Research Repository

See what's under the surface


Effect of ageing on the morphology and creep and recovery of polymer-modified bitumens (2018)
Journal Article
Cuciniello, G., Leandri, P., Filippi, S., Lo Presti, D., Losa, M., & Airey, G. (2018). Effect of ageing on the morphology and creep and recovery of polymer-modified bitumens. Materials and Structures, 51, doi:10.1617/s11527-018-1263-3

Polymer additives are used to improve the properties of road bitumens including their oxidative resistance. However, their usage as anti-oxidative materials remains relatively unclear. This study aims to investigate the changes in the morphology and... Read More

The effects of laboratory ageing on rheological and fracture characteristics of different rubberised bitumens (2018)
Journal Article
Subhy, A., Pires, G. M., Lo Presti, D., & Airey, G. (2018). The effects of laboratory ageing on rheological and fracture characteristics of different rubberised bitumens. Construction and Building Materials, 180, doi:10.1016/j.conbuildmat.2018.05.273

Ageing of bituminous materials can result in loss of the durability of a flexible pavement. Using rubberised bitumens can enhance pavement performance while at the same time it solves a serious waste disposal problem. Combining Warm Mix Asphalt (WMA)... Read More

Linear viscous approach to predict rut depth in asphalt mixtures (2018)
Journal Article
Al-Mosawe, H., Thom, N., Airey, G., & Albayati, A. (in press). Linear viscous approach to predict rut depth in asphalt mixtures. Construction and Building Materials, 169, doi:10.1016/j.conbuildmat.2017.11.065. ISSN 0950-0618

Rutting in asphalt mixtures is a very common type of distress. It occurs due to the heavy load applied and slow movement of traffic. Rutting needs to be predicted to avoid major deformation to the pavement. A simple linear viscous method is used i... Read More

Physical and rheological characterization of carbonated bitumen for paving applications (2017)
Journal Article
Apeagyei, A. K., & Airey, G. (2018). Physical and rheological characterization of carbonated bitumen for paving applications. Materials and Design, 140, doi:10.1016/j.matdes.2017.11.069. ISSN 0261-3069

In the paving industry, current attempts aimed at reducing greenhouse gas emissions have focused on the development of technologies that decrease bitumen viscosity so that asphalt mixtures can be produced at temperatures that are lower than conventio... Read More

Relative pavement performance for dual and wide-based tyre assemblies using a finite element method (2017)
Journal Article
Casey, D., Airey, G., & Grenfell, J. (2017). Relative pavement performance for dual and wide-based tyre assemblies using a finite element method. Journal of Testing and Evaluation, 45(6), doi:10.1520/JTE20160589. ISSN 0090-3973

There is a need to assess the realistic tire contact pressure created by a tire in contact with a pavement. The contact pressure is a function of tire type, axle loading, and tire inflation pressure (TiP). The research carried out considered dual tir... Read More

Laboratory evaluation of Rediset modified bitumen based on rheology and adhesion properties (2017)
Journal Article
Zhang, J., Airey, G., Grenfell, J., & Yao, Z. (2017). Laboratory evaluation of Rediset modified bitumen based on rheology and adhesion properties. Construction and Building Materials, 152, doi:10.1016/j.conbuildmat.2017.07.037. ISSN 0950-0618

Warm mix asphalt (WMA) could significantly reduce the production temperature of asphalt mixtures. Lower production temperature meaning reduced fossil fuel consumption and greenhouse gas emission which in turn avoid environmental pollution in the road... Read More

Evaluation of bio-materials’ rejuvenating effect on binders for high-reclaimed asphalt content mixtures (2017)
Journal Article
Jiménez del Barco Carrión, A., Perez-Martinez, M., Themeli, A., Lo Presti, D., Marsac, P., Pouget, S., …Airey, G. (in press). Evaluation of bio-materials’ rejuvenating effect on binders for high-reclaimed asphalt content mixtures. Materiales de Construcción, 67(327), doi:10.3989/mc.2017.04516

The interest in using bio-materials in pavement engineering has grown significantly over the last decades due to environmental concerns about the use of non-recoverable natural resources. In this paper, bio-materials are used together with Reclaimed... Read More

Self-healing of dense asphalt concrete by two different approaches: electromagnetic induction and infrared radiation (2017)
Journal Article
Ajam, H., Lastra-Gonzalez, P., Gomez-Meijide, B., Airey, G., & Garcia, A. (in press). Self-healing of dense asphalt concrete by two different approaches: electromagnetic induction and infrared radiation. Journal of Testing and Evaluation, 45(6), doi:10.1520/JTE20160612. ISSN 0090-3973

Self-healing of cracks in asphalt mixtures is a phenomenon that can be accelerated by reducing the viscosity of bitumen as it increases the capillarity flow through the cracks. One method to achieve this is by increasing temperature, which also produ... Read More

