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Adhesion between Modified Binders and Aggregate Minerals at Ambient Conditions Measured with Particle-Probe Scanning Force Microscopes

Li, Yujie / Yang, Jie / Tan, Ting

Accurate determination of adhesion between asphalt binders and aggregates is essential to pavement performance. In this study, particle-probe scanning force microscopes were used to measure the adhesion between mineral microspheres representing the primary aggregate constituents and various control (PG 64-22 and PG 58-22) and modified binders. Unit surface energies were collected to differentiate the adhesion between various aggregate-binder pairs. Results showed that the alumina-binder pair exhibited the highest adhesion among various combinations. No monotonic trends were detected for adhesion between silica-binder or calcium carbonate-binder pairs. Height and amplitude scans were also performed to characterize microstructural variations between different modified binders.

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Adhesion between Modified Binders and Aggregate Minerals at Ambient Conditions Measured with Particle-Probe Scanning Force Microscopes

Li, Yujie / Yang, Jie / Tan, Ting

Accurate determination of adhesion between asphalt binders and aggregates is essential to pavement performance. In this study, particle-probe scanning force microscopes were used to measure the adhesion between mineral microspheres representing the primary aggregate constituents and various control (PG 64-22 and PG 58-22) and modified binders. Unit surface energies were collected to differentiate the adhesion between various aggregate-binder pairs. Results showed that the alumina-binder pair exhibited the highest adhesion among various combinations. No monotonic trends were detected for adhesion between silica-binder or calcium carbonate-binder pairs. Height and amplitude scans were also performed to characterize microstructural variations between different modified binders.

Adhesion between Modified Binders and Aggregate Minerals at Ambient Conditions Measured with Particle-Probe Scanning Force Microscopes

Li, Yujie / Yang, Jie / Tan, Ting

Accurate determination of adhesion between asphalt binders and aggregates is essential to pavement performance. In this study, particle-probe scanning force microscopes were used to measure the adhesion between mineral microspheres representing the primary aggregate constituents and various control (PG 64-22 and PG 58-22) and modified binders. Unit surface energies were collected to differentiate the adhesion between various aggregate-binder pairs. Results showed that the alumina-binder pair exhibited the highest adhesion among various combinations. No monotonic trends were detected for adhesion between silica-binder or calcium carbonate-binder pairs. Height and amplitude scans were also performed to characterize microstructural variations between different modified binders.

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Titel:

Adhesion between Modified Binders and Aggregate Minerals at Ambient Conditions Measured with Particle-Probe Scanning Force Microscopes

Beteiligte:

Li, Yujie (Autor:in) / Yang, Jie (Autor:in) / Tan, Ting (Autor:in)

Erschienen in:

Journal of Materials in Civil Engineering ; 29

Erscheinungsdatum:

03.04.2017

ISSN:

0899-1561 , 1943-5533

DOI:

https://doi.org/10.1061/(ASCE)MT.1943-5533.0001887

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Unbekannt

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