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Estudo da sensibilidade à água de misturas betuminosas

Batista, F. A.; Antunes, M. L.; Teixeira, A.; Ferreira, C.; Guimarães, C.; Gomes, V.; Gomes, L. (2011-11)

Em Portugal, os valores de referência existentes para a sensibilidade à água de misturas betuminosas foram estabelecidos de acordo com a norma de ensaio militar americana MIL-STD–620A – método A. No entanto, no atual ...

Camadas de desgaste para a redução do ruído de tráfego - Avaliação do ruído em pavimentos em serviço

Antunes, M. L.; Coutinho, A. S.; Freitas, E.; Paulo, J. (LNEC, 2011-12)

Aplicação de agregados reciclados em estradas

Freire, A. C.; Neves, J.; Roque, A. J.; Martins, I. M.; Antunes, M. L.; Ruas Faria, G. (Ambinews - Revista de Informação de Ambiente, 2011)

Non destructive tests for railway infrastructure stiffness evaluation

Fontul, S.; Fortunato, E.; Chiara, F. (Civil-Comp Press, 2011-09-06)

An important part for a proper railway maintenance policy is the evaluation of the condition of an existing railway substructure, in order to detect the deterioration causes. Recently, the use of non destructive techniques ...

Rockfill and soil-rock mixtures in road embankments - a case study

Fortunato, E.; Caldeira, L. (IOS Press, 2011-09)

The development of transportation infrastructures has led to the need of huge earthmoving volumes, resulting in high embank- ments. In the construction of these embankments, rockfill and soil-rock mixture materials have ...

Sustainable application of construction and demolition

Freire, A. C.; Neves, J.; Roque, A. J.; Martins, I. M.; Antunes, M. L.; Ruas Faria, G. (2011-09)

The use of Construction and Demolition Recycled Materials (C&DRM) in road pavements is envisaged as a solution with environmental and economic benefits. Their application as unbound granular materials in pavement layers ...

Suprema – Aplicação sustentável de resíduos de construção e demolição (RCD) em infra-estruturas rodoviárias - Relatório de progresso do projecto PTDC/ECM/100931/2008 – Ano 1

Freire, A. C.; Neves, J.; Roque, A. J.; Martins, I. M.; Antunes, M. L.; Ruas Faria, G. (LNEC, 2011-06)

A case study in construction optimisation for sub-ballast layer

Paixão, A.; Fortunato, E.; Fontul, S. (Engineering Technics Press, 2011-06)

The performance requirements of modern railway tracks demand a proper design in order to meet safety and passenger comfort standards, taking into account the optimization of the infrastructure life cycle. The sub-ballast ...

Bituminous mixtures application in railway sub-ballast layer

Chiara, F.; Fontul, S.; Paixão, A.; Andrea, A. (2011-06-01)

The increasing of loads and traffic speed of the railways requires a better infrastructure, in order to enable the operation in optimal condition and less traffic interruptions due to maintenance actions. At the same time, ...

Estudos relativos a técnicas de conservação e reabilitação de pavimentos - Acção COST 343 – Reduction in road closures by improved maintenance procedures

Antunes, M. L. (LNEC, 2010-11)

Projecto, construção e reabilitação de pavimentos com misturas betuminosas - Relatório do curso realizado em Cabo Verde de 12 a 15 de Julho de 2010

Batista, F. A. (LNEC, 2010-07)

Analysis of the Properties of Recycled Aggregates for Unbound Granular Asphalt Pavement Layers

Freire, A. C. (2010-08-06)

The main purpose of this paper is to analyse the most important properties of recycled aggregates from construction and demolition waste (CDW) used in road construction and maintenance, especially in unbound base and ...

Improvements of Neural Networks Application for Backcalculation

Martins da Cunha, D.; Fontul, S.; Lopes, M. G. (© Universidade do Minho – Escola de Engenharia Departamento de Engenharia Civil, Campus de Azurém, P-4800-058 Guimarães, Portugal, 2010-08)

Road pavements require maintenance in order to provide good service levels during their life period. Because of the significant costs of this operation, the timing of each maintenance intervention should be carefully ...

Characterization and Design Criteria for Recycled Warm Mix in Plant -Case Study

Almeida, M. D.; Castro Gomes, J. P.; Antunes, M. L. (16th World Road Meeting, 2010-05)

Half warm mix asphalt recycling (HWMR) is a promising new technique for reclaimed asphalt pavement (RAP) recycling under development in Portugal. The technique is based in mix recycling RAP at low temperatures, between ...

Assessment of the traffic

Freitas, E.; Antunes, M. L. (16th World Road Meeting, 2010-05)

Traffic noise is an important branch of the environment pollution which deeply affects the population and for that reason it has been included in the set of pavement performance indicators. Nevertheless, the knowledge ...

Construção, conservação e reabilitação de estradas de baixo custo - Relatório do curso realizado em Maputo 12 a 16 de Abril de 2010

Antunes, M. L.; Fortunato, E. (LNEC, 2010-08)

Sharing knowledge and field pratice for recycling road and road related materials: the Direct-Mat project

Antunes, M. L.; Descantes, Y.; Arm, M.; Pihl, K.; André, J.; Mollenhauer, K.; de Bock, L.; Gobert, J. (16th World Road Meeting, 2010-05)

In order to facilitate the share of national experiences on dismantling and recycling of road and road related materials, a three-year European project was initiated in January 2009, within the UE 7th Framework Programme ...

Assessment of Fatigue Resistance and Aging of Asphalt Mixtures in Portugal

Dias, J. P.; Batista, F. A.; Lopes, M. G. (2010-08)

In Portugal, the stiffness modulus and the fatigue resistance of asphalt mixtures are generally assessed through four-point bending tests on prismatic shaped specimens (4PB) based on European standard EN 12697-24-Annex D. ...

Optimization of high-speed railway track using bituminous sub-ballast - Progress report of project PDTC/ECM/70571/2006-2009

Santos, A. F.; Fontul, S.; Fortunato, E.; Freire, A. C. (LNEC, 2010-03)

CHARACTERIZATION OF THE FOULED BALLAST LAYER IN THE SUBSTRUCTURE OF A 19TH CENTURY RAILWAY TRACK UNDER RENEWAL

Fortunato, E. (The Japanese Geotechnical Society, 2010)

The purpose of these field and lab studies undertaken during rehabilitation work being done on an ancient railway line was to characterize a layer of ballast fouled with soil found in the track substructure. The field ...

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