All Outputs (12)

Effect of aggregate gradation on the stiffness of asphalt mixtures (2015)
Journal Article
Al-Mosawe, H., Thom, N., Airey, G., & Ai-Bayati, A. (2015). Effect of aggregate gradation on the stiffness of asphalt mixtures. International Journal of Pavement Engineering and Asphalt Technology, 16(2), https://doi.org/10.1515/ijpeat-2015-0008

Aggregate gradation plays an important role in the behaviour of asphalt mixtures. Packing of aggregate is a very important factor that will be affected by changing the aggregate gradation. Many researchers have investigated different ways of describi... Read More about Effect of aggregate gradation on the stiffness of asphalt mixtures.

Rubberised bitumen manufacturing assisted by rheological measurements (2015)
Journal Article
Subhy, A., Subhy, A., Lo Presti, D., & Airey, G. (2016). Rubberised bitumen manufacturing assisted by rheological measurements. Road Materials and Pavement Design, 17(2), 290-310. https://doi.org/10.1080/14680629.2015.1079549

This paper investigates the effect of processing temperature and time on the rheological properties of recycled tyre rubber-modified bitumens (RTR-MBs) produced using two different base binders and an ambient ground crumb rubber modifier (CRM). The p... Read More about Rubberised bitumen manufacturing assisted by rheological measurements.

Tests Campaign Analysis to Evaluate the Capability of Fragmentation Test to Characterize Recycled Asphalt Pavement (RAP) Material (2015)
Conference Proceeding
Perraton, D., Tebaldi, G., Dave, E., Bilodeau, F., Giacomello, G., Grilli, A., …Marsac, P. (2016). Tests Campaign Analysis to Evaluate the Capability of Fragmentation Test to Characterize Recycled Asphalt Pavement (RAP) Material. In F. Canestrari, & M. N. Partl (Eds.), 8th RILEM International Symposium on Testing and Characterization of Sustainable and Innovative Bituminous Materials (965-976). https://doi.org/10.1007/978-94-017-7342-3_77

Cold and hot recycling of reclaimed asphalt pavement (RAP) is increasingly gaining in popularity worldwide due to the need to increase the sustainability of asphalt pavement, both from environmental and economic perspectives. Despite the increasing o... Read More about Tests Campaign Analysis to Evaluate the Capability of Fragmentation Test to Characterize Recycled Asphalt Pavement (RAP) Material.

Experimental evaluation of cohesive and adhesive bond strength and fracture energy of bitumen-aggregate systems (2015)
Journal Article
Zhang, J., Airey, G. D., & Grenfell, J. R. (2016). Experimental evaluation of cohesive and adhesive bond strength and fracture energy of bitumen-aggregate systems. Materials and Structures, 49(7), 2653-2667. https://doi.org/10.1617/s11527-015-0674-7

Degradation of asphalt pavements is an inevitable phenomenon due to the combined effects of high traffic loads and harsh environmental conditions. Deterioration can be in the form of cohesive failure of the bitumen and/or bitumen-filler mastic or by... Read More about Experimental evaluation of cohesive and adhesive bond strength and fracture energy of bitumen-aggregate systems.

Influence of aggregate mineralogical composition on water resistance of aggregate–bitumen adhesion (2015)
Journal Article
Zhang, J., Apeagyei, A. K., Airey, G. D., & Grenfell, J. R. (2015). Influence of aggregate mineralogical composition on water resistance of aggregate–bitumen adhesion. International Journal of Adhesion and Adhesives, 62, https://doi.org/10.1016/j.ijadhadh.2015.06.012

The effects of aggregate mineralogical composition on moistures sensitivity of aggregate–bitumen bonds were investigated using four aggregate types (two limestone and two granite)and two bitumen grades (40/60 penand70/100pen). Moisture sensitivity... Read More about Influence of aggregate mineralogical composition on water resistance of aggregate–bitumen adhesion.

Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates (2015)
Journal Article
Cuadri, A., Partal, P., Ahmad, N., Grenfell, J., & Airey, G. (2015). Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates. Construction and Building Materials, 93, https://doi.org/10.1016/j.conbuildmat.2015.05.098

Moisture damage is one of the major premature failures that worsens the performance and shortens service life of pavements. This research assesses the effect that two chemical modifiers (thiourea and an isocyanate-functionalized castor oil prepolymer... Read More about Chemically modified bitumens with enhanced rheology and adhesion properties to siliceous aggregates.

