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Thermal properties of hydrated lime-modified asphalt concrete and modelling evaluation for their effect on the constructed pavements in service (2022)
Journal Article
Al Ashaibi, A., Wang, Y., Albayati, A., Byzyka, J., Scholz, M., & Weekes, L. (2022). Thermal properties of hydrated lime-modified asphalt concrete and modelling evaluation for their effect on the constructed pavements in service. Sustainability, 14(13),

Flexible pavements are subjected to three main distress types: fatigue crack, thermal crack, and permanent deformation. Under severe climate conditions, thermal cracking particularly contributes largely to a considerable scale of premature deteriora... Read More about Thermal properties of hydrated lime-modified asphalt concrete and modelling evaluation for their effect on the constructed pavements in service.

Performance of magnetite-based stone mastic asphalt (SMA) as a superior surface course material (2022)
Journal Article
Al-Kheetan, M., Azim, M., Byzyka, J., Ghaffar, S., & Rahman, M. (2022). Performance of magnetite-based stone mastic asphalt (SMA) as a superior surface course material. Construction and Building Materials, 322, 126463. https://doi.org/10.1016/j.conbuildmat.2022.126463

A new line of research is reported in this study where magnetite is used as a partial replacement of traditional aggregates in stone mastic asphalt (SMA) mixtures. The objective is to enhance the functional and mechanical properties of SMA while taki... Read More about Performance of magnetite-based stone mastic asphalt (SMA) as a superior surface course material.

A laboratory investigation on thermal properties of virgin and aged asphalt mixture (2021)
Journal Article
Byzyka, J., Rahman, M., & Chamberlain, D. (2021). A laboratory investigation on thermal properties of virgin and aged asphalt mixture. Construction and Building Materials, 305, 124757. https://doi.org/10.1016/j.conbuildmat.2021.124757

In this paper, the thermal properties of three dense graded asphalt mixtures, 20 mm DBM, 13 AC 14, and AC 6, are presented. Density and air voids of the compacted specimens are also shown. Thermal conductivity was measured in the laboratory for non-a... Read More about A laboratory investigation on thermal properties of virgin and aged asphalt mixture.

Microstructural, mechanical and physical assessment of Portland Cement Concrete pavement modified by sodium acetate under various curing conditions (2021)
Journal Article
Al-Kheetan, M., Ghaffar, S., Awad, S., Chougan, M., Byzyka, J., & Rahman, M. (2021). Microstructural, mechanical and physical assessment of Portland Cement Concrete pavement modified by sodium acetate under various curing conditions. Infrastructures, 6(8), e113. https://doi.org/10.3390/infrastructures6080113

Portland Cement Concrete (PCC) pavement was studied with incorporation of an environmentally friendly eco-additive, sodium acetate (C2H3NaO2). This additive was added to PCC pavement in three different percentages of 2%, 4% and 6% of binder weight. F... Read More about Microstructural, mechanical and physical assessment of Portland Cement Concrete pavement modified by sodium acetate under various curing conditions.

Sustainable valorisation of silane-treated waste glass powder in concrete pavement (2021)
Journal Article
Al-Kheetan, M., Byzyka, J., & Ghaffar, S. (2021). Sustainable valorisation of silane-treated waste glass powder in concrete pavement. Sustainability, 13(9), 4949. https://doi.org/10.3390/su13094949

This research presents new insights into the utilisation of waste glass powder in concrete pavements. Two different types of glass powder were used as a partial replacement for sand: 10% neat glass powder (untreated) and 10% silane-treated glass powd... Read More about Sustainable valorisation of silane-treated waste glass powder in concrete pavement.

Thermal analysis of hot mix asphalt pothole repair by finite element method (2020)
Journal Article
Byzyka, J., Rahman, M., & Chamberlain, D. A. (2020). Thermal analysis of hot mix asphalt pothole repair by finite element method. Journal of transportation engineering. Part B. Pavements, 146(3), 04020029. https://doi.org/10.1061/JPEODX.0000156

Traditional repair methods tend to suffer from inadequate net interface heating because the combined effect of placing hot fill mix in a cold, old pavement leads to inadequate net temperature levels. The outcome of this is low durability and limited... Read More about Thermal analysis of hot mix asphalt pothole repair by finite element method.

Performance enhancement of asphalt patch repair with innovative heating strategy (2019)
Journal Article
Byzyka, J., Rahman, M., Chamberlain, D., & Malieva, M. (2019). Performance enhancement of asphalt patch repair with innovative heating strategy. Proceedings of the ICE - Transport, 175(5), 300-309. https://doi.org/10.1680/jtran.19.00007

The advantage of controlled preheating of excavated asphalt surface prior to hot mix asphalt patch repair, referred as “dynamic repair”, is presented in this paper. The heating effects are compared against traditional repair, referred as “static repa... Read More about Performance enhancement of asphalt patch repair with innovative heating strategy.

