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Onifade, I., Dinegdae, Y. H. & Birgisson, B. (2017). Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements. Frontiers of Structural and Civil Engineering, 11(3), 257-269
Åpne denne publikasjonen i ny fane eller vindu >>Hierarchical approach for fatigue cracking performance evaluation in asphalt pavements
2017 (engelsk)Inngår i: Frontiers of Structural and Civil Engineering, ISSN 2095-2430, E-ISSN 2095-2449, Vol. 11, nr 3, s. 257-269Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this paper, a hierarchical approach is proposed for the evaluation of fatigue cracking in asphalt concrete pavements considering three different levels of complexities in the representation of the material behaviour, design parameters characterization and the determination of the pavement response as well as damage computation. Based on the developed hierarchical approach, three damage computation levels are identified and proposed. The levels of fatigue damage analysis provides pavement engineers a variety of tools that can be used for pavement analysis depending on the availability of data, required level of prediction accuracy and computational power at their disposal. The hierarchical approach also provides a systematic approach for the understanding of the fundamental mechanisms of pavement deterioration, the elimination of the empiricism associated with pavement design today and the transition towards the use of sound principles of mechanics in pavement analysis and design.

sted, utgiver, år, opplag, sider
HIGHER EDUCATION PRESS, 2017
Emneord
fatigue cracking, energy based, crack initiation, mechanistic approach, pavement analysis
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-214885 (URN)10.1007/s11709-017-0410-1 (DOI)000409070100001 ()2-s2.0-85020510132 (Scopus ID)
Merknad

QC 20171023

Tilgjengelig fra: 2017-10-23 Laget: 2017-10-23 Sist oppdatert: 2018-02-26bibliografisk kontrollert
Bekele, A., Birgisson, B., Rydén, N. & Gudmarsson, A. (2017). Slow dynamic diagnosis of asphalt concrete specimen to determine level of damage caused by static low temperature conditioning. In: 43rd Annual Review of Progress in Quantitative Nondestructive Evaluation: . Paper presented at 43rd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2016, 17 July 2016 through 22 July 2016. American Institute of Physics (AIP), 1806, Article ID 080012.
Åpne denne publikasjonen i ny fane eller vindu >>Slow dynamic diagnosis of asphalt concrete specimen to determine level of damage caused by static low temperature conditioning
2017 (engelsk)Inngår i: 43rd Annual Review of Progress in Quantitative Nondestructive Evaluation, American Institute of Physics (AIP), 2017, Vol. 1806, artikkel-id 080012Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The phenomenon of slow dynamics has been observed in a variety of materials which are considered as relatively homogeneous that exhibit nonlinearity due to the presence of defects or cracks within them. Experimental realizations in previous work suggest that slow dynamics can be in response to acoustic drives with relatively larger amplitude as well as rapid change of temperature. Slow dynamics as a nonlinear elastic response of damaged materials is manifested as a sharp drop and then recovery of resonance frequency linearly with logarithmic time. In this work, slow dynamics recovery is intended to be used as a means of identifying and evaluating thermal damage on an asphalt concrete specimen. The experimental protocol for measuring slow dynamics is based on the technique of nonlinear resonance spectroscopy and is set up with non-contact excitation using a loud speaker and the data acquisition tool box of Matlab. Sweeps of frequency with low amplitude are applied in order to probe the specimen at its linear viscoelastic state. The drop and then recovery in fundamental axially symmetric resonance frequency is observed after the specimen is exposed to sudden temperature change. The investigation of the viscoelastic contribution to the change in resonance frequency and slow dynamics can help identify micro-damage in asphalt concrete samples.

sted, utgiver, år, opplag, sider
American Institute of Physics (AIP), 2017
Serie
AIP Conference Proceedings, ISSN 0094-243X ; 1806
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-208009 (URN)10.1063/1.4974637 (DOI)000403042900096 ()2-s2.0-85015994487 (Scopus ID)9780735414747 (ISBN)
Konferanse
43rd Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2016, 17 July 2016 through 22 July 2016
Merknad

QC 2017-06-08

Tilgjengelig fra: 2017-06-08 Laget: 2017-06-08 Sist oppdatert: 2017-11-10bibliografisk kontrollert
Guarin, A., Khan, A., Butt, A. A., Birgisson, B. & Kringos, N. (2016). An extensive laboratory investigation of the use of bio-oil modified bitumen in road construction. Construction and Building Materials, 106, 133-139
Åpne denne publikasjonen i ny fane eller vindu >>An extensive laboratory investigation of the use of bio-oil modified bitumen in road construction
Vise andre…
2016 (engelsk)Inngår i: Construction and Building Materials, ISSN 0950-0618, E-ISSN 1879-0526, Vol. 106, s. 133-139Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Several roads in Iceland with bio-oil modified surface dressings exhibited severe distresses such as bleeding, binder drain down, and eventually as surface dressing sticking to tires. Samples from six road sections were evaluated in the laboratory to determine the causes of the failure. Binders with and without bio-oil, rapeseed oil and fish oil, were evaluated through a comprehensive rheological and chemical characterization. Both oils, exhibited solubility issues with the bitumen; consequently, the oils covered the aggregates, preventing bonding between binder and stones. It appears that fish oil worked a little better than rapeseed oil for binder modification.

