Pavement ◽  
Asphalt Mixture ◽  
Reclaimed Asphalt Pavement ◽  
Controlled Experiments ◽  
Reclaimed Asphalt ◽  
Aged Asphalt ◽  
Blending Process

This paper presents a laboratory study in which the blending process of reclaimed asphalt pavement (RAP) with virgin mixture was analyzed through controlled experiments. One type of screened RAP was blended with virgin (new) coarse aggregate at different percentages. A blended mixture containing 20% of screened RAP was subjected to staged extraction and recovery. The result from this experiment indicated that only a small portion of aged asphalt in RAP actually participated in the remixing process; other portions formed a stiff coating around RAP aggregates, and RAP functionally acted as “composite black rock.” The resulting composite layered structure was desirable to improve the performance of the hot-mix asphalt mixture.

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.

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