Searched for: author:"Schmets, A.J.M."
(1 - 16 of 16)
document
Nahar, S.N. (author), Schmets, A.J.M. (author), Scarpas, A. (author)
Trace elements and their concentrations play an important role in both chemical and physical properties of bitumen. Instrumental Neutron Activation Analysis (INAA) has been applied to determine the concentration of trace elements in bitumen. This method requires irradiation of the material with neutrons that transform the elements into...
conference paper 2016
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Nahar, S.N. (author), Schmets, A.J.M. (author), Kasbergen, C. (author), Schitter, G (author), Scarpas, A. (author)
Self-healing of bitumen is a property that positively contributes to the sustainability, maintenance requirements and cost effectiveness of asphalt pavements. Ideally one would like to design an asphalt mix with a well-defined healing potential. Although substantial research efforts have been dedicated to the healing mechanism in bitumen,...
conference paper 2016
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Hofko, B. (author), Eberhardsteiner, L. (author), Fussl, J. (author), Grothe, H. (author), Handle, F. (author), Hospodka, M. (author), Grossegger, D. (author), Nahar, S.N. (author), Schmets, A.J.M. (author), Scarpas, A. (author)
As a widely accepted concept, bitumen consists of four fractions that can be distinguished by their polarity. Highly polar asphaltene micelles are dispersed in a viscous phase of saturates, aromatics and resins (maltene phase). Different concentrations of asphaltenes in the bitumen result in a range of mechanical response properties. In an...
journal article 2015
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Nahar, S.N. (author), Schmets, A.J.M. (author), Schlangen, E. (author), Shirazi, M. (author), van de Ven, M.F.C. (author), Schitter, G. (author), Scarpas, A. (author)
Countermeasures to the ageing of bituminous asphalt binders is a highly important topic, both for service-life extension of asphalt ‘in the field’ and for recycling old pavements (RAP) into new structures with similar functional requirements as the original structure. Usually this is achieved by applying additives that restore the adhesive and...
conference paper 2014
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Nahar, S.N. (author), Mohajeri, M. (author), Schmets, A.J.M. (author), Scarpas, T. (author), Van de Ven, M.F.C. (author), Schitter, G. (author)
One of the challenges in designing recycled asphalt mixtures with a high amount of RAP is to estimate the blending degree between RAP binder and the added virgin bitumen. The extent of blending is crucial in this case as asphalt concrete response is influenced by the final binder properties. This paper focuses on the evaluation of interaction...
journal article 2013
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Pauli, A. (author), Schmets, A.J.M. (author), Kasbergen, C. (author), Varveri, K. (author), Scarpas, A. (author)
Bituminous materials form a class of materials that possess the intrinsic ability to selfheal. This self-healing capability is evidenced by the observation that the service life of these materials ‘in the field’ exceeds the service life as predicted by standard mechanical laboratory tests. This mismatch between laboratory prediction and field...
conference paper 2013
document
Nahar, S.N. (author), Schmets, A.J.M. (author), Scarpas, A. (author), Schitter, G. (author)
Bitumen is the binder in the composite material named asphalt concrete. Under cyclic mechanical loading of traffic passing over the pavement, eventually damage will initiate in the pavement, leading to eventual structural failure. This damaging process is accelerated by time dependent change of the mechanical properties of asphalt concrete due...
conference paper 2013
document
Pauli, A. (author), Schmets, A.J.M. (author), Kasbergen, C. (author), Varveri, K. (author), Scarpas, A. (author)
Bituminous materials form a class of materials that possess the intrinsic ability to selfheal. This self-healing capability is evidenced by the observation that the service life of these materials ‘in the field’ exceeds the service life as predicted by standard mechanical laboratory tests. This mismatch between laboratory prediction and field...
conference paper 2013
document
Nahar, S.N. (author), Schmets, A.J.M. (author), Scarpas, A. (author), Schitter, G. (author)
Bitumen is the binder in the composite material named asphalt concrete. Under cyclic mechanical loading of traffic passing over the pavement, eventually damage will initiate in the pavement, leading to eventual structural failure. This damaging process is accelerated by time dependent change of the mechanical properties of asphalt concrete due...
conference paper 2013
document
Nahar, S.N. (author), Dillingh, B. (author), Erkens, S.M.J.G. (author), Schmets, A.J.M. (author), Fischer, H.R. (author), Scarpas, A. (author), Schitter, G. (author)
Bituminous binders are known to have microstructures at typical length scales of micrometers. This microstructure can be probed with Atomic Force Microscopy (AFM). Now that worldwide several research groups are reporting AFM results on bitumen, it is becoming important to improve the understanding of the reproducibility and objectivity of the...
conference paper 2013
document
Schmets, A.J.M. (author), Nahar, S.N. (author), Dillingh, B. (author), Fischer, H. (author), Scarpas, A. (author), Erkens, S. (author)
In this report we present the background, the scientific and experimental approach and the results of AFM experiments performed on two different batches of bitumen. The specific bitumen researched in this project has also been studied in the context of the InfraQuest project ‘Pragmatisch Healing Onderzoek’. It has been known for quite some time...
report 2012
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Heitmann, T. (author), Schmets, A.J.M. (author), Gaddy, J. (author), Lamsal, J. (author), Petrovic, M. (author), Vojta, T. (author), Montfrooij, W. (author)
We present neutron-scattering results on the magnetic excitations in the spinel compounds Lix[Mn1.96Li0.04]O4 (x=0.2,0.6,0.8,1.0). We show that the dominant excitations below T?70?K are determined by Mn ions located in clusters, and that these excitations mimic the dynamic scaling found in quantum critical systems that also harbor magnetic...
journal article 2010
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Schmets, A.J.M. (author), Montfrooij, W. (author)
journal article 2008
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Schmets, A.J.M. (author)
The use of a material for a specific application is governed by considerations on the expected conditions during its lifetime. For aerospace applications for instance, lightness, reliability and thermal stability ofthe material are of major importance. No material will ever possess all the desired properties at the same time. Therefore the...
journal article 2006
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Van Loef, J. (author), Schmets, A.J.M. (author)
In januari 2004 werd Mars bezocht door de tweeling robotverkenners Spirit en Opportunity. Zij werden erop uitgestuurd om eindelijk het definitieve antwoord te geven op de vraag of er leven op Mars is geweest. Alles wijst er inmiddels op dat er op Mars ooit vloeibaar water stroomde. Of daarmee een bewijs geleverd is over het bestaan van leven op...
journal article 2005
document
Schmets, A.J.M. (author)
journal article 2004
Searched for: author:"Schmets, A.J.M."
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