Toughness modification of waterborne epoxy emulsified asphalt by waterborne polyurethane elastomer

Article Construction & Building Technology

Phase structure characterization and compatibilization mechanism of epoxy asphalt modified by thermoplastic elastomer (SBS)

Peijun Xu et al.

Summary: The poor compatibility between epoxy resin and asphalt results in delamination and segregation. The use of SBS to modify epoxy asphalt greatly improves compatibility and enhances its mechanical properties.

CONSTRUCTION AND BUILDING MATERIALS (2022)

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Article Thermodynamics

Microstructure and dynamic mechanical properties epoxy/asphaltene composites

Xiaocheng Han et al.

Summary: The study found that introducing asphaltene fillers into epoxy resin affects the material properties, such as increasing viscosity, enhancing Young's modulus, and storage modulus. With an increase in asphaltene content, aggregation and network structures appear in the microstructure, while there is minimal impact on glass transition temperature, damping properties, and thermal stability.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2022)

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Article Green & Sustainable Science & Technology

Effects of waterborne polyurethane on storage stability, rheological properties, and VOCs emission of crumb rubber modified asphalt

Yuechao Zhao et al.

Summary: This study investigates the use of waterborne polyurethane as a shell material to package crumb rubber and prepare a porous composite modifier for asphalt. The experimental results demonstrate that this modified asphalt shows improved high temperature stability and fracture energy, while significantly reducing VOCs emissions.

JOURNAL OF CLEANER PRODUCTION (2022)

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Article Construction & Building Technology

Influence of oligomer content on viscosity and dynamic mechanical properties of epoxy asphalt binders

Ruikang Zhao et al.

Summary: The research investigated the impact of oligomer content on the viscosity, dynamic mechanical properties, and mechanical behaviors of hot-mix epoxy asphalt binders. The results showed that the viscosity decreased and the construction time increased with higher oligomer content. The storage modulus decreased at the glassy stage but increased at the rubbery stage. The epoxy asphalt binders exhibited two glass transition temperatures and increased in the epoxy oligomer content. The damping properties and tensile strength increased with higher oligomer content, while the elongation at break and toughness showed an opposite trend.

CONSTRUCTION AND BUILDING MATERIALS (2022)

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Article Construction & Building Technology

Effect of ionic emulsifiers on the properties of emulsified asphalts: An experimental and simulation study

Shuhui Wang et al.

Summary: This study investigates the effects of ionic emulsifiers on the performance of emulsified asphalts through laboratory experiments and molecular dynamic simulation. It is found that the cationic emulsifier STAC has a greater influence on the stability and rheological properties of emulsified asphalt compared to the anionic emulsifier SDBS. STAC improves the deformation resistance and elastic recovery of emulsified asphalt. The experimental and simulation results provide insight into the contribution of ionic emulsifiers to the stability and rheological properties of emulsified asphalts.

CONSTRUCTION AND BUILDING MATERIALS (2022)

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Article Construction & Building Technology

Influence of asphalt solvents on the rheological and mechanical properties of cold-mixed epoxy asphalt

Junyan Wang et al.

Summary: This study compared the performance of CEA prepared with five different asphalt solvents and found that biodiesel is the optimal choice. Additionally, approximately 60% of solvents were sealed in the CEA during curing, participating in the formation of the cross-linking network.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology

Study on the viscoelastic behaviour of the modified asphalt containing multi-walled carbon nanotubes (MWCNTs) and crumb rubber (CR)

Mulian Zheng et al.

Summary: The study investigates the viscoelastic behaviors of modified asphalt containing multi-walled carbon nanotubes and crumb rubber. The addition of these modifiers increased high-temperature viscosity and reduced temperature susceptibility of the base binder. The composite-modified asphalt showed better viscoelastic behaviors compared to asphalt modified with either crumb rubber or multi-walled carbon nanotubes alone, enhancing permanent deformation resistance, creep-recovery behaviors, and stress relaxation characteristics of the asphalt.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Review Construction & Building Technology

Recent applications and developments of Polyurethane materials in pavement engineering

Xianrui Li et al.