Experimental investigation of temperature distribution in non - heated and pre - heated hot mix asphalt patch repair (2019)
Presentation / Conference
Byzyka, J., Rahman, M., & Chamberlain, D. (2019, June). Experimental investigation of temperature distribution in non - heated and pre - heated hot mix asphalt patch repair. Presented at 7th International Conference on Bituminous Mixtures and Pavements (7th ICONFBMP), Thessaloniki, Greece

The study focuses on the issue of hot mix asphalt patch repairs, the performance of which is greatly reduced by repair edge disintegration. This is caused by low interface temperatures during the repair operation which result in poor bonding between... Read More about Experimental investigation of temperature distribution in non - heated and pre - heated hot mix asphalt patch repair.

Thermal influence in the performance of static and dynamic hot mix asphalt pothole repairs (2019)
Presentation / Conference
Byzyka, J., Rahman, M., & Chamberlain, D. A. (2019, January). Thermal influence in the performance of static and dynamic hot mix asphalt pothole repairs. Presented at 2019 Transportation Research Board Annual Meeting, Washington, D.C

The advantage of controlled preheating of excavated asphalt surface prior to hot mix asphalt patch repair, referred as “dynamic repair”, is presented in this paper. The heating effects are compared against traditional hot mix repair, referred as “sta... Read More about Thermal influence in the performance of static and dynamic hot mix asphalt pothole repairs.

An improved interface temperature distribution in shallow hot mix asphalt patch repair using dynamic heating (2018)
Journal Article
Byzyka, J., Rahman, M., & Chamberlain, D. A. (2020). An improved interface temperature distribution in shallow hot mix asphalt patch repair using dynamic heating. International Journal of Pavement Engineering, 21(13), 1617-1625. https://doi.org/10.1080/10298436.2018.1559315

This study focuses on the issue of hot mix asphalt patch repairs, the performance of which is greatly reduced by repair edge disintegration. This is caused by low interface temperatures which result in poor repair bonding between fill material and ho... Read More about An improved interface temperature distribution in shallow hot mix asphalt patch repair using dynamic heating.

An innovative asphalt patch repair pre–heating method using dynamic heating (2018)
Journal Article
Byzyka, J., Rahman, M., & Chamberlain, D. A. (2018). An innovative asphalt patch repair pre–heating method using dynamic heating. Construction and Building Materials, 188, 178-197. https://doi.org/10.1016/j.conbuildmat.2018.08.086

In hot mix asphalt patch repair, inadequate temperature at the interfaces is one of the influencing factors for inferior compaction and poor interface bonding. To enhance repair performance, a precisely controlled infrared pre-heating method for patc... Read More about An innovative asphalt patch repair pre–heating method using dynamic heating.

Development of advanced temperature distribution model in hot-mix asphalt patch repair (2017)
Journal Article
Byzyka, J., Chamberlain, D., & Rahman, M. (2017). Development of advanced temperature distribution model in hot-mix asphalt patch repair. Proceedings of the ICE - Transport, 172(4), 199-209. https://doi.org/10.1680/jtran.17.00022

The performance of hot-mix asphalt patch repair is greatly reduced due to inferior compaction at the interface. It is known that the faster loss of temperature at the interface is one of the primary reasons for inferior compaction. A novel controlled... Read More about Development of advanced temperature distribution model in hot-mix asphalt patch repair.

Thermal segregation of asphalt material in road repair (2017)
Journal Article
Byzyka, J., Rahman, M., & Chamberlain, D. (2017). Thermal segregation of asphalt material in road repair. Journal of Traffic and Transportation Engineering, 4(4), 360-371. https://doi.org/10.1016/j.jtte.2017.05.008

This paper presents results from a field study of asphaltic pavement patching operations performed by three different contractors working in a total of ten sites. It forms part of an ongoing research programme towards improving the performance of pot... Read More about Thermal segregation of asphalt material in road repair.

A three-dimensional finite element analysis of temperature distribution in hot mix asphalt pothole repairs (2017)
Presentation / Conference
Byzyka, J., Rahman, M., & Chamberlain, D. (2017, June). A three-dimensional finite element analysis of temperature distribution in hot mix asphalt pothole repairs. Presented at BCRRA 2017 - Tenth International Conference on the Bearing Capacity of Roads, Railways and Airfields, Athens, Greece

The reported research focuses on the problematic lack of durability in executedpotholerepairs, much of which arises from inadequate heating of the host pavement during the repair process. A three-dimensional finite-element analysis... Read More about A three-dimensional finite element analysis of temperature distribution in hot mix asphalt pothole repairs.

Thermal segregation of asphalt material in road repair
Presentation / Conference
Byzyka, J., Rahman, M., & Chamberlain, D. Thermal segregation of asphalt material in road repair. Presented at 8th International Conference on Maintenance and Rehabilitation of Pavements (MAIREPAV-8)

This paper presents results from a field study of asphaltic pavement patching operations performed by three different contractors working in total of ten sites. Thermal imaging technology was used to record temperatures of the patching materia... Read More about Thermal segregation of asphalt material in road repair.