All Outputs (57)

State-of-the-art review on the integration of BIM with pavement management systems (2024)
Journal Article
Utami, R., Osorio-Sandoval, C., & Thom, N. (2024). State-of-the-art review on the integration of BIM with pavement management systems. Journal of Information Technology in Construction, 29, 810-825. https://doi.org/10.36680/j.itcon.2024.035

Pavement management systems require comprehensive data, including design and existing conditions. These data may be utilised to forecast conditions and determine the optimal timing for implementing maintenance measures to reduce expenses. On the othe... Read More about State-of-the-art review on the integration of BIM with pavement management systems.

Conceptual Framework for Integrating Building Information Modelling (BIM) with Pavement Management System (PMS) (2024)
Presentation / Conference Contribution
Utami, R., OSORIO SANDOVAL, C. A., & Thom, N. (2024, August). Conceptual Framework for Integrating Building Information Modelling (BIM) with Pavement Management System (PMS). Presented at ICCBE 2024: The 20th conference of the International Society for Computing in Civil and Building Engineering, Montreal, Canada

In developing countries, pavement management systems (PMS) face limitations such as insufficient data, budget constraints, and inadequate analysis tools. To address those limitations, simplified PMS are needed to increase efficiency and effectiveness... Read More about Conceptual Framework for Integrating Building Information Modelling (BIM) with Pavement Management System (PMS).

One-year results of the first road surface with the addition of sunflower oil porous capsules (2024)
Journal Article
Abedraba-Abdalla, M., Garcia-Hernández, A., Haughey, F., Thom, N., & Li, L. (2024). One-year results of the first road surface with the addition of sunflower oil porous capsules. Construction and Building Materials, 445, Article 137939. https://doi.org/10.1016/j.conbuildmat.2024.137939

This paper presents findings from the first surface course in the UK employing sunflower oil-filled porous capsules as a self-healing additive. The capsules, designed to mitigate ravelling, were tested on a road constructed at an asphalt plant and su... Read More about One-year results of the first road surface with the addition of sunflower oil porous capsules.

Particle loss mitigation in asphalt by the addition of polyethylene foam (2024)
Journal Article
Abedraba-Abdalla, M., Thom, N., Garcia-Hernández, A., & Li, L. (2024). Particle loss mitigation in asphalt by the addition of polyethylene foam. Construction and Building Materials, 438, 137208. https://doi.org/10.1016/j.conbuildmat.2024.137208

This paper evaluates the feasibility of using a cellular foam as a substitute for capsules containing rejuvenators to mitigate the ravelling of Stone Mastic Asphalt and enhance its durability. While encapsulated rejuvenators have been shown to effect... Read More about Particle loss mitigation in asphalt by the addition of polyethylene foam.

Roughness Prediction of Jointed Plain Concrete Pavement Using Physics Informed Neural Networks (2024)
Journal Article
Pasupunuri, S. K., Thom, N., & Li, L. (2024). Roughness Prediction of Jointed Plain Concrete Pavement Using Physics Informed Neural Networks. Transportation Research Record, 2678(11), 1733-1746. https://doi.org/10.1177/03611981241245991

The International Roughness Index is used to measure the road roughness in pavements, as pavement roughness deteriorates over time. Despite many attempts by researchers to predict roughness in concrete pavements, there are limitations, such as small... Read More about Roughness Prediction of Jointed Plain Concrete Pavement Using Physics Informed Neural Networks.

A Machine Learning based approach to predict road rutting considering uncertainty (2024)
Journal Article
Chen, K., Torbaghan, M. E., Thom, N., Garcia-Hernández, A., Faramarzi, A., & Chapman, D. (2024). A Machine Learning based approach to predict road rutting considering uncertainty. Case Studies in Construction Materials, 20, Article e03186. https://doi.org/10.1016/j.cscm.2024.e03186

Roads as vital public assets are the backbone for transportation systems and support constant societal development. Recently, data-driven technologies such as digital twins and especially machine learning have shown great potential to maintain the se... Read More about A Machine Learning based approach to predict road rutting considering uncertainty.

Predicting pavement performance using distress deterioration curves (2023)
Journal Article
Abed, A., Rahman, M., Thom, N., Hargreaves, D., Li, L., & Airey, G. (2024). Predicting pavement performance using distress deterioration curves. Road Materials and Pavement Design, 25(6), 1174-1190. https://doi.org/10.1080/14680629.2023.2238094

Highway Authorities in the UK use Surface Condition Assessment for the National Network of Roads (SCANNER) in assessing and managing their road networks. This survey vehicle utilises laser measurements to detect and quantify most of the distress on t... Read More about Predicting pavement performance using distress deterioration curves.