sted, utgiver, år, opplag, sider
Elsevier, 2016
Emneord
Binder rheological and chemical characterization, Bio-oil modified bitumen, Fish oil, Fluxed bitumen, Rapeseed oil
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-180911 (URN)10.1016/j.conbuildmat.2015.12.009 (DOI)000370103400014 ()2-s2.0-84951177325 (Scopus ID)
Eksternt samarbeid:
Merknad

QC 20160128. QC 20160319

Tilgjengelig fra: 2016-01-28 Laget: 2016-01-25 Sist oppdatert: 2017-11-30bibliografisk kontrollert
Butt, A. A., Birgisson, B. & Kringos, N. (2016). Considering the benefits of asphalt modification using a new technical LCA framework. Journal of Civil Engineering and Management, 22(5), 597-607
Åpne denne publikasjonen i ny fane eller vindu >>Considering the benefits of asphalt modification using a new technical LCA framework
2016 (engelsk)Inngår i: Journal of Civil Engineering and Management, ISSN 1392-3730, E-ISSN 1822-3605, Vol. 22, nr 5, s. 597-607Artikkel i tidsskrift (Fagfellevurdert) Accepted
Abstract [en]

Asphalt mixtures properties can be enhanced by modifying it with additives. Even though the immediatebenefits of using polymers and waxes to modify the binder properties are rather well documented, the effects of suchmodification over the lifetime of a road are seldom considered. To investigate this, a newly developed open technical lifecycle assessment (LCA) framework was used to determine production energy and emission limits for the asphaltadditives. The LCA framework is coupled to a calibrated mechanics based computational framework that predicts the intimepavement performance. Limits for production energy of wax and polymers were determined for the hypotheticalcase studies to show how LCA tools can assist the additives manufacturers to modify their production procedures andhelp road authorities in setting ‘green’ limits to get a real benefit from the additives over the lifetime of a road. From thedetailed case-studies, it was concluded that better understanding of materials will lead to enhanced pavement design andcould help in the overall reduction of energy usage and emissions.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2016
Emneord
life cycle assessment, asphalt binder additives, bitumen healing, calibrated mechanics based pavement design model, polymer, wax.
HSV kategori
Forskningsprogram
Byggvetenskap; Teknisk materialvetenskap; Transportvetenskap
Identifikatorer
urn:nbn:se:kth:diva-102762 (URN)10.3846/13923730.2014.914084 (DOI)000376794400002 ()2-s2.0-84940706774 (Scopus ID)
Merknad

QC 20160418

Tilgjengelig fra: 2012-09-25 Laget: 2012-09-25 Sist oppdatert: 2019-10-09bibliografisk kontrollert
Dinegdae, Y. H. & Birgisson, B. (2016). Design inputs variabilities influence on pavement performance reliability. In: Erkens et al. (Eds) (Ed.), Functional Pavement Design: . Paper presented at The 4th Chinese European Workshop (pp. 741-750).
Åpne denne publikasjonen i ny fane eller vindu >>Design inputs variabilities influence on pavement performance reliability
2016 (engelsk)Inngår i: Functional Pavement Design / [ed] Erkens et al. (Eds), 2016, s. 741-750Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Pavement design is a probabilistic process as it involves many random variables.Through the incorporation of reliability, pavement design methods consider inputparameters variabilities effect on pavement performance. Load and Resistance Factor Design(LRFD) is a typical example of reliability-based design procedure. In LRFD, a set of partialsafety factors are developed by modelling input parameters variabilities with representativeaverage conditions. This paper evaluates the impact input parameters variabilities have onestimated target reliability in the case when actual variabilities are different from assumedconditions. This was achieved by evaluating a field pavement section with various combinationsof input parameters variabilities. The optimized section for a given target reliability wasachieved through the mechanics-based LRFD procedure and the actual reliabilities of thevarious cases were obtained using a methodology that uses response surface approach andfirst order reliability method (FORM). The results have shown that the level of input parametersvariabilities used affect the target reliability considerably.