New simplified approach for obtaining a reliable plateau value in fatigue analysis of bituminous materials (2017)
Journal Article
Subhy, A., Lo Presti, D., & Airey, G. (2017). New simplified approach for obtaining a reliable plateau value in fatigue analysis of bituminous materials. Engineering Failure Analysis, 79, 263-273. doi:10.1016/j.engfailanal.2017.05.021

The Plateau Value (PV) based on the Ratio of Dissipated Energy Change (RDEC) approach has been proven to provide a unique relationship with the fatigue life, Nf, independent of loading mode, temperature and frequency. In this paper, a new simplified... Read More

Evaluation of the fracture performance of different rubberised bitumens based on the essential work of fracture (2017)
Journal Article
Subhy, A., Lo Presti, D., & Airey, G. (2017). Evaluation of the fracture performance of different rubberised bitumens based on the essential work of fracture. Engineering Fracture Mechanics, 179, doi:10.1016/j.engfracmech.2017.04.035. ISSN 0013-7944

The fracture performance of rubberised bitumen in addition to one pre-treated with a Warm Mix Additive (Sasobit®) was investigated using different test methods measuring different damage mechanisms. Two Recycled Tyre Rubber (RTR) modifiers together w... Read More

Evaluation of the degradation of fine asphalt-aggregate mixtures containing high reclaimed asphalt pavement contents (2017)
Journal Article
Sánchez, D. B., Grenfell, J., Airey, G., & Caro, S. (in press). Evaluation of the degradation of fine asphalt-aggregate mixtures containing high reclaimed asphalt pavement contents. Road Materials and Pavement Design, 18(sup2), doi:10.1080/14680629.2017.1304250. ISSN 1468-0629

This paper evaluates the mechanical properties and performance of the fine aggregate matrix (FAM) existing within full reclaimed asphalt pavement (RAP) asphalt mixtures, in terms of their rheological and fatigue deterioration properties. The RAP mate... Read More

Linear viscoelastic properties of high reclaimed asphalt content mixes with biobinders (2017)
Journal Article
Chailleux, E., Pouget, S., Barco Carrión, A., Barco Carrión, A. J. D., Lo Presti, D., Pouget, S., …Chailleux, E. (2017). Linear viscoelastic properties of high reclaimed asphalt content mixes with biobinders. Road Materials and Pavement Design, 18, 241-251. doi:10.1080/14680629.2017.1304253

The use of high Reclaimed Asphalt (RA) content mixtures together with binders produced from renewable resources (biobinders) is one of the current challenges in pavement engineering research. On the one hand, RA has been used for decades, but there a... Read More

Structural design of pavements incorporating foamed bitumen mixtures (2017)
Journal Article
Kuna, K., Airey, G., & Thom, N. (in press). Structural design of pavements incorporating foamed bitumen mixtures. Proceedings of the ICE - Construction Materials, doi:10.1680/jcoma.16.00039. ISSN 1747-650X

This paper presents a rational structural design methodology termed the ‘cumulative damage approach’ for road, port and airport pavements incorporating cold bituminous mixtures with foamed bitumen. This has been developed along with a laboratory test... Read More

Linear and nonlinear fractional hereditary constitutive laws of asphalt mixtures (2016)
Journal Article
Presti, D., D’Angelo, G., Pinnola, F., Di Paola, M., Mino, G., Di Mino, G., …Presti, D. L. (2016). Linear and nonlinear fractional hereditary constitutive laws of asphalt mixtures. Journal of Civil Engineering and Management, 22(7), 882-889. doi:10.3846/13923730.2014.914104

Abstract: The aim of this paper is to propose a fractional viscoelastic and viscoplastic model of asphalt mixtures using experimental data of several tests such as creep and creep recovery performed at different temperatures and at different stress l... Read More

Active fillers’ effect on in situ performances of foam bitumen recycled mixtures (2016)
Journal Article
Betti, G., Airey, G., Jenkins, K., Marradi, A., & Tebaldi, G. (in press). Active fillers’ effect on in situ performances of foam bitumen recycled mixtures. Road Materials and Pavement Design, 18(2), doi:10.1080/14680629.2016.1213486. ISSN 1468-0629

Cold recycling is one of the most employed rehabilitation techniques for asphalt pavements and it is becoming more and more important as reducing emissions becomes a priority in the reduction of the greenhouse effect. The main advantages of asphalt c... Read More

Development of a tool to assess in-situ curing of Foamed Bitumen Mixtures (2016)
Journal Article
Kuna, K., Airey, G., & Thom, N. (2016). Development of a tool to assess in-situ curing of Foamed Bitumen Mixtures. Construction and Building Materials, 124, doi:10.1016/j.conbuildmat.2016.07.086. ISSN 0950-0618

This paper discusses the simplest yet crucial mix design consideration of Foamed Bitumen Mixtures (FBMs); curing. The objective of the present study is to attain better understanding of the curing mechanism of FBMs and lessen the gap between laborato... Read More