Conventional properties, rheological characteristics, and thermal performance of waste polyurethane modified asphalt with butyl rubber

被引：6

作者：

Dong, Fuqiang ^{[1
]}

Wang, Shiyu ^{[1
]}

Yang, Yansheng ^{[2
]}

Yu, Xin ^{[1
]}

Jiang, Yang ^{[1
]}

Zhang, Runhua ^{[3
]}

机构：

[1] Hohai Univ, Coll Civil & Transportat Engn, Nanjing 210098, Jiangsu, Peoples R China

[2] Beijing Municipal Rd & Bridge Bldg Mat Grp Co Ltd, R&D Ctr, Beijing 102600, Peoples R China

[3] Univ Wisconsin Madison, Dept Civil & Environm Engn, Madison, WI 53705 USA

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2024年 / 411卷

基金：

中国国家自然科学基金;

关键词：

WPU/BR composite modified asphalt; Low -temperature performance; Rheological characteristics; Thermal performance; Morphology;

D O I：

10.1016/j.conbuildmat.2023.134460

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

To enhance the low-temperature performance of waste polyurethane (WPU) modified asphalt, a composite modifier incorporating butyl rubber (BR) was investigated. In this study, recycled waste polyurethane for industrial filling is selected, which is belonging to the Polyether polyols. Various concentrations of BR were introduced to WPU modified binder, with and without stabilizer. The blends underwent conventional asphalt performance tests, dynamic shear rheometer (DSR), and bending beam rheometer (BBR) tests. Thermal performance and morphology were analyzed using differential scanning calorimeter (DSC) and fluorescence microscopy (FM). Fourier transform infrared spectroscopy (FTIR) experiments revealed the mechanism of WPU/BR modified asphalt. Results indicated that adding 3% BR to 15% WPU increased ductility at 5 celcius by over 5 times, elevating the performance grade from PG-22 to PG-28. BR addition lowered the glass transition temperature, enhancing stability at higher temperatures. Besides improving low-temperature performance, BR also enhanced high-temperature performance and deformation resistance. Functional group analysis suggested a chemical modification process. Considering overall performance and modification effects, the optimal composite modifier was found to be 15% WPU and 3% BR.

引用

页数：12

共 61 条

[1] Thermal, microscopic, and rheological characterization of rejuvenated asphalt binders [J].

Abdelaziz, Amal ;

Masad, Eyad ;

Martin, Amy Epps ;

Arambula-Mercado, Edith ;

Bajaj, Akash .

MATERIALS AND STRUCTURES, 2022, 55 (03)

[2] Rheological evaluation of ethylene vinyl acetate polymer modified bitumens [J].

Airey, GD .

CONSTRUCTION AND BUILDING MATERIALS, 2002, 16 (08) :473-487

[3] Polyurethane types, synthesis and applications - a review [J].

Akindoyo, John O. ;

Beg, M. D. H. ;

Ghazali, Suriati ;

Islam, M. R. ;

Jeyaratnam, Nitthiyah ;

Yuvaraj, A. R. .

RSC ADVANCES, 2016, 6 (115) :114453-114482

[4] Polymer modified asphalt binder - an approach for enhancing temperature sensitivity for emergency pavement repair [J].

Al Hawesah, Hayder ;

Sadique, Monower ;

Harris, Clare ;

Al Nageim, Hassan ;

Stopp, Karl ;

Pearl, Harry .

INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING, 2022, 23 (13) :4760-4774

[5] Investigation on physical, thermal and chemical properties of palm kernel oil polyol bio-based binder as a replacement for bituminous binder [J].

Alamawi, Mohab Yaser ;

Khairuddin, Faridah Hanim ;

Yusoff, Nur Izzi Md ;

Badri, Khairiah ;

Ceylan, Halil .

CONSTRUCTION AND BUILDING MATERIALS, 2019, 204 :122-131

[6] Investigation of the Physical Mechanical Properties and Durability of Sustainable Ultra-High Performance Concrete with Recycled Waste Glass [J].

Amin, Mohamed ;

Agwa, Ibrahim Saad ;

Mashaan, Nuha ;

Mahmood, Shaker ;

Abd-Elrahman, Mahmoud H. .

SUSTAINABILITY, 2023, 15 (04)

[7] Introduction of recycled polyurethane foam in mastic asphalt [J].

Angel Salas, Miguel ;

Perez-Acebo, Heriberto .

GRADEVINAR, 2018, 70 (05) :403-412

[8] Study of phase behavior of epoxy asphalt binders using differential scanning calorimetry [J].

Apostolidis, Panos ;

Elwardany, Michael ;

Andriescu, Adrian ;

Mensching, David J. ;

Youtcheff, Jack .

CONSTRUCTION AND BUILDING MATERIALS, 2023, 369

[9] Evaluating the effect of carbon nanotubes (CNTs) and recycled glass powder (RGP) on the rheological and mechanical properties of bitumen and hot mix asphalt (HMA) [J].

Barati, Mohammad ;

Zarei, Mohammad ;

Zahedi, Mohsen ;

Akbarinia, Farzad .

ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES, 2022, 8 (01) :755-773

[10] POLYURETHANE SYNTHESIS REACTIONS IN ASPHALTS [J].

BUKOWSKI, A ;

GRETKIEWICZ, J .

JOURNAL OF APPLIED POLYMER SCIENCE, 1982, 27 (04) :1197-1204

← 1 2 3 4 5 6 7 →