2D Mesoscale cracking simulation of partially saturated asphalt based on moisture diffusion and a cohesive zone model (2023)
Journal Article
Li, L., Wu, J., Thom, N., Hargreaves, D., Airey, G., Zhu, J., Abed, A., Rahman, M., & Zhang, Z. (2023). 2D Mesoscale cracking simulation of partially saturated asphalt based on moisture diffusion and a cohesive zone model. International Journal of Pavement Engineering, 24(1), Article 2242557. https://doi.org/10.1080/10298436.2023.2242557

The primary objective of this paper was to develop a combined model that incorporates moisture diffusion and a cohesive zone model, addressing anisotropic and loading-rate dependent cracking within partially saturated asphalt. Utilising X-ray CT scan... Read More about 2D Mesoscale cracking simulation of partially saturated asphalt based on moisture diffusion and a cohesive zone model.

Engineering characterization and environmental analysis of natural rubber latex modified asphalt mixture (2023)
Journal Article
Suwarto, F., Parry, T., Thom, N., Airey, G., Abed, A., Rahman, T., & Wititanapanit, J. (2023). Engineering characterization and environmental analysis of natural rubber latex modified asphalt mixture. Construction and Building Materials, 402, Article 132970. https://doi.org/10.1016/j.conbuildmat.2023.132970

Natural Rubber Latex (NRL) has attracted considerable interest as a resource for renewable paving materials due to its potential to lessen environmental impact. In order to gain a thorough understanding of the performance of NRL, this study evaluated... Read More about Engineering characterization and environmental analysis of natural rubber latex modified asphalt mixture.

Analysis and Prediction of Pothole Formation Rate Using Spatial Density Measurements and Pavement Condition Indicators (2023)
Journal Article
Abed, A., Rahman, M., Thom, N., Hargreaves, D., Li, L., & Airey, G. (2023). Analysis and Prediction of Pothole Formation Rate Using Spatial Density Measurements and Pavement Condition Indicators. Transportation Research Record, 2677(11), 651-664. https://doi.org/10.1177/03611981231166684

Potholes represent one of the dangerous distress types on roads. They form as a result of various factors, including water ingress, freeze–thaw, and pavement condition deterioration. In the UK, 1.7 million potholes were repaired in 2021; this critica... Read More about Analysis and Prediction of Pothole Formation Rate Using Spatial Density Measurements and Pavement Condition Indicators.

Improved Multi-layer Analysis of Pavement Response Using Neural Networks to Optimize Numerical Integration (2022)
Journal Article
Abed, A., Thom, N., Campos-Guereta, I., & Airey, G. (2024). Improved Multi-layer Analysis of Pavement Response Using Neural Networks to Optimize Numerical Integration. International Journal of Pavement Engineering, 17(3), 549-562. https://doi.org/10.1007/s42947-022-00255-x

This paper presents a new accurate method to compute the mechanical response of pavement structures using an Artificial Neural Network (ANN) model coupled with Multi-Layer Elastic Analysis (MLEA). The ANN model is used to improve the numerical integr... Read More about Improved Multi-layer Analysis of Pavement Response Using Neural Networks to Optimize Numerical Integration.

A Review of Numerical Models for Slab-Asphalt Track Railways (2022)
Journal Article
Atalan, M., Prendergast, L. J., Grizi, A., & Thom, N. (2022). A Review of Numerical Models for Slab-Asphalt Track Railways. Infrastructures, 7(4), Article 59. https://doi.org/10.3390/infrastructures7040059

Higher train speeds and heavier axle loads trigger elevated stresses and vibrations in the track, potentially increasing track deterioration rates and maintenance costs. Alternative track forms made of combinations of reinforced concrete and asphalt... Read More about A Review of Numerical Models for Slab-Asphalt Track Railways.

Characterisation of fatigue damage in asphalt mixtures using X-ray computed tomography (2022)
Journal Article
Chen, A., Airey, G., Thom, N., & Li, Y. (2023). Characterisation of fatigue damage in asphalt mixtures using X-ray computed tomography. Road Materials and Pavement Design, 24(3), 653-671. https://doi.org/10.1080/14680629.2022.2029756

The high-resolution X-ray CT was applied to investigate the fatigue damage evolution of asphalt mixtures. The detailed Xray CT images in the centre of the samples were used to characterise the fatigue cracking and air voids increase at different vert... Read More about Characterisation of fatigue damage in asphalt mixtures using X-ray computed tomography.

