Publications associées à Service life

On the possibility of extending the service life of winter roads using renewable energy sources

It is hard to overestimate the role of winter roads in the land logistics of the northern regions. In recent years, climate change has not only significantly reduced the service life of winter roads, but also made them less predictable. This forces transpo ...

2023

Does carbon footprint reduction impair mechanical properties and service life of concrete?

Karen Scrivener, Diana Londoño Zuluaga

The aim of this study is to evaluate how much the changes in the concrete mix design, which enable carbon footprint reduction, are impacting mechanical properties and predicted service life of concrete structure. The starting point of this study was concre ...

SPRINGER2023

Ontology for Strategies and Predictive Maintenance models

Dimitrios Kyritsis, Gökan May, Sangje Cho, Marlène Hildebrand-Ehrhardt

As of today, to cope with traditional maintenance policies such as reactive and preventive maintenance, the manufacturing companies need the deployment of adaptive and responsive maintenance strategies. Meanwhile, the advent of Industry 4.0 leads the maint ...

ELSEVIER2020

Assessment of the breakthrough of micropollutants in full-scale granular activated carbon adsorbers by rapid small-scale column tests and a novel pilot-scale sampling approach

Urs von Gunten, Juliane Hollender

This study aimed to compare three approaches for predicting the service life of full-scale GAC adsorbers for the removal of micropollutants. The approaches included (i) rapid small-scale column tests (RSSCTs), (ii) two pilot-scale sampling approaches, and ...

ROYAL SOC CHEMISTRY2020

International Perspective on UHPC in Bridge Engineering

Eugen Brühwiler

Ultrahigh-performance concrete (UHPC) offers significant potential to address a variety of needs in bridge design, construction, and performance enhancement. Bridge owners have shown willingness to embrace novel solutions that could address specific challe ...

ASCE-AMER SOC CIVIL ENGINEERS2020

Design of Load-Bearing Systems for Open-Ended Downstream Reuse

Corentin Jean Dominique Fivet

This paper discusses the design of load-bearing systems for buildings with regard to their current lack of open-ended reusability. The reason for dismantling load-bearing systems today tends to be less related to material degradation than to a loss of func ...

2019

Predictive Maintenance Platform Based on Integrated Strategies for Increased Operating Life of Factories

Dimitrios Kyritsis, Gökan May, Sangje Cho

Process output and profitability of the operations are mainly determined by how the equipment is being used. The production planning, operations and machine maintenance influence the overall equipment effectiveness (OEE) of the machinery, resulting in more ...

SPRINGER-VERLAG BERLIN2018

Addressing the need to monitor concrete fatigue with Non Destructive Testing: results of Infrastar European project

Eugen Brühwiler, Imane Bayane, Antoine Bassil, Xiao Wang

Fatigue is one of the most prevalent issues, which directly influences the service life expectancy of concrete structures. Fatigue has been