HSV kategori
Forskningsprogram
Byggvetenskap
Identifikatorer
urn:nbn:se:kth:diva-196879 (URN)000400496200078 ()2-s2.0-85019882813 (Scopus ID)978-1-138-02924-8 (ISBN)
Konferanse
The 4th Chinese European Workshop
Merknad

QC 20161129

Tilgjengelig fra: 2016-11-24 Laget: 2016-11-24 Sist oppdatert: 2018-09-19bibliografisk kontrollert
Dinegdae, Y. H. & Birgisson, B. (2016). Effects of truck traffic on top-down fatigue cracking performance of flexible pavements using a new mechanics-based analysis framework. International Journal on Road Materials and Pavement Design
Åpne denne publikasjonen i ny fane eller vindu >>Effects of truck traffic on top-down fatigue cracking performance of flexible pavements using a new mechanics-based analysis framework
2016 (engelsk)Inngår i: International Journal on Road Materials and Pavement Design, ISSN 1468-0629, E-ISSN 2164-7402Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

The mechanics-based analysis framework predicts top-down fatigue cracking initiation timein asphalt concrete pavements by utilising fracture mechanics and mixture morphology-basedproperty. To reduce the level of complexity involved, traffic data were characterised and incorporatedinto the framework using the equivalent single axle load (ESAL) approach. There isa concern that this kind of simplistic traffic characterisation might result in erroneous performancepredictions and pavement structural designs. This paper integrates axle load spectraand other traffic characterisation parameters into the mechanics-based analysis framework andstudies the impact these traffic characterisation parameters have on predicted fatigue crackingperformance. The traffic characterisation inputs studied are traffic growth rate, axle load spectra,lateral wheel wander and volume adjustment factors. For this purpose, a traffic integrationapproach which incorporates Monte Carlo simulation and representative traffic characterisationinputs was developed. The significance of these traffic characterisation parameters wasestablished by evaluating a number of field pavement sections. It is evident from the resultsthat all the traffic characterisation parameters except truck wheel wander have been observedto have significant influence on predicted top-down fatigue cracking performance.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2016
Emneord
asphalt pavement, axle load spectra, ESAL, fatigue, mechanics-based, Monte Carlo
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-196873 (URN)10.1080/14680629.2016.1251958 (DOI)
Merknad

QC 20161129

Tilgjengelig fra: 2016-11-24 Laget: 2016-11-24 Sist oppdatert: 2017-11-29bibliografisk kontrollert
de Frias Lopez, R., Silfwerbrand, J., Jelagin, D. & Birgisson, B. (2016). Force transmission and soil fabric of binary granular mixtures. Geotechnique, 66(7), 578-583
Åpne denne publikasjonen i ny fane eller vindu >>Force transmission and soil fabric of binary granular mixtures
2016 (engelsk)Inngår i: Geotechnique, ISSN 0016-8505, E-ISSN 1751-7656, Vol. 66, nr 7, s. 578-583Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The effect of fines content on force transmission and fabric development of gap-graded mixtures under triaxial compression has been studied using the discrete-element method. Results were used to define load-bearing soil fabrics where the relative contributions of coarse and fine components are explicitly quantified in terms of force transmission. Comparison with previous findings suggests that lower particle size ratios result in higher interaction between components. A potential for instability was detected for underfilled fabrics in agreement with recent findings. It was also found that the threshold fines content provides an accurate macroscopic estimation of the transition between underfilled and overfilled fabrics.

sted, utgiver, år, opplag, sider
ICE Publishing, 2016
Emneord
discrete-element modelling, fabric/structure of soils, particle-scale behaviour
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-185171 (URN)10.1680/jgeot.14.P.199 (DOI)000377361700005 ()
Merknad

QC 20160721

Tilgjengelig fra: 2016-04-12 Laget: 2016-04-12 Sist oppdatert: 2017-11-30bibliografisk kontrollert
Onifade, I. & Birgisson, B. (2016). Investigation of Energy-Based Crack Initiation Threshold from Meso-Scale Asphalt Concrete Response. In: 8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements: . Paper presented at 8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements (pp. 679-685). Springer Netherlands
Åpne denne publikasjonen i ny fane eller vindu >>Investigation of Energy-Based Crack Initiation Threshold from Meso-Scale Asphalt Concrete Response
2016 (engelsk)Inngår i: 8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements, Springer Netherlands, 2016, s. 679-685Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The existence of a fundamental energy threshold for meso-scale crackinitiation is investigated using micromechanical modeling techniques. X-rayComputed Tomography (CT) is used to acquire the internal structure of an asphaltconcrete mixture while Digital Image Processing (DIP) techniques is used to segment and analyze the different phases present in the mixture. Finite Element (FE)modeling is used to simulate a tensile loading condition to establish a critical micromechanical criterion for meso-scale crack initiation. The meso-scale asphaltconcrete mixture is subjected to different loading rates to obtain the global strainenergy density at the instance when the critical micromechanical crack-initiationcriterion threshold is attained at different deformation rates. The result from thestudy shows that there exists a fundamental global strain energy density thresholdthat is invariant of the rate of loading at the instance of meso-scale crack initiation.The result of this study also shows the potential of the use of X-Ray computedtomography in understanding the cracking phenomenon in asphalt mixture.

