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Micaelo, Rui, Nuno Azevedo, Jaime Ribeiro, and Maria Azevedo. "Discrete Element Modelling of Field Asphalt Compaction." 6th International Conference on Maintenance and Rehabilitation of Pavements and Technological Control. Torino, Italy: Ismarti, SHV &TRB, 2009.
Micaelo, Rui, José Neves, Rui Lopes, and Alexandra Jesus. "A Different Perspective on the Production and Application of Warm Mix Asphalt Under Unfavorable Temperature Conditions." Transportation and Geotechniques: Materials, Sustainability and Climate. Eds. Manik Barman, Musharraf Zaman, and Jia-Ruey Chang. Cham: Springer International Publishing, 2019. 20-32. Abstract

Warm mix asphalt (WMA) is produced by a variety of technologies at lower temperatures that enable to gain important environmental and social benefits and, in consequence, to contribute to a more sustainable transportation infrastructure. The producer usually defines the temperatures used in WMA production. However, some references suggest the increase of temperature in order to allow a longer time to transport or to compact in cases of unfavourable weather conditions, mainly under low temperatures. The objective of this paper is to analyse the feasibility of producing WMA at the same temperatures of hot mix asphalt (HMA) guaranteeing an adequate compaction, and final performance in service. The paper describes a laboratory study to investigate the properties of a WMA using different additives and varying the mixing and compaction temperatures. The effect of production temperatures on the performance of the WMA was evaluated through binder drainage (production phase), volumetric properties (compaction phase), and resistance to permanent deformation (service phase). The paper also presents a numerical study on the time available for paving WMA under unfavourable climatic conditions. Results demonstrated that it is possible to produce WMA at high temperatures without problems of binder drainage, during transport, and of performance in service if adequate compaction is achieved. In fact, the production temperatures influenced the compaction phase. However, it is possible to increase the temperature without negatively affecting the required volumetric properties. The rut depth of the permanent deformation test was mostly influenced by the air-voids of the compacted WMA and the binder. From the numerical study, it was concluded that the time available for in situ compaction increased substantially when WMA was paved at higher temperature. However, in cases of low air temperature and thin layer, the increase of temperature may not be sufficient to obtain the desired level of density or air-voids.

Biscaia, Hugo C., Rui Micaelo, João Teixeira, and Carlos Chastre. "Delamination process analysis of frp-to-parent material bonded joints with and without anchorage systems using the distinct element method." Composite Structures (2014). AbstractWebsite


Biscaia, Hugo, Rui Micaelo, Carlos Chastre, and João Cardoso. "Cyclic Loading Behaviour of Double Strap Bonded Joints with CFRP and Aluminium." Key Engineering Materials. 774 (2018): 36-41. AbstractWebsite

The adhesively bonded joints behaviour under cyclic loading is not yet well understood due to its inherent complexity. Numerical approaches appear, therefore, as the easiest way to simulate such mechanical behaviour. In this work, double strap bonded joints with Carbon Fibres Reinforced Polymers (CFRP) and aluminium are numerically simulated and subjected to a cyclic loading history. In the numerical simulation, the Distinct Element Method (DEM) is used and it is assumed cohesive bi-linear bond-slip models with local damage of the interface. The evaluation of the bonded joints under cyclic loading is made by comparing the results with those simulated with a monotonic loading.

Ferreira, Adelino, Rui Micaelo, and Ricardo Souza. "Cracking Models for Use in Pavement Maintenance Management." 7th RILEM International Conference on Cracking in Pavements. Springer Netherlands, 2012. 429-439. Abstract
Matos, P., R. Micaelo, and C. Duarte Comportamento do mastique betuminoso a temperaturas elevadas: influência do fíler e do betume. 7º Congresso Rodoviário Português. Lisboa, 2013.
Carl, C., P. Lopes, M. Sá da Costa, G. Canon Falla, S. Leischner, and R. Micaelo. "Comparative study of the effect of long-term ageing on the behaviour of bitumen and mastics with mineral fillers." Construction and Building Materials. 225 (2019): 76-89. AbstractWebsite

This study aims to evaluate the effect of mineral fillers on bitumen ageing. Two different bitumens and four mastics were investigated in the unaged and long-term aged states, based on different properties (consistency, rheology, fatigue resistance and ductility). Mastics stiffened less due to ageing treatment than bitumens, especially with granite filler. However, the results of the performance tests were not definitive regarding the effect of the filler. Aged bitumen showed greater fatigue resistance and higher specific energy of ductile fracture than unaged bitumen, whereas the mastics showed minor variations in the specific energy of ductile fracture with ageing treatment, which is indicative of less ageing, but the fatigue resistance decreased significantly in mastics with one of the bitumens.

Micaelo, Rui, André Santos, and Cátia Duarte Compaction and mixing temperatures of asphalt mixtures with modified bitumen. 5th Congress Eurasphalt & Eurobitume 2012. Istanbul, Turkey, 2012.
Matos, Pedro, Rui Micaelo, and Cátia Duarte Bituminous mastic behaviour at mixing and paving temperatures: filler and bitumen influence analysis. 5th EATA Conference. Braunschweig, Germany, 2013.
Micaelo, R., J. Neves, Mauro Antunes, and D. Aelenei. "Avaliação experimental das propriedades térmicas de misturas betuminosas." 2º Congresso de Ensaios e Experimentação em Engenharia Civil. Porto 2019. Abstract


Carl, C., P. Lopes, M. Sá da Costa, G. Canon Falla, S. Leischner, and R. Micaelo. "Avaliação do efeito do filer no envelhecimento do betume." 9º Congresso Rodoviário Português. Lisboa, Portugal 2019. Abstract


Paciência, Edivaldo, R. Micaelo, and A. C. Freire. "Avaliação de métodos de ensaio para estudo de misturas betuminosas com agentes encapsulados." 9º Congresso Rodoviário Português. Lisboa, Portugal 2019. Abstract


Micaelo, Rui, Jaime Ribeiro, Maria Azevedo, and Nuno Azevedo. "Asphalt Mixtures Compaction study: Field Tests and Numerical Modelling." 16th IRF – World road Meeting. Lisbon, Portugal: IRF, 2010.
Micaelo, Rui, Jaime Ribeiro, Maria Azevedo, and Nuno Azevedo. "Asphalt compaction study: micromechanical modelling of a simplified lab compaction procedure." Road Materials and Pavement Design. 12.3 (2011): 461-491.Website
Micaelo, Rui, André Soares, and Adelino Ferreira. "Aquaplaning risk assessment in Portuguese road design guide." Proceedings of the ICE - Transport . 168.4 (2015): 300-311. AbstractWebsite


Simões, F., F. Lopes, A. Ferreira, and R. Micaelo Aplicação a Portugal do novo método de dimensionamento de pavimentos rodoviários da AASHTO. 7º Congresso Rodoviário Português. Lisboa, 2013.
Costa, Gonçalo, Rui Micaelo, and Adelino Ferreira Análise dos critérios de aceitação/rejeição do caderno de encargos tipo obra para pavimentação. 17.º Congreso Ibero-Latinoamericano del Asfalto. Antigua, Guatemala, 2013.