Summary: Polyurethane (PU) as an emerging polymer material has been widely utilized in civil engineering infrastructures and pavement engineering due to its excellent physical and chemical properties. PU materials can be used for construction, repair, reinforcement, and protection of infrastructure, as well as for new construction and maintenance of roads. The potential economic benefits and environmental impacts of using PU materials in pavement engineering for sustainability were discussed.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology

Stress-relaxation behavior of fiber-reinforced polymer sheets at elevated temperatures

Mohammad Houshmand Khaneghahi et al.

Summary: This research investigates the impact of fiber type, temperature, and strain level on the thermal relaxation performance of FRP sheets, finding that carbon fiber demonstrates higher resistance to thermal relaxation compared to glass fiber. The study also reveals that the failure modes of FRP sheets are sensitive to the applied temperature.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Green & Sustainable Science & Technology

Quantitative assessment and mechanism analysis of modification approaches for cold recycled mixtures with asphalt emulsion

Shi Dong et al.

Summary: This study evaluates the effects of different modification approaches on the mechanical properties and durability of CRMEs, finding that the addition of RA, SBR latex, and BRA can improve the comprehensive performance of the modified CRMEs, with RA having the most significant effect followed by BRA.

JOURNAL OF CLEANER PRODUCTION (2021)

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Article Construction & Building Technology

Chemical, morphological and rheological investigations of SBR/SBS modified asphalt emulsions with waterborne acrylate and polyurethane

Ling Xu et al.

Summary: This study investigated the impact of waterborne modifiers on the performance of SBR/SBS modified asphalt emulsion, revealing that waterborne cationic acrylate showed the best effectiveness in improving storage stability and high-temperature properties. It provides a more effective method for preparing high-performance cold binders.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology

A laboratory study of epoxy/polyurethane modified asphalt binders and mixtures suitable for flexible bridge deck pavement

Zengping Zhang et al.

Summary: The research shows that using polyurethane and epoxy resin to modify asphalt binder can effectively improve its mechanical strength, flexibility, and storage stability, with 8wt% PU and 32wt% EP being the optimal content. In terms of low-temperature cracking resistance, the EPU modified asphalt mixture significantly outperforms epoxy asphalt mixture and shows promising application prospects in flexible bridge deck pavement engineering.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology

Influence of polyethylene glycol (PEG) chain on the performance of epoxy asphalt binder and mixture

Zhaohui Min et al.

Summary: In this study, the toughness and low-temperature resistance of epoxy asphalt have been successfully improved by introducing PEG with different molecular weights, showing great potential for practical applications.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology

Laboratory investigation on the microstructure and performance of SBS modified epoxy asphalt binder

Jing Zhang et al.

Summary: Both SBS and epoxy resin are widely used in asphalt modification. The addition of SBS can increase the viscosity and thermal stability of asphalt, as well as improve the mechanical properties of neat EA. In ESBA, the SBS content is positively correlated with viscosity, thermal stability, and T-g increase.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Materials Science, Multidisciplinary

Realization of polyurethane/epoxy interpenetrating polymer networks with a broad high-damping temperature range using β-cyclodextrins as chain extenders

Qiang Feng et al.

Summary: A novel PU/EP IPN damping material with a broad high-damping temperature range was successfully prepared by using 21-hydroxyl β-cyclodextrins as chain extenders, which showed superior damping effects at different temperatures compared to traditional materials.

MATERIALS & DESIGN (2021)

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Article Construction & Building Technology

Performance evaluation of polyurethane/epoxy resin modified asphalt as adhesive layer material for steel-UHPC composite bridge deck pavements

Qiusheng He et al.

Summary: This study investigated the curing process and mechanical properties of PEA, finding that PEA has better high-temperature stability and excellent mechanical properties compared to SBS modified asphalt.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Review Construction & Building Technology

Applications of epoxy materials in pavement engineering

Qian Xiang et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

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Article Construction & Building Technology

Improving the compatibility of cold-mixed epoxy asphalt based on the epoxidized soybean oil

Jingjing Si et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

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Article Polymer Science

Internal stress analysis of epoxy adhesively-boned joints based on their thermomechanical properties at cryogenic temperature

Hong Li et al.

