Influence of Polymer Modified Binder Content from RAP on Stone Mastic Asphalt Rutting Resistance

Liphardt, Adam; Król, Jan; Radziszewski, Piotr

doi:10.1016/j.proeng.2016.08.142

Cited by 15 publications

(7 citation statements)

References 4 publications

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“…Liphardt showed that soft binders need to be used in addition to rejuvenators to recover old binders of reclaimed aggregate. This study also found that the use of soft asphalt and rejuvenators could improve the production and construction workability of recycled asphalt concrete [30]. Yang argued that the use of high-strength recycled asphalt materials could improve the plastic deformation resistance significantly but tends to reduce the crack resistance slightly [2].…”

Section: Introductionmentioning

confidence: 76%

Laboratory and Field Testbed Evaluation of the Performance of Recycled Asphalt Mixture Using High-Penetration Asphalt

Lee

Kim

2023

Buildings

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The application of recycled asphalt pavement (RAP) on a large scale is highly promoted to meet the current needs of carbon neutrality and sustainable development purposes. However, a majority of RAP mixture productions are currently relying on the restoring effects provided by the rejuvenators. Therefore, the study focuses on the feasibility of using high penetration asphalt binder (HPAB) in RAP mixture as a replacement for conventional rejuvenators. In this study, a recycled asphalt pavement mixture containing HPAB (RAP-H) was developed to resolve the cracking issue of RAP pavement in winter seasons owing to the rigid behavior of aged binders. To verify the applicability of the RAP-H mixture, the results of the quality standard test and mechanical performance test were compared with the reference RAP mixture having rejuvenator (RAP-R). Through the fatigue cracking test, by using Overlay Tester (OT) device, it was found that all specimens did not reach 93% load reduction after 1000 OT cycles, indicating a satisfied stress-bearing capacity. Additionally, the highest dynamic modulus of 27,275 MPa was found in the modified HPAB mixture, and this result is 4.4% higher than that of the reference mix. In the full-scale testbed, the long-term field applicability of the proposed approach was verified through field test construction. The measurement in practice reveals that the elastic modulus of RAP-H back-calculated from the FWD (Falling Weight Deflectometer) test is increased by more than 50% compared to RAP-R, which resulted in excellent performance characteristics of the HPAB pavement layer. In addition to the efficiency in the surface layer, an improved elastic modulus of the sub-base and subgrade layers in the HPAB section was found to be at 28.6% and 19.5%, respectively, compared to the RAP-R mix. In general, the performance of RAP-H satisfied all of the domestic and international quality and performance standards. The field test results confirmed the possibility of field application by showing performance higher than conventional recycled asphalt pavement.

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Section: Introductionmentioning

confidence: 76%

Laboratory and Field Testbed Evaluation of the Performance of Recycled Asphalt Mixture Using High-Penetration Asphalt

Lee

Kim

2023

Buildings

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“…Their results revealed that the mixture, which contains high percentage of RAP and PMB, meets the requirements of mechanical properties and sustainability of roads. Liphardt, Król and Radziszewski (2016) studied the effect of RAP which already contain PMB on rutting resistance in stone mastic asphalt (SMA) mixtures. It has been observed that adding more RAP-modified binders to asphalt mixes improves rutting resistance.…”

Section: Introductionmentioning

confidence: 99%

Investigation the effect of newly used polymer modified bitumen on the performance of hot mix asphalt containing reclaimed asphalt pavement

Chafat

Al-Ghurab

Al-Humeidawi

2021

srees

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The current research focuses on investigating the effect of using reclaimed asphalt pavement (RAP) on performance of hot mix asphalt (HMA) prepared with polymer modified bitumen (PMB) binder. This PMB used for the first time with HMA contained RAP. The mechanical properties and performance of HMA were assessed using several standard tests including Marshall, indirect tensile strength, creep compliance, and wheel track test. The RAP replacement was conducted up to 70% of total aggregate in HMA with an increment of 10%. The results of investigation showed, that the use of PMB binder prepared by addition novolac (phenol formaldehyde solid resin) and hexamine to conventional bitumen, significantly improved the performance of HMA contained RAP. Also, the optimum percentage of RAP replacement was found to be 50% of total aggregate in HMA. For this level of replacement, the rut depth reduced up to 38% of its original value.

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“…Use of RAP materials stiffens the asphalt mix and contributes in improving the rut resistance of the mix. Analysis of wheel track test with comparison to binder properties shows that increasing amount of modified binder from RAP, occurs in increasing in rut resistance of asphalt mix [6]. Fatigue performance of the RAP mixes has been found to improve up to a RAP content of 35% when compared with virgin mixes [7].…”

Section: Introduction a Generalmentioning

confidence: 99%

Performance Studies on Stone Mastic Asphalt Mixes with Reclaimed Asphalt Pavement

Anusha¹,

Akhilesh²,

Jagadeesh³

2021

IJRTE

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Stone mastic asphalt (SMA) is a gap graded mix which is categorised by more quantity of coarse aggregate, high asphalt content and fibre. Due to stone on stone contact and presences of high filler content, it acts as a stiff matrix and reduces the rutting due to heavy traffic load. This research presents a study on fatigue performance RAP replaced SMA mixes using VG 30 as binder along with elastomer as a modifier and results were compared with conventional SMA mix. The specimens prepared were tested using several laboratory test procedures: Marshall mix design, indirect tensile strength, moisture susceptibility, drain down test and Repeated load fatigue test. Test results showed Marshall Properties of the RAP mix improved up to a RAP content of 30% without elastomer modifier and RAP content up to 60% with elastomeric modifier. From the moisture susceptibility test results, the elastomeric modified SMA mix showed high resistance to moisture damage when compared to conventional mix and 30% RAP replacement mix. Repeated load fatigue test was conducted for different stress load and temperature and results showed elastomeric modified SMA mix offered high resistance to deformation across all stress level and temperature when compared to conventional and optimum RAP mix. As a fatigue loading increased resulted in decrease of number of fatigue cycles and increased in the initial tensile strain of the mix. As the percentage of RAP addition increased the initial tensile strain decreased.

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Influence of Polymer Modified Binder Content from RAP on Stone Mastic Asphalt Rutting Resistance

Cited by 15 publications

References 4 publications

Laboratory and Field Testbed Evaluation of the Performance of Recycled Asphalt Mixture Using High-Penetration Asphalt

Laboratory and Field Testbed Evaluation of the Performance of Recycled Asphalt Mixture Using High-Penetration Asphalt

Investigation the effect of newly used polymer modified bitumen on the performance of hot mix asphalt containing reclaimed asphalt pavement

Performance Studies on Stone Mastic Asphalt Mixes with Reclaimed Asphalt Pavement

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