Evaluation of Mixture Performance Recycled Asphalt Pavement Materials as Base Layer with or without Rejuvenator into the Asphalt

2020 ◽  
Vol 35 (3) ◽  
pp. 579-597
Author(s):  
Quirin Engelbert Ayeditan Alaye ◽  
XianZhang Ling ◽  
Zejiao Dong ◽  
Ghislain Bambou
Keyword(s):  
Asphalt Pavement ◽  
Base Layer ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Pavement Materials

Laboratory characterisation of recycled asphalt pavement as a base layer

2010 ◽  
Vol 11 (2) ◽  
pp. 123-131 ◽  
Author(s):  
Tahsina Binte Alam ◽  
Magdy Abdelrahman ◽  
Scott A. Schram
Keyword(s):  
Asphalt Pavement ◽  
Base Layer ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt

scholarly journals Investigation of the Effect of Recycled Asphalt Pavement Material on Permeability and Bearing Capacity in the Base Layer

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Ayşegül Güneş Seferoğlu ◽  
Mehmet Tevfik Seferoğlu ◽  
Muhammet Vefa Akpınar
Keyword(s):  
Bearing Capacity ◽  
Asphalt Pavement ◽  
Linear Increase ◽  
Base Layer ◽  
Sieve Analysis ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Suitable Material ◽  
Base Course ◽  
Aggregate Base

The purpose of this research was to investigate the effects of recycled asphalt pavement (RAP) and cement content on the permeability and bearing capacity characteristics of aggregate base courses. Mixtures containing untreated RAP ranging between 0 and 100 percent and 1, 2, and 3% cement-treated RAP were subjected to laboratory tests (bitumen content, sieve analysis, modified proctor, soaked California bearing ratio (CBR), and constant-level permeability tests). The results showed that, as the RAP percentage in the mixture increased, CBR values decreased considerably. Moreover, there is a linear increase in the CBR values with cement treatment. Optimum moisture contents (OMC) and maximum dry densities (MDD) showed a decreasing trend. Increasing the cement percentages in 100% RAP blend increases the OMC and MDD values. The permeability of RAP showed a decrease as the percentage of RAP and cement increased in blends. The study showed that the CBR value of the 20% RAP blend is also obtained in the 100% RAP/3% cement-treated blend. Thus, it has been understood that cement is a suitable material in order to increase the use of RAP. In addition, the increase in the percentage of RAP and cement made the base course more impermeable.

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