JOURNAL OF APPLIED POLYMER SCIENCE (2020)

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Article Construction & Building Technology

Performance evaluation of waterborne epoxy resin modified hydrophobic emulsified asphalt micro-surfacing mixture

Sen Han et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

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Article Construction & Building Technology

Magnesium hydroxide reinforced kenaf fibers/epoxy hybrid composites Mechanical and thermomechanical properties

N. Saba et al.

CONSTRUCTION AND BUILDING MATERIALS (2019)

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Article Engineering, Mechanical

Regulating microstructures of interpenetrating polyurethane-epoxy networks towards high-performance water-lubricated bearing materials

Ping Yu et al.

TRIBOLOGY INTERNATIONAL (2019)

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Article Engineering, Environmental

Effects of asphalt source and mixing temperature on the generated asphalt fumes

Shicong Mo et al.

JOURNAL OF HAZARDOUS MATERIALS (2019)

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Article Construction & Building Technology

Comparative analysis of cold-mixed epoxy and epoxy SBS-modified asphalts: Curing rheology, thermal, and mechanical properties

Jingjing Si et al.

CONSTRUCTION AND BUILDING MATERIALS (2018)

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Article Construction & Building Technology

Investigation of secondary phase separation and mechanical properties of epoxy SBS-modified asphalts

Ya Liu et al.

CONSTRUCTION AND BUILDING MATERIALS (2018)

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Article Construction & Building Technology

Preparation, properties and modification mechanism of polyurethane modified emulsified asphalt

Xiaohui Sheng et al.

CONSTRUCTION AND BUILDING MATERIALS (2018)

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Article Construction & Building Technology

Evaluation of moisture susceptibility of asphalt mixture using liquid anti-stripping agents

Dae-Wook Park et al.

CONSTRUCTION AND BUILDING MATERIALS (2017)

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Article Engineering, Multidisciplinary

Damping properties and the morphology analysis of the polyurethane/epoxy continuous gradient IPN materials

Xuesong Lv et al.

COMPOSITES PART B-ENGINEERING (2016)

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Article Construction & Building Technology

Toughness modification of hyperbranched polyester on epoxy asphalt

Peijun Xu et al.

CONSTRUCTION AND BUILDING MATERIALS (2016)

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Article Polymer Science

Water diffusion and swelling stresses in highly crosslinked epoxy matrices

Andrea Toscano et al.

POLYMER DEGRADATION AND STABILITY (2016)

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Review Construction & Building Technology

Alternate uses of epoxy asphalt on bridge decks and roadways

Qing Lu et al.

CONSTRUCTION AND BUILDING MATERIALS (2015)

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Article Instruments & Instrumentation

Preparation and characterization of a novel magnetorheological elastomer based on polyurethane/epoxy resin IPNs matrix

M. Yu et al.

SMART MATERIALS AND STRUCTURES (2015)

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Article Construction & Building Technology

Flame retardancy, thermal, and mechanical properties of mixed flame retardant modified epoxy asphalt binders

Yuge Zhang et al.

CONSTRUCTION AND BUILDING MATERIALS (2014)

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Article Energy & Fuels

Rheological, microscopic, and chemical characterization of the rejuvenating effect on asphalt binders

Xiaokong Yu et al.

FUEL (2014)

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Article Materials Science, Multidisciplinary

Torsional, tensile and structural properties of acrylonitrile-butadiene-styrene clay nanocomposites

Priyanka Singh et al.

MATERIALS & DESIGN (2014)

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Article Polymer Science

Phase separation of poly (methyl methacrylate)/poly (styrene-co-acrylonitrile) blends in the presence of silica nanoparticles

Jianping Gao et al.

POLYMER (2012)

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Article Engineering, Multidisciplinary

The effect of a rapid curing process on the surface finish of a carbon fibre epoxy composite

M. L. Herring et al.

COMPOSITES PART B-ENGINEERING (2011)

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Article Materials Science, Composites

Dynamic Mechanical Analysis of Pineapple Leaf/Glass Hybrid Fiber Reinforced Polyester Composites

L. Uma Devi et al.

POLYMER COMPOSITES (2010)

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Toughness modification of waterborne epoxy emulsified asphalt by waterborne polyurethane elastomer

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