Effect of Waterborne Epoxy Resin on Properties of Modified Emulsified Asphalt and Its Microstructure

Wang, Panpan; Tian, Xiaoge; Z, Ren; Zhen, Shaohua

doi:10.1061/(asce)mt.1943-5533.0003793

Cited by 36 publications

(8 citation statements)

References 16 publications

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“…The quantitative relationship of G*/sinδ of the three materials is consistent with that of G*: at the dosages of 5%, 10%, and 20% G*/sinδ E20 > G*/sinδ E44 > G*/ sinδ E51 , while the values of G*/sinδ are similar at 15% dosage. Compared with research results of Wang et al, WER-EA in this experiment shows a 17328% increase in G*/sinδ under the same conditions, resulting in better high-temperature performance [19].…”

Section: Plos Onecontrasting

confidence: 49%

“…WER-EA samples with different dosages were prepared first. In order to evaluate the performance of samples, their evaporation residues were carried out [19]. Modifier dosage and sample preparation procedure are determined concerning the previous experimental results [23].…”

Section: Preparation and Test Methodsmentioning

confidence: 99%

“…G*/sinδ of WER-EA prepared by Li et al was significantly higher than that of Wang et al at the exact dosage. In general, the research on WER-EA has always been a concern [19]. Yin et al optimized the performance of WER with an epoxy value of 0.2 eq/100g emulsified asphalt to make it suitable for micro-surfacing [20].…”

Section: Plos Onementioning

confidence: 99%

“…The reason may be that IPN produced in WER-EA optimizes its high-temperature performance. The δ of WER-EA has a peak value because WER makes emulsified asphalt have thermosetting characteristics [19].…”

Section: Plos Onementioning

confidence: 99%

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Effect of epoxy value on the rheological properties and microcosmic mechanism of WER emulsified asphalt

Huang,

Shi,

Ouyang

2024

PLoS ONE

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Waterborne epoxy resin (WER), a cleaning material with exceptional high-temperature resistance, has attracted much attention to modify emulsified asphalt in the pavement material field. Epoxy value is the critical characteristic index of WER. In this research, three WER with the epoxy values of 0.20 eq/100g, 0.44 eq/100g, and 0.51 eq/100g were utilized as asphalt modifiers. The influence of epoxy value on WER-EA was investigated by comparing the rheological properties of three kinds of WER emulsified asphalt (WER-EA). The modification mechanism of WER-EA has been analyzed using FTIR and SEM. The results demonstrate that different WER-EA resulted in significantly different rheological properties. WER-EA with the epoxy value of 0.20 eq/100g (E20) performed best at high temperatures, with a maximum increase of 17477% in G*/sinδ compared to the neat asphalt and a maximum increase of 66.3% in G*/sinδ compared to the other two WER-EA. WER-EA with 0.44 eq/100g epoxy value (E44) performed best at low temperatures, with a maximum increase in m value of 39.4% and a maximum decrease in S value of 33.3% compared to the other two WER-EA. In addition, the interpenetrating polymer network (IPN) in E20 was observed to be more solid and stable, and IPN in E44 was more uniform. To summarize, lower epoxy value led to a higher degree of WER reaction and higher content of rigid groups, which is more conducive to optimizing the high-temperature property of WER-EA. WER with moderate epoxy value resulted in a low content of polar bonds and thus high content of flexible segments, which helps emulsified asphalt to form a more uniform IPN.

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Section: Plos Onecontrasting

confidence: 49%

Section: Preparation and Test Methodsmentioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

Section: Plos Onementioning

confidence: 99%

See 2 more Smart Citations

Effect of epoxy value on the rheological properties and microcosmic mechanism of WER emulsified asphalt

Huang,

Shi,

Ouyang

2024

PLoS ONE

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“…The repeated load of vehicles can cause damage to the asphalt pavement. In order to improve the road performance of asphalt pavement, road workers have developed a variety of modifiers [ 1 , 2 ] to enhance the service quality and service life of asphalt pavement [ 3 , 4 ]. With the continuous improvement of environmental protection requirements, the concept of sustainable development has been introduced into road engineering, and more and more bio-based modified materials have been applied to asphalt pavement.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of Waste Seashell as Modified Materials on Asphalt Pavement Performance

Fan

Liu

et al. 2022

Materials

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An increasing amount of waste seashells in China has caused serious environmental pollution and resource waste. This paper aims to solve these problems by using waste seashells as modified materials to prepare high-performance modified asphalt. In this study, seashell powder (SP) and stratum corneum-exfoliated seashell powder (SCESP) were adopted to prepare 10%, 20% and 30% of seashell powder-modified asphalt (SPMA) and stratum corneum-exfoliated seashell powder-modified asphalt (SCESPMA) by the high-speed shear apparatus, respectively. The appearance and composition of two kinds of SPs were observed and determined by the scanning electron microscope (SEM). The types of functional groups, temperature frequency characteristics, low temperature performance and adhesion of SPMA were tested by the Fourier-transform infrared (FTIR) spectrometer, dynamic shear rheometer (DSR), bending beam rheometer (BBR) and contact angle meter. The results show that the SP and SCESP are rough and porous, and their main component is CaCO3, which is physically miscible to asphalt. When the loading frequency ranges from 0.1 Hz to 10 Hz, the complex shear modulus (G*) and phase angle (δ) of SPMA and SCESPMA increase and decrease, respectively. At the same load frequency, SCESPMA has a larger G* and a smaller δ than SPMA. At the same temperature, SCESPMA has a larger rutting factor (G*/sin δ) and better high-temperature deformation resistance than SPMA. SP and SCESP reduce the low-temperature cracking resistance of asphalt, of which SCESP has a more adverse effect on the low-temperature performance of asphalt than SP. When SP and SCESP are mixed with asphalt, the cohesion work (Waa), adhesion work (Was) and comprehensive evaluation parameters of water stability (ER1, ER2 and ER3) of asphalt are improved. It is shown that both SP and SCESP have good water damage resistance, of which SCESP has better water damage resistance than SP. These research results have important reference value for the application of waste biological materials in asphalt pavement.

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Matching Relationships for Mechanical Parameters of Asphalt Pavement Materials Considering Difference in Tension and Compression

Pan

Zhou²,

Zheng³

et al. 2022

Int. J. Pavement Res. Technol.

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Effect of Waterborne Epoxy Resin on Properties of Modified Emulsified Asphalt and Its Microstructure

Cited by 36 publications

References 16 publications

Effect of epoxy value on the rheological properties and microcosmic mechanism of WER emulsified asphalt

Effect of epoxy value on the rheological properties and microcosmic mechanism of WER emulsified asphalt

Analysis of the Influence of Waste Seashell as Modified Materials on Asphalt Pavement Performance

Matching Relationships for Mechanical Parameters of Asphalt Pavement Materials Considering Difference in Tension and Compression

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