Modelling the stiffness development in asphalt concrete to obtain fatigue failure criteria (2021)
Journal Article
Chen, A., Airey, G. D., Thom, N., Litherland, J., & Adjetey Nii-Adjei, R. (2021). Modelling the stiffness development in asphalt concrete to obtain fatigue failure criteria. Construction and Building Materials, 306, Article 124837. https://doi.org/10.1016/j.conbuildmat.2021.124837

The study of fatigue is critical to good usability and durability of asphalt pavements. Inaccurate calculation of the fatigue failure criteria can cause incorrect evaluation of the fatigue performance, leading to inaccurate prediction of the pavement... Read More about Modelling the stiffness development in asphalt concrete to obtain fatigue failure criteria.

Stiffening Effect of Fillers Based on Rheology and Micromechanics Models (2021)
Journal Article
Rahim, A., Milad, A., Yusoff, N. I. M., Airey, G., & Thom, N. (2021). Stiffening Effect of Fillers Based on Rheology and Micromechanics Models. Applied Sciences, 11(14), Article 6521. https://doi.org/10.3390/app11146521

The aggregate in an asphalt mixture is coated with mastic consisting of bitumen (dilute phase) and filler (particulates phase). The interaction of bitumen and filler and packing of filler plays an important role in the properties of mastics. The micr... Read More about Stiffening Effect of Fillers Based on Rheology and Micromechanics Models.

Thermo-rheological analysis of WMA-additive modified binders (2020)
Journal Article
Abed, A., Thom, N., Lo Presti, D., & Airey, G. (2020). Thermo-rheological analysis of WMA-additive modified binders. Materials and Structures, 53(3), Article 52. https://doi.org/10.1617/s11527-020-01480-1

Thermo-rheological characteristics of unmodified and modified bitumen have significant impacts on the mechanical response of asphalt. This study investigates the impacts of an organic and a chemical Warm Mix Asphalt additive on bitumen thermo-rheolog... Read More about Thermo-rheological analysis of WMA-additive modified binders.

Warm mix asphalt (WMA) for rapid construction in airfield pavement (2020)
Journal Article
Rahman, T., Dawson, A., & Thom, N. (2020). Warm mix asphalt (WMA) for rapid construction in airfield pavement. Construction and Building Materials, 246, Article 118411. https://doi.org/10.1016/j.conbuildmat.2020.118411

© 2020 Elsevier Ltd Warm-mix asphalt (WMA) is commonly mixed and compacted 15°C to 30°C below that of conventional hot mix asphalt (HMA). The lower production temperature of WMA is expected to give an advantage of a lower cooling time of newly laid a... Read More about Warm mix asphalt (WMA) for rapid construction in airfield pavement.

Microstructure and mechanical properties of fibre reinforced asphalt mixtures (2020)
Journal Article
Mohammed, M., Parry, T., Thom, N., & Grenfell, J. (2020). Microstructure and mechanical properties of fibre reinforced asphalt mixtures. Construction and Building Materials, 240, Article 117932. https://doi.org/10.1016/j.conbuildmat.2019.117932

Conventional asphalt mixtures can perform satisfactorily in most flexible pavement and airfield applications. However, during recent years the trend has been towards traffic growth, severe climate conditions, and heavier loads. This allied to durabil... Read More about Microstructure and mechanical properties of fibre reinforced asphalt mixtures.

Data Compression Approach for Long-Term Monitoring of Pavement Structures (2019)
Journal Article
Manosalvas-Paredes, M., Lajnef, N., Chatti, K., Aono, K., Blanc, J., Thom, N., Airey, G., & Lo Presti, D. (2019). Data Compression Approach for Long-Term Monitoring of Pavement Structures. Infrastructures, 5, Article 1. https://doi.org/10.3390/infrastructures5010001

Pavement structures are designed to withstand continuous damage during their design life. Damage starts as soon as the pavement is open to traffic and increases with time. If maintenance activities are not considered in the initial design or consider... Read More about Data Compression Approach for Long-Term Monitoring of Pavement Structures.

Strategies for reduced cooling time of asphalt for airfield pavement overlay (2019)
Presentation / Conference Contribution
Rahman, T., Thom, N., & Dawson, A. (2019, July). Strategies for reduced cooling time of asphalt for airfield pavement overlay. Presented at 2019 International Airfield and Highway Pavements Conference, Chicago, Illinois, USA

Reducing the cooling period of newly laid asphalt overlays could help airport authorities to quickly open remediated pavements to traffic. This paper reviews four strategies for a reduced cooling period, prior to trafficking, of newly-placed asphalt... Read More about Strategies for reduced cooling time of asphalt for airfield pavement overlay.