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Laboratory Study to Evaluate the In-Situ Use of Rejuvenator Seal Material to Restore In-Service Asphalt Pavement
Babol Noshirvani Univ Technol, Dept Civil Engn, Highway & Transportat Engn, Babol 9184795678, Iran..
Babol Noshirvani Univ Technol, Dept Civil Engn, Philosophy Highway & Transportat Engn, Babol 471487116, Iran..
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap.
Babol Noshirvani Univ Technol, Dept Civil Engn, Highway & Transportat Engn, Babol 4714887863, Iran..
2022 (Engelska)Ingår i: Journal of materials in civil engineering, ISSN 0899-1561, E-ISSN 1943-5533, Vol. 34, nr 10, artikel-id 04022248Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Rejuvenator seal material (RSM) is designed to revitalize an aged asphalt binder by spraying it on the surface of roads. It restores the mechanical properties of the existing pavement. This paper studied the effectiveness of RSMs containing cooking oil residue, motor oil residue, coal oil, solvent, and virgin or styrene-butadiene-styrene (SBS) modified 60/70 bitumen to improve the behavior of an in-service pavement. Three stages were followed to formulate RSMs. To achieve the effective oil, the penetration grade and softening point changes of rolling thin-film oven (RTFO) + pressure aging vessel (PAV) aged 60/70 bitumen mixing with different percentages of oils were studied. Then, the penetration depth of benzene, toluene, and xylene in hot mix asphalt (HMA) samples were measured to choose the most efficient solvent. Finally, the penetration depth of RSMs with various mixing ratios in HMA mixes was measured to determine the mix design and application values (g/m 2 ). RSM-A (5% COR + 5% MOR and 60/70 bitumen), RSM-B (5% COR + 5% CO and 60/70 bitumen), and RSM-C (5%COR + 5%CO and SBS modified 60/70 bitumen) were selected for further assessments. Other than the aforesaid RSMs, RejuvaSeal was used as a generic commercial substance. A British Pendulum Test was used to ensure sufficient skid resistance to reopen the traffic soon after distributing the RSMs. Dynamic shear rheometer and bending beam rheometer tests were used to investigate the theological properties of extracted bitumen from the upper 1.5 cm layer of the pavement with and without RSMs. Moreover, the fatigue behavior of rejuvenated asphalt mixtures was studied by the 4-point bending test. Based on the results, all RSMs had a positive effect on the softening of the aged bitumen. All RSMs regained the fatigue performance of the aged binder. However, they showed the reverse effect on the rutting resistance. RSM-C containing 5% COR + 5% CO and SBS modified 60/70 bitumen considerably modified the theological properties of the aged binder even better than those mixtures rejuvenated by RejuvaSeal.

Ort, förlag, år, upplaga, sidor
ASCE-AMER SOC CIVIL ENGINEERS , 2022. Vol. 34, nr 10, artikel-id 04022248
Nyckelord [en]
Aging, Asphalt pavement, Oil residue, In-situ, Rejuvenator seal materials (RSM), Fatigue, Rutting
Nationell ämneskategori
Infrastrukturteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-317206DOI: 10.1061/(ASCE)MT.1943-5533.0004399ISI: 000843195500028Scopus ID: 2-s2.0-85134877759OAI: oai:DiVA.org:kth-317206DiVA, id: diva2:1694902
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QC 20220912

Tillgänglig från: 2022-09-12 Skapad: 2022-09-12 Senast uppdaterad: 2022-09-12Bibliografiskt granskad

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Hesami, Ebrahim

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