Compatibility of cured phase-inversion waterborne epoxy resin emulsified asphalt

Yu, Gu; Tang, Boming; He, Linghui; Yang, Fan; Wang, Hao; Ling, Jianming

doi:10.1016/j.conbuildmat.2019.116942

Cited by 49 publications

(12 citation statements)

References 24 publications

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“…Based on a literature review of recent studies on epoxy asphalt in the chemical industry, a modified aliphatic amine curing agent was selected due to the low curing temperature, fast curing rate and good flexibility for the EAB [18][19][20]. One challenge in formulating CHES epoxy asphalt is the compatibility between the epoxy resin, which is polar, and conventional asphalt, which is nonpolar [21][22][23]. AH70 grade asphalt (70# asphalt) could have better compatibility with epoxy resin than AH90 and AH110 grade asphalts because of the relatively high content of asphaltene and resins.…”

Section: Materials Selectionmentioning

confidence: 99%

Development and Laboratory Evaluation of a Cold Mix High-Early-Strength Epoxy Asphalt Concrete for Steel Bridge Deck Pavements

et al. 2021

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Epoxy asphalt concrete (EAC) is a widely used steel bridge deck pavement (SBDP) material. Due to the curing reaction, the EAC-based material needs a long curing period before opening to traffic, which in an inconvenience in the construction of SBDP. This study developed a cold mix high-early-strength (CHES) epoxy asphalt through the design of a compatilizer and curing agent system. The optimum formula of CHES epoxy asphalt was determined through a series of laboratory tests. By comparison of the performances of CHES EAC and some conventional EACs for SBDP, it was found that the developed CHES epoxy asphalt can significantly reduce the curing period, and the pavement performance of CHES EAC is, overall, excellent for application in SBDP. In addition, the sufficient allowable construction duration shows that the CHES EAC has a good construction workability.

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Section: Materials Selectionmentioning

confidence: 99%

Development and Laboratory Evaluation of a Cold Mix High-Early-Strength Epoxy Asphalt Concrete for Steel Bridge Deck Pavements

et al. 2021

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“…As illustrated in Figure 9, the peaks at 2952, 2921, and 2852 cm −1 are caused by the stretching vibration of methylene (-CH 2 -), which are judged as the characteristic group of carbon chains in asphalt [42]. The sharp and strong peak at 1460 cm −1 is the result of the bending vibration of C-H in methyl (-CH 3 ) or in methylene (-CH 2 -), and the peak near 1334 cm −1 is formed by the bending vibration of methyl (-CH 3 ).…”

Section: Modification Mechanism Analysis Of Wermentioning

confidence: 99%

Performance Characterization of Waterborne Epoxy Resin and Styrene–Butadiene Rubber Latex Composite Modified Asphalt Emulsion (WESAE)

2020

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Neat asphalt emulsions have poor physicochemical properties. In order to endow neat asphalt emulsions with excellent physicochemical properties and broaden their application as pavement, this study adopted the composite modification method using waterborne epoxy resin (WER) and styrene–butadiene rubber (SBR) latex. Firstly, a waterborne-epoxy–SBR composite modified asphalt emulsions (WESAEs) with different amounts of WER were prepared, and the storage stability, workability, and residual properties were characterized with a series of tests. Then, the performance of the WESAEs was comprehensively evaluated by multiobjective gray target decision-making method, through which the optimal amount of WER in WESAE was determined. Lastly, the modification mechanism of WER was revealed by Fourier-transform infrared spectroscopy test. The results show that the incorporation of WER improves the high-temperature performance, thermal stability, rheological property, and adhesion of the SBR modified asphalt emulsion (SBRAE) residues. However, an excessive amount of WER will adversely affect the storage stability, particle distribution uniformity, and workability of the WESAE binder. The WESAE with 3% WER showed the best comprehensive performance; thus, the optimal amount of WER is 3% of the weight of the WESAE. Additionally, modification of the SBRAE by WER is a physical blending process, meaning no chemical reaction occurs in the blending process.

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“…Modified emulsified asphalt is a widely studied and applied interlaminar waterproof bonding material. e waterborne epoxy resin emulsified asphalt (WEA) forms a three-dimensional network structure through the physical-chemical cross-linking of waterborne epoxy resin (WER) and curing agent, which retains the excellent thermal stability, bonding strength, and waterproof performance of epoxy resin and has good construction advantages of emulsified asphalt [17][18][19][20][21][22]. In the field of road engineering, many studies have been carried out on WEA as binder for microsurfacing and cold mix asphalt mixture [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Design Optimization and Performance Evaluation of the Open‐Graded Friction Course with Small Particle Size Aggregate

Wang

et al. 2021

Advances in Civil Engineering

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This study aims to optimize the bonding performance between the wearing course and the used pavement or the underlying layer and further improve the service quality and durability of the open-graded friction course with small particle size aggregate (ultrathin OGFC). The ultrathin OGFC including waterborne epoxy resin emulsified asphalt (WEA) bonding layer and open-graded asphalt concrete with 9.5 mm nominal maximum aggregate size gradation was optimized. The construction timing of the open-graded asphalt mixture was determined. The road performance, wear resistance, and interlaminar bonding durability of the ultrathin OGFC were comprehensively evaluated. The results show that, based on the basic properties of the open-graded asphalt mixture, its asphalt aggregate ratio is recommended to be 5.0–5.5%. Based on interlaminar shear strength, it is recommended that the open-graded asphalt mixture is paved immediately after WEA bonding material was sprayed, and the bonding layer does not spread aggregate. The WEA containing 20% waterborne epoxy resin (WER) is recommended as bonding layer for the ultrathin OGFC, and the optimized spraying amount is 1 kg/m2. The ultrathin OGFC has good antisliding, drainage, and wear resistance properties. The interlaminar bonding performance, water stability, and durability of WEA bonding layer are obviously better than those of high viscosity asphalt (HVA) and SBS-modified asphalt. The WEA bonding layer can better resist interlaminar shear failure and improve the service quality and service life of the ultrathin OGFC.

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Compatibility of cured phase-inversion waterborne epoxy resin emulsified asphalt

Cited by 49 publications

References 24 publications

Development and Laboratory Evaluation of a Cold Mix High-Early-Strength Epoxy Asphalt Concrete for Steel Bridge Deck Pavements

Development and Laboratory Evaluation of a Cold Mix High-Early-Strength Epoxy Asphalt Concrete for Steel Bridge Deck Pavements

Performance Characterization of Waterborne Epoxy Resin and Styrene–Butadiene Rubber Latex Composite Modified Asphalt Emulsion (WESAE)

Design Optimization and Performance Evaluation of the Open‐Graded Friction Course with Small Particle Size Aggregate

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