Effects of phase-inversion waterborne epoxy resin on properties of cold patch waterborne epoxy emulsified asphalt

In order to evaluate effects of waterborne epoxy resin prepared by the phase-inversion method (phase-inversion waterborne epoxy resin) on properties of waterborne epoxy emulsified asphalt for cold patch engineering of asphalt pavement, a series of methods for evaluating properties of emulsified asphalt and casting resin were used. Results show that, with an increase in waterborne epoxy resin content, penetration, ductility, surface curing time of waterborne epoxy emulsified asphalt decrease and its adhesion degree, shear strength and bond strength increase. Moreover, its penetration, ductility and adhesion degree remain unchanged when the content of waterborne epoxy resin exceeds 20%, and its shear strength and bond strength increase most remarkably when the content of waterborne epoxy resin increases from 10% to 20%. The test results are explained by the surface fluorescent micromorphology of cured waterborne epoxy emulsified asphalt that, with the increase in waterborne epoxy resin content, epoxy resin particles firstly appear as segregated spots, and then change from spotted status to clustered status, and the epoxy resin phase gradually becomes a continuous phase. In conclusion, phase-inversion waterborne epoxy resin has effects on properties of the cold patch waterborne epoxy emulsified asphalt, and recommended content of waterborne epoxy resin is 20%.

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Influence of water-borne epoxy resin content on performance of waterborne epoxy resin compound SBR modified emulsified asphalt for tack coat

Construction and Building Materials ◽

10.1016/j.conbuildmat.2017.07.148 ◽

2017 ◽

Vol 153 ◽

pp. 774-782 ◽

Cited By ~ 25

Author(s):

Qian Zhang ◽

Yi-heng Xu ◽

Zhi-guang Wen

Keyword(s):

Epoxy Resin ◽

Resin Content ◽

Waterborne Epoxy ◽

Tack Coat ◽

Influence Of Water ◽

Waterborne Epoxy Resin ◽

Emulsified Asphalt ◽

Water Borne

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Compatibility of cured phase-inversion waterborne epoxy resin emulsified asphalt

Construction and Building Materials ◽

10.1016/j.conbuildmat.2019.116942 ◽

2019 ◽

Vol 229 ◽

pp. 116942 ◽

Cited By ~ 7

Author(s):

Yu Gu ◽

Boming Tang ◽

Lihong He ◽

Fan Yang ◽

Hao Wang ◽

...

Keyword(s):

Epoxy Resin ◽

Phase Inversion ◽

Waterborne Epoxy ◽

Waterborne Epoxy Resin ◽

Emulsified Asphalt

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Preparation Optimization and Performance Evaluation of Waterborne Epoxy Resin for Roads

Advances in Civil Engineering ◽

10.1155/2021/8977674 ◽

2021 ◽

Vol 2021 ◽

pp. 1-12

Author(s):

Fei Wang ◽

Hao Fu ◽

Guixiang Liu ◽

Chaohui Wang ◽

Sixin Yu

Keyword(s):

Epoxy Resin ◽

Phase Inversion ◽

Bending Strength ◽

Impact Resistance ◽

Inversion Method ◽

Bonding Performance ◽

Waterborne Epoxy ◽

Bonding Properties ◽

Waterborne Epoxy Resin ◽

Phase Inversion Method

To further improve the road performance of waterborne epoxy resin, it was prepared by using the phase inversion method. The tensile properties, bending properties, impact resistance, and storage stability of waterborne epoxy resin were determined. The bonding properties of waterborne epoxy resin were analyzed. At the same time, their properties were compared with those of waterborne epoxy resin prepared by using the curing agent emulsification method. The performance of waterborne epoxy resin was comprehensively evaluated based on multi-index grey target decision model. The results show that the optimum preparation parameters for the preparation of waterborne epoxy resin by phase inversion method are shear time 1.5 h, shear temperature 60°C, and shear rate 1300–1500 r/min. The suitable contents of emulsifier A and B are 18% and 16%, respectively. The tensile strength, elongation at break, bending strength, bending deformation, and impact strength of waterborne epoxy resin prepared by emulsifier A can reach 34.46 MPa, 12.96%, 85.37 MPa, 19.42 mm, and 15.66 kJ/m2, respectively. It shows improved mechanical strength, deformation ability, impact resistance, and bonding performance. The comprehensive properties of waterborne epoxy resin prepared by emulsifier A are the best. It is suggested to use phase inversion method to prepare waterborne epoxy resin for roads.

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