Investigating the Addition of Organomontmorillonite Nanoclay and Its Effects on the Performance of Asphalt Binder

被引：5

作者：

Monteiro, Liniker ^{[1
]}

Moghaddam, Taher Baghaee ^{[2
]}

Shafiee, Mohammad ^{[3
]}

Hashemian, Leila ^{[4
]}

机构：

[1] Univ Alberta, Dept Civil & Environm Engn, 1-060 Markin CNRL Nat Resources Engn Facil,9105 11, Edmonton, AB T6G 2W2, Canada

[2] Univ Alberta, Dept Civil & Environm Engn, 6-372 Donadeo Innovat Ctr Engn,9211 116 St NW, Edmonton, AB T6G 1H9, Canada

[3] Natl Res Council Canada, Bldg M-20,1200 Montreal Rd, Ottawa, ON K1A 0R6, Canada

[4] Univ Alberta, Dept Civil & Environm Engn, 7-255 Donadeo Innovat Ctr Engn,9211 116 St NW, Edmonton, AB T6G 1H9, Canada

来源：

JOURNAL OF MATERIALS IN CIVIL ENGINEERING | 2023年 / 35卷 / 08期

关键词：

Asphalt binder; Aging resistance; Modification; Nano materials; Rheological property; RHEOLOGICAL PROPERTIES; POLYMER; MIX;

D O I：

10.1061/JMCEE7.MTENG-15035

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Asphalt binder aging is a complex phenomenon that plays an essential role in reducing flexible pavement serviceability. The aging resistance of asphalt binder can be enhanced through the binder modification. This research investigates the impact of aging on unmodified and organo-montmorillonite (OMMT) nanoclay modified asphalt binders. In this study, laboratory aging is carried out for asphalt binders modified with two types of OMMT nanoclays at different dosages (2% and 4% by weight of the binder). The asphalt binders are subjected to short-term and long-term aging using a rolling thin-film oven and pressure aging vessel equipment. Rheological properties of the aged and unaged binders are determined using a dynamic shear rheometer. In addition, storage stability, full performance grading, and rutting resistance of the binders are evaluated and compared. Aging indices were calculated to investigate the aging behavior of the unmodified and modified binders. The results showed that the montmorillonite nanoclay-modified asphalts had improved resistance to aging compared with the unmodified binder.

引用

页数：10

共 44 条

[1]

AASHTO, 2021, AASHTO T 240

[2]

AASHTO, 2021, AASHTO M 320

[3]

AASHTO, 2022, AASHTO R28

[4] Engineering Physical Properties of Asphalt Binders through Nanoclay-Asphalt Interactions [J].

Abdelrahman, Magdy ;

Katti, Dinesh R. ;

Ghavibazoo, Amir ;

Upadhyay, Him Bandhu ;

Katti, Kalpana S. .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2014, 26 (12)

[5] Effect of nanoclay on performance of neat and SBS-modified bitumen and HMA [J].

Ameri, Mahmoud ;

Vamegh, Mostafa ;

Imaninasab, Reza ;

Rooholamini, Hamed .

PETROLEUM SCIENCE AND TECHNOLOGY, 2016, 34 (11-12) :1091-1097

[6]

American Association of State Highway and Transportation Officials (AASHTO), 2019, Standard Method of Test for Determining the Flexural Creep Stiffness of Asphalt Binder Using the Bending Beam Rheometer (BBR)

[7]

[Anonymous], 2016, STANDARD TEST METHOD, P1, DOI 10.1520/D1857-17.2

[8] Laboratory evaluation of antioxidants for asphalt binders [J].

Apeagyei, Alex K. .

CONSTRUCTION AND BUILDING MATERIALS, 2011, 25 (01) :47-53

[9]

Ashoori Siavash, 2017, Egyptian Journal of Petroleum, V26, P209, DOI 10.1016/j.ejpe.2016.04.002

[10]

ASTM, 2017, D6560 ASTM INT

← 1 2 3 4 5 →