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Challenges While Performing AFM on Bitumen
(EMPA, Switzerland)
(VP Transportation Technology, WRI)
KTH, School of Architecture and the Built Environment (ABE), Transport Science, Highway and Railway Engineering.
Show others and affiliations
2013 (English)In: Multi-Scale Modeling and Characterization of Infrastructure Materials: Proceedings of the International RILEM Symposium Stockholm, June 2013 / [ed] Niki Kringos, Björn Birgisson, David Frost, Linbing Wang, Springer Netherlands, 2013, 89-98 p.Conference paper, Published paper (Refereed)
Abstract [en]

Using modern microscopic techniques such as atomic force microscopy (AFM) has added significant knowledge on the microstructure of bitumen. The advantages of AFM are that it requires relatively simple sample preparation and operates under ambient conditions. As the use of AFM is becoming more widespread and useful the RILEM technical committee (TC) on nano bituminous materials NBM 231 has conducted a round robin study on this method, the results with respect to reproducibility, repeatability or accuracy limits are presented elsewhere. However, the execution of good quality AFM experiments especially on bitumen is still a challenging task. Sample extraction and preparation are very crucial and attention should be paid to obtain homogenous samples with a sufficient thickness and no surface contamination. The preparation should include a high temperature treatment to provide a smooth homogenous surface. Annealing/resting of the sample has to be sufficiently long, at least 24 h under ambient temperatures to ensure the formation of a (meta)stable micro-structure. Imaging should be done using non-contact (Tapping) mode with stiff cantilevers (resonance frequency ~300 kHz) with a minimum amount of damping as possible.

Place, publisher, year, edition, pages
Springer Netherlands, 2013. 89-98 p.
Series
RILEM Bookseries, ISSN 2211-0844 ; Vol. 8
National Category
Infrastructure Engineering
Research subject
SRA - Transport; Järnvägsgruppen - Infrastruktur
Identifiers
URN: urn:nbn:se:kth:diva-123705DOI: 10.1007/978-94-007-6878-9_7ISBN: 978-94-007-6877-2 (Print) 978-94-007-6878-9 (Online) (print)OAI: oai:DiVA.org:kth-123705DiVA: diva2:628853
Conference
RILEM Symposium on Multi Scale Modeling and Characterization of Infrastructure Materials; Stockholm, Sverige, 10-13 June, 2013
Note

QC 20140207

Available from: 2013-06-14 Created: 2013-06-14 Last updated: 2014-02-07Bibliographically approved

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