Evaluation of ethylene–acrylic acid copolymer (EAA)-modified asphalt: Fundamental investigations on mechanical and rheological properties

Li, Xiangyong; Ouyang, Chunfa; Yuan, Ye; Gao, Qun; Zheng, Kangsheng; Yan, Jingjing

doi:10.1016/j.conbuildmat.2015.04.049

Cited by 21 publications

(6 citation statements)

References 32 publications

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“…Some conditions such as different environment, climate, heavy traffic, and tire pressure lead to various deteriorations in asphalt pavements. The most common deteriorations in pavements are the permanent deformations at high temperatures, fatigue cracks at intermediate temperatures, and thermal cracks at low temperatures [1,2,3,4,5,6,7,8]. Nowadays, asphalt binders are modified with various additives in order to prevent or reduce these deteriorations.…”

Section: Introductionmentioning

confidence: 99%

Physical, Chemical, Microstructural and Rheological Properties of Reactive Terpolymer-Modified Bitumen

Geçkil

2019

Materials

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In this study, the change in the physical, chemical, microstructural, and rheological properties of a road bitumen modified with reactive terpolymer (Elvaloy®RET) was investigated. For this purpose, four different Elvaloy®RET percentages (0%, 0.4%, 0.8%, and 1.2% by wt.) were mixed with B 160/220 bitumen. Firstly, the obtained samples were subjected to a short and long-term aging process using a rotating thin-film oven test and pressurized aging vessel, respectively. Then, the engineering characteristics of the samples were investigated using X-ray diffraction, scanning electron microscopy, and conventional and Superpave bitumen tests. The results showed that Elvaloy®RET reacted with the main macromolecular groups in the bitumen, and that the modified bitumens behaved as a homogenous single phase structure as a result of this reaction. Conventional tests showed that Elvaloy®RET-modified bitumens were much harder than pure bitumen and had better aging resistance. Furthermore, the penetration classes of these bitumens changed and their temperature sensitivities decreased significantly. Rheological tests showed that the Elvaloy®RET additive increased the resistance of the bitumen against fatigue cracking and particularly permanent deformation. Moreover, the high temperature performance class of the bitumen also increased. However, parallel to the hardening of the bitumen, a reduction in its resistance to cracking at low temperature was observed.

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Section: Introductionmentioning

confidence: 99%

Physical, Chemical, Microstructural and Rheological Properties of Reactive Terpolymer-Modified Bitumen

Geçkil

2019

Materials

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“…EAA is a kind of polymer and thermoplastic material combined with ethylene and acrylic acid. The ionic characters of EAA provide high adhesion to metals and other surfaces (Li et al, 2015; Otey et al, 1977; Otocka and Kwei, 1968). PRIMACOR 5986 made using EAA is selected for bonding PZT due to its low melting and softening points.…”

Section: Design and Working Principle Of The Reusable Pzt Transducermentioning

confidence: 99%

Reusable piezoelectric transducer for structural health monitoring using both Lamb wave and electromechanical impedance modes

Liu

Chai

Qing

2020

Journal of Intelligent Material Systems and Structures

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A variety of structural health monitoring techniques have been developed to support the efficient online monitoring of structural integrity. Moreover, Lamb wave and electromechanical impedance methods are increasingly used for structural health monitoring applications due to their high sensitivity and effectiveness in detecting damage. However, these techniques require transducers to be permanently attached to structures because of the usage of baselines recorded under the condition without damage. In this study, a reusable piezoelectric lead zirconate titanate transducer for monitoring corrosion damage on the aluminum plate is introduced, which can be removed from the test specimen and reused with the repeatability of signals. The reusable piezoelectric lead zirconate titanate transducer is bonded on the aluminum plate using the ethylene-acrylic acid copolymer with an aluminum enclosure. A series of experiments are conducted on an aluminum plate, including the investigation for repeatability of signals and the capability of corrosion detection of the designed piezoelectric lead zirconate titanate transducer through the Lamb wave and electromechanical impedance methods. The simulated corrosion defect with the area of 15 × 15 mm2 is detected during experiments. The experimental results confirm that the reusable piezoelectric lead zirconate titanate transducer can effectively evaluate the corrosion damage to plate structure and can be reused many times.

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“…Early rutting failures of pavements are one of the most serious pavement distresses, primarily due to high ambient temperatures and uncontrolled axle load. The main reasons for cracks occurring in the flexible pavement are the stiffening and embrittlement of the bitumen due to aging with the service life of pavement [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Rheological, Aging, and Microstructural Properties of Polycarbonate and Polytetrafluoroethylene Modified Bitumen

Ansar

Sikandar²,

Althoey³

et al. 2022

Polymers

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Deterioration of asphalt pavements due to massive load of vehicles and climatic variation has demanded the use of pavements construction material with an excellent resilience characteristic, resistance to permanent deformation, and most importantly, a much longer service lifespan. The main structural distresses in pavement construction are permanent deformation at high temperatures and fatigue cracking under repetitive traffic loadings. To comprehensively investigate the performance of bitumen penetration grade (PG) 70 against rutting, fatigue, and high temperature cracking in hot mix asphalt (HMA) pavements, polycarbonate (PC) and polytetrafluoroethylene (PTFE) were used. The investigation of the internal structure, rheological, and physical properties of base and modified bitumen (MB) mixes with different percentages of modifiers (0%, 2.5%, and 5%) by weight were performed via scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FTIR) analysis, X-ray diffraction (XRD) pattern analysis, rolling thin-film oven test (RTFOT), pressurized aging vessel (PAV), dynamic shear rheometer (DSR), rotational viscosity (RV), and bending beam rheometer (BBR). The results of the RV test indicate that modification of neat bitumen with polycarbonate and polytetrafluoroethylene increased the viscosity for polycarbonate-modified bitumen (PCMB), polytetrafluoroethylene-modified bitumen (PTFEMB), and for a blend of PCMB-PTFEMB by 44%, 50%, and 55.75% at 135 °C and 111.10%, 127.80%, and 138.88% at 165 °C, accordingly. BBR test results revealed that modifiers increased the rigidity of neat bitumen by 74.8%, 75.8%, and 74.5% at −16 °C, −22 °C, and −28 °C, respectively.

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Evaluation of ethylene–acrylic acid copolymer (EAA)-modified asphalt: Fundamental investigations on mechanical and rheological properties

Cited by 21 publications

References 32 publications

Physical, Chemical, Microstructural and Rheological Properties of Reactive Terpolymer-Modified Bitumen

Physical, Chemical, Microstructural and Rheological Properties of Reactive Terpolymer-Modified Bitumen

Reusable piezoelectric transducer for structural health monitoring using both Lamb wave and electromechanical impedance modes

Rheological, Aging, and Microstructural Properties of Polycarbonate and Polytetrafluoroethylene Modified Bitumen

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