|
1
|
Emminger C, Cakmak UD, Major Z. Multi-Step Relaxation Characterization and Viscoelastic Modeling to Predict the Long-Term Behavior of Bitumen-Free Road Pavements Based on Polymeric Resin and Thixotropic Filler. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3511. [PMID: 39063803 PMCID: PMC11278212 DOI: 10.3390/ma17143511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/10/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024]
Abstract
Asphalt pavements are fundamental to modern transportation infrastructure, requiring elasticity, firmness, and longevity. However, traditional asphalt, based on bitumen, faces several limitations. To improve pavement performance, polymer resins are being used to substitute bitumen and improve requirements. Therefore, a deep understanding of the material behavior is required. This study presents the analysis of the relaxation behavior of a poly(methyl methacrylate)-based pavement and the influence of mineral fillers. An approach using a linear elastic-viscoelastic material model was selected based on evidence and validated across the linear and nonlinear deformation range. The results reveal no influence of the mineral fillers on the relaxation behavior. The presented modification of the linear elastic and viscoelastic modeling reveals accurate results to predict long-term pavement performance. This approach offers a practical method for forecasting asphalt behavior. Further research is needed to incorporate deformation behavior into the model.
Collapse
Affiliation(s)
- Carina Emminger
- Institute of Polymer Product Engineering, Johannes Kepler University Linz, Altenbergerstraße 69, 4040 Linz, Austria; (U.D.C.); (Z.M.)
| | | | | |
Collapse
|
|
2
|
Xu T, Cui K, Nie C, Peng F, Cao R, Liu Z, Sun H, Li L. Bond Orientation-Determined Enthalpic Stress in Polymer Glasses upon Deformation. ACS Macro Lett 2023; 12:1251-1256. [PMID: 37643284 DOI: 10.1021/acsmacrolett.3c00387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The mechanical properties of polymer glass are determined by both intermolecular local packing structures and aligned intrachain configurations. These configurations involve multiple space scales, and the underlying mechanism is not well understood yet. By applying mechanical stimulation to cold-drawn polymer glasses, the present simulation work shows a one-to-one correspondence between arising retractive stress and the segment orientation parameter on the length scale of the intrachain connecting bond. Such retractive stress is a newly produced enthalpic stress when segment orientation on the length scale of bonds and particle mobility coexist. This reveals a potential mechanism of how the intrachain orientation on the length scale of bonds influences the mechanical behaviors of polymer glasses.
Collapse
Affiliation(s)
- Tingyu Xu
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Kunpeng Cui
- Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Cui Nie
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Fan Peng
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Renkuan Cao
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Ziwei Liu
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hao Sun
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liangbin Li
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| |
Collapse
|
|
3
|
Liu F, Wang J, Zhang H, Yao X. Experimental and constitutive analyses of the stress relaxation behavior of glassy polymers. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- Fan Liu
- State Key Laboratory of Subtropical Building Science South China University of Technology Guangzhou P. R. China
| | - Jin Wang
- Key Laboratory of Polymer Processing Engineering; National Engineering Research Center of Novel Equipment for Polymer Processing, Ministry of Education, School of Mechanical and Automotive Engineering South China University of Technology Guangzhou P.R. China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, School of Mechanical and Automotive Engineering South China University of Technology Guangzhou P.R. China
| | - He Zhang
- Key Laboratory of Polymer Processing Engineering; National Engineering Research Center of Novel Equipment for Polymer Processing, Ministry of Education, School of Mechanical and Automotive Engineering South China University of Technology Guangzhou P.R. China
- Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing, School of Mechanical and Automotive Engineering South China University of Technology Guangzhou P.R. China
| | - Xiaohu Yao
- State Key Laboratory of Subtropical Building Science South China University of Technology Guangzhou P. R. China
| |
Collapse
|
|
4
|
Abnormal brittle-ductile transition for glassy polymers after free and constrained melt stretching: The role of molecular alignment. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124199] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|