sted, utgiver, år, opplag, sider
Springer Netherlands, 2016
Serie
RILEM Bookseries, ISSN 2211-0844 ; 13
Emneord
Micromechanical damage, Micro-crack initiation, Asphalt concrete, X-ray tomography
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-198660 (URN)10.1007/978-94-024-0867-6_95 (DOI)2-s2.0-85019180110 (Scopus ID)978-94-024-0866-9 (ISBN)978-94-024-0867-6 (ISBN)
Konferanse
8th RILEM International Conference on Mechanisms of Cracking and Debonding in Pavements
Forskningsfinansiär
Swedish Transport Administration
Merknad

QC 20161220

Tilgjengelig fra: 2016-12-19 Laget: 2016-12-19 Sist oppdatert: 2018-09-19bibliografisk kontrollert
Yideti, T., Jelagin, D. & Birgisson, B. (2016). Moisture Distribution Model to Predict Matric Suction in Unbound Granular Materials as a Function of Fines Content. In: TRB 95th Annual Meeting Compendium of Papers: . Paper presented at Transportation Research Board 95th Annual Meeting, Washington DC, United States.
Åpne denne publikasjonen i ny fane eller vindu >>Moisture Distribution Model to Predict Matric Suction in Unbound Granular Materials as a Function of Fines Content
2016 (engelsk)Inngår i: TRB 95th Annual Meeting Compendium of Papers, 2016Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The existence of water in the layers of unbound road aggregates significantly influences the performance of pavement structure. Thus, the ability to estimate volumetric water content and its capillary effect is very important. Several models have been suggested to link the matric suction of unbound materials to their water retention properties. In this paper, an analytical moisture distribution model is proposed by using packing theory-based framework for unbound granular materials. The framework was previously developed by the authors of this paper and identifies two basic components of unbound granular materials skeleton: primary structure (PS) - a range of interactive coarse grain sizes that forms the main load-carrying network in granular materials and secondary structure (SS) - a range of grain sizes smaller than the PS providing stability to the aggregate skeleton. In the new moisture model, water was considered to be stored as both menisci water between SS particles and water that fully filled in very small voids. In order to validate the model, predicted results are compared with measured matric suction of a granite material with different gradations. The results showed that the model is capable of predicting the experimentally measured matric suction values for a range of gradations.

Emneord
Aggregate gradation; Fines (Materials); Granular materials; Mathematical models; Moisture content; Validation
HSV kategori
Forskningsprogram
Byggvetenskap
Identifikatorer
urn:nbn:se:kth:diva-248687 (URN)
Konferanse
Transportation Research Board 95th Annual Meeting, Washington DC, United States
Merknad

This paper was sponsored by TRB committee AFP60 Standing Committee on Engineering Behavior of Unsaturated Soils.

QC 20190522

Tilgjengelig fra: 2019-04-09 Laget: 2019-04-09 Sist oppdatert: 2019-05-22bibliografisk kontrollert
Bjurström, H., Rydén, N. & Birgisson, B. (2016). Non-contact surface wave testing of pavements: comparing a rolling microphone array with accelerometer measurements. Smart Structures and Systems, 17(1), 1-15
Åpne denne publikasjonen i ny fane eller vindu >>Non-contact surface wave testing of pavements: comparing a rolling microphone array with accelerometer measurements
2016 (engelsk)Inngår i: Smart Structures and Systems, ISSN 1738-1584, E-ISSN 1738-1991, Vol. 17, nr 1, s. 1-15Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Rayleigh wave velocity along a straight survey line on a concrete plate is measured in order to compare different non-destructive data acquisition techniques. Results from a rolling non-contact data acquisition system using air-coupled microphones are compared to conventional stationary accelerometer results. The results show a good match between the two acquisition techniques. Rolling measurements were found to provide a fast and reliable alternative to stationary system for stiffness determination. However, the non-contact approach is shown to be sensitive to unevenness of the measured surface. Measures to overcome this disadvantage are discussed and demonstrated using both forward and reverse rolling measurements.

Emneord
Non-destructive testing, seismic testing, Lamb waves, surface waves, material characterization
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-155908 (URN)10.12989/sss.2016.17.1.001 (DOI)000373916400002 ()2-s2.0-84957577517 (Scopus ID)
Merknad

QC 20160412

Tilgjengelig fra: 2014-11-14 Laget: 2014-11-14 Sist oppdatert: 2017-12-05bibliografisk kontrollert
Organisasjoner
Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0003-0889-6078