Potential of recycled concrete aggregate pretreated with waste cooking oil residue for hot mix asphalt

2019 ◽  
Vol 221 ◽  
pp. 469-479 ◽  
Author(s):  
Jianmin Ma ◽  
Daquan Sun ◽  
Qi Pang ◽  
Guoqiang Sun ◽  
Mingjun Hu ◽  
...  
Keyword(s):  
Hot Mix Asphalt ◽  
Waste Cooking Oil ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Cooking Oil ◽  
Oil Residue

scholarly journals Performance Evaluation of Stone Mastic Asphalt and Hot Mix Asphalt Mixtures Containing Recycled Concrete Aggregate

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Mohammad Saeed Pourtahmasb ◽  
Mohamed Rehan Karim
Keyword(s):  
Hot Mix Asphalt ◽  
Asphalt Mixtures ◽  
Recycled Concrete ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate ◽  
Concrete Aggregates ◽  
Recycled Concrete Aggregates ◽  
Mastic Asphalt ◽  
Stone Mastic Asphalt ◽  
Economic Considerations

Environmental and economic considerations have encouraged civil engineers to find ways to reuse recycled materials in new constructions. The current paper presents an experimental research on the possibility of utilizing recycled concrete aggregates (RCA) in stone mastic asphalt (SMA) and hot mix asphalt (HMA) mixtures. Three categories of RCA in various percentages were mixed with virgin granite aggregates to produce SMA and HMA specimens. The obtained results indicated that, regardless of the RCA particular sizes, the use of RCA to replace virgin aggregates increased the needed binder content in the asphalt mixtures. Moreover, it was found that even though the volumetric and mechanical properties of the asphalt mixtures are highly affected by the sizes and percentages of the RCA but, based on the demands of the project and traffic volume, utilizing specific amounts of RCA in both types of mixtures could easily satisfy the standard requirements.

Behavior of a hot mix asphalt made with recycled concrete aggregate and crumb rubber

2019 ◽  
Vol 46 (6) ◽  
pp. 544-551 ◽  
Author(s):  
Marcio Muniz de Farias ◽  
Ferney Quiñonez Sinisterra ◽  
Hugo Alexander Rondón Quintana
Keyword(s):  
Hot Mix Asphalt ◽  
Resilient Modulus ◽  
Permanent Deformation ◽  
Moisture Damage ◽  
Crumb Rubber ◽  
Recycled Concrete ◽  
Asphalt Binders ◽  
Experimental Program ◽  
Concrete Aggregate ◽  
Recycled Concrete Aggregate

An experimental program was devised to evaluate the effect on the resistance of a hot mix asphalt, due to the total replacement of a natural aggregate (limestone — LS) by a recycled concrete aggregate (RCA). Two asphalt binders were used: conventional AC 50-70 (penetration grade) and AC 50-70 modified with crumb rubber (CRM). The mechanical properties investigated were the stability and flow ratio (Marshall test), indirect tensile strength, resistance to abrasion (Cantabro test), resilient modulus, resistance to permanent deformation, to fatigue and to moisture damage (modified Lottman test). When the LS is completely replaced by RCA, the resistance under monotonic loading, moisture damage and permanent deformation improved, the mass loss in the Cantabro test and the resilient modulus shows appropriate values, however, the fatigue resistance decreases. Besides, mixtures with RCA using CRM binder showed lower fatigue life under stress controlled tests, but much better rutting resistance.

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