Evaluation of performance properties of 50% recycled asphalt mixtures using three types of rejuvenators

Ziari, Hassan; Moniri, Ali; Bahri, Parastoo; Saghafi, Yasha

doi:10.1080/10916466.2018.1550505

Cited by 31 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was reported that incorporating RAP materials into asphalt mixtures could reduce the consumption of binder and aggregate and improve the dynamic modulus and rutting resistance [ 7 , 8 , 9 ]. Nevertheless, the aged bitumen in RAP materials strongly increases the risks of low-temperature and fatigue cracking [ 10 , 11 , 12 , 13 ]. Furthermore, the aging reactions of bitumen led to the mutual transformation and proportion imbalance between different chemical components.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

Ren

Liu

et al. 2022

Materials

View full text Add to dashboard Cite

This study aims to comprehensively investigate the rejuvenation efficiency of various self-developed compound rejuvenators on the physical, mechanical, and aging properties of aged bitumen, asphalt mortar, and mixture. The results revealed that the restoration capacity of vacuum distilled-oil rejuvenators on high-and-low temperature performance-grade of aged bitumen is more significant. In contrast, an aromatic-oil based rejuvenator is good at enhancing low-temperature grade and aging resistance. Moreover, the temperature and time of the curing conditions for mixing recycling of asphalt mixture were optimized as 150 °C and 120 min. Furthermore, the sufficient anti-rutting, structural stability, and moisture resistance of recycled asphalt mixture affirmed the rejuvenation efficiency of compound rejuvenators.

show abstract

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

Ren

Liu

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…Rapiol performed better than Cyclogen for fatigue at low RAP content and low-stress level. Recently, Cyclogen, Rapiol, and WCO were used as rejuvenators to assess their effects on moisture resistance of 50% RAP mixtures [99]. As a result, asphalt with RAP demonstrated more resistance against water than rejuvenated and virgin HMA.…”

Section: Rejuvenation Of Recycled Asphalt Using Commercial Rejuvenatorsmentioning

confidence: 99%

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

et al. 2021

View full text Add to dashboard Cite

Reclaimed asphalt pavement (RAP) has received much attention recently due to its increased use in hot mix asphalt (HMA) pavements to enhance pavement sustainability. The use of aged asphalt in RAP, which is highly oxidised and has lost its properties due to exposure to traffic loads and climatic conditions throughout its lifespan, can cause asphalt mixtures to stiffen and embrittle, thus negatively affecting the behaviour of asphalt mixtures. This issue may be resolved by including rejuvenating agents that can restore both physical and rheological properties of aged asphalt by increasing maltene fractions and decreasing asphaltene. However, the high restoration capacity of any kind of rejuvenating agent does not assure the durability of restored aged asphalt. This study explored the performance and durability of rejuvenated asphalt mixtures embedded with several types of rejuvenators identified from the extensive literature review. The study serves as a significant reference to predict future challenges in rejuvenating aged asphalt.

show abstract

“…Ziari, in another research, examined the efects of Cyclogen rejuvenator on asphalt mixtures containing 50% RAP material using dynamic creep, resilient modulus, low-temperature fracture energy, and ITS tests. Results showed that the use of rejuvenator led to an increase in the fow number, resilient modulus, and tensile strength of RAP mixtures compared to HMA mixture [37]. Moniri et al investigated the efect of Cyclogen as a rejuvenator and glass fber on the cracking behavior of recycled asphalt mixtures.…”

Section: Introductionmentioning

confidence: 99%

Laboratory Investigation of Reclaimed Asphalt Mixtures Containing Cyclogen and Vacuum Bottom Rejuvenators

Ziari

Mojaradi

Saadatjoo

et al. 2023

Advances in Civil Engineering

Self Cite

View full text Add to dashboard Cite

The use of reclaimed asphalt pavement (RAP) to create recycled asphalt mixture is attracting great interest because of landfill space decrease and natural resources saving. Also, incorporating rejuvenators is an effective method to promote the utilization of RAP materials in hot mix asphalt (HMA) production. The main goal of this study was to evaluate the effect of Cyclogen and vacuum bottom (VB) rejuvenators on the performance of RAP mixtures against moisture sensitivity, rutting resistance, and tensile strength. In this regard, mixtures were constructed with different RAP contents (0, 35, and 70% by asphalt mix weight) and virgin aggregates. Furthermore, three contents of Cyclogen (0, 5, and 10%) and VB (0, 15, and 30%) by the weight of RAP binder were used. The laboratory test results revealed that RAP materials enhanced the indirect tensile strength, rutting resistance, and moisture sensitivity of asphalt samples. Moreover, increasing RAP content improved the rutting resistance and permanent deformations of asphalt samples. The addition of RAP also enhanced the resilient modulus and tensile strength of asphalt samples; this increase was subject to RAP content applied. Furthermore, the effect of rejuvenators on the performance characteristics of RAP mixtures showed that adding VB and Cyclogen decreased tensile strength, resilient modulus, and strain creep and increased the moisture sensitivity of RAP mixtures.

show abstract

Evaluation of performance properties of 50% recycled asphalt mixtures using three types of rejuvenators

Cited by 31 publications

References 15 publications

A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

A Comprehensive Study on the Rejuvenation Efficiency of Compound Rejuvenators for the Characterization of the Bituminous Binder, Mortar, and Mixture

A Review on the Durability of Recycled Asphalt Mixtures Embraced with Rejuvenators

Laboratory Investigation of Reclaimed Asphalt Mixtures Containing Cyclogen and Vacuum Bottom Rejuvenators

Contact Info

Product

Resources

About