Performance Evaluation of Stabilized Reclaimed Asphalt Pavement as Base Layer in Flexible Pavement

This paper presents the engineering characteristics of reclaimed asphalt pavement (RAP), blended with virgin aggregate for unbound base and subbase layers. The proportions of RAP were 0%, 20%, 60%, 80%, and 100% by total mass of the blend. The experimental laboratory testing included index properties such as gradation, modified Proctor compaction, California Bearing Ratio, and hydraulic conductivity. Repeated load resilient modulus testing was conducted on the blends. The impact of load duration on resilient modulus was also investigated. A strong inverse trend was found between resilient modulus and California Bearing Ratio. An accurate model was proposed for the prediction of the resilient modulus as a function of stress state and reclaimed asphalt pavement percentage with coefficient of determination of 0.94. Finally, multilayer elastic analysis of typical pavement sections with the base layer constructed of virgin aggregate and reclaimed asphalt pavement blends showed good performance.

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

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.b6227.129219 ◽

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

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EXPERIMENTAL STUDY OF PARTIAL REPLACEMENT OF NATURAL AGGREGATES AND BITUMEN WITH RECLAIMED ASPHALT PAVEMENT AND WASTE PLASTIC IN FLEXIBLE PAVEMENT – A REVIEW

International Journal of Recent Trends in Engineering and Research ◽

10.23883/ijrter.2019.5062.nsdzw ◽

2019 ◽

Vol 05 (07) ◽

pp. 21-27

Author(s):

Anand Vilas Misal ◽

Saswati Datta

Keyword(s):

Experimental Study ◽

Asphalt Pavement ◽

Flexible Pavement ◽

Partial Replacement ◽

Reclaimed Asphalt Pavement ◽

Waste Plastic ◽

Reclaimed Asphalt ◽

Natural Aggregates

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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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