Influence of aggregate absorption and diffusion properties on moisture damage in asphalt mixtures (2015)
Journal Article
Apeagyei, A. K., Grenfell, J. R., & Airey, G. (in press). Influence of aggregate absorption and diffusion properties on moisture damage in asphalt mixtures. Road Materials and Pavement Design, 16(sup1), https://doi.org/10.1080/14680629.2015.1030827

An experimental study was undertaken to characterise moisture sensitivity of asphalt mixtures by comparing certain physico-chemical properties of selected aggregates of different mineralogies to the moisture induced strength degradation of the aggreg... Read More about Influence of aggregate absorption and diffusion properties on moisture damage in asphalt mixtures.

An investigation on using pre-treated tyre rubber as a replacement of synthetic polymers for bitumen modification (2015)
Journal Article
Subhy, A., Lo Presti, D., & Airey, G. (in press). An investigation on using pre-treated tyre rubber as a replacement of synthetic polymers for bitumen modification. Road Materials and Pavement Design, 16, https://doi.org/10.1080/14680629.2015.1030826

Rubberized bitumen obtained through a swelling process, has widely proven to be a successful technology for asphalt pavement applications and a solution to reduce the dismantling of tyre rubber on landfills. However, this technology presents two main... Read More about An investigation on using pre-treated tyre rubber as a replacement of synthetic polymers for bitumen modification.

Binder design of high RAP content hot and warm asphalt mixture wearing courses (2015)
Journal Article
Barco Carrión, A., Lo Presti, D., & Airey, G. (2015). Binder design of high RAP content hot and warm asphalt mixture wearing courses. Road Materials and Pavement Design, 16, 460-474. https://doi.org/10.1080/14680629.2015.1029707

Reclaimed Asphalt Pavement (RAP) has shown great potential for being used in the construction or maintenance of roads. However, RAP is usually downgraded to lower pavement layers and the percentage of RAP used in wearing courses is still moderate (≤3... Read More about Binder design of high RAP content hot and warm asphalt mixture wearing courses.

Discrete element modelling of creep of asphalt mixtures (2015)
Journal Article
Cai, W., McDowell, G. R., Airey, G., & de Bono, J. P. (in press). Discrete element modelling of creep of asphalt mixtures. Geomechanics and Geoengineering, 11(1), https://doi.org/10.1080/17486025.2015.1006689

Creep tests on asphalt mixtures have been undertaken under four stress levels in the laboratory while the Discrete Element Model (DEM) has been used to simulate the laboratory tests. A modified Burger’s model has been used to represent the time-depen... Read More about Discrete element modelling of creep of asphalt mixtures.

Moisture damage assessment using surface energy, bitumen stripping and the SATS moisture conditioning procedure (2015)
Journal Article
Grenfell, J., Apeagyei, A. K., & Airey, G. (in press). Moisture damage assessment using surface energy, bitumen stripping and the SATS moisture conditioning procedure. International Journal of Pavement Engineering, 16(5), https://doi.org/10.1080/10298436.2015.1007235

Durability is one of the most important properties of an asphalt mixture. A key factor affecting the durability of asphalt pavements is moisture damage. Moisture damage generally results in the loss of strength of the mixture due to two main mechanis... Read More about Moisture damage assessment using surface energy, bitumen stripping and the SATS moisture conditioning procedure.

Stiffness of cold asphalt mixtures with recycled aggregates from construction and demolition waste (2015)
Journal Article
Gómez-Meijide, B., Pérez, I., Airey, G., & Thom, N. (2015). Stiffness of cold asphalt mixtures with recycled aggregates from construction and demolition waste. Construction and Building Materials, 77, 168-178. https://doi.org/10.1016/j.conbuildmat.2014.12.045

The stiffness of cold asphalt mixtures (CAM) with 100% recycled construction and demolition waste aggregates (CDWA) was studied from three different points of view: the indirect tensile stiffness modulus (ITSM), the dynamic modulus at different tempe... Read More about Stiffness of cold asphalt mixtures with recycled aggregates from construction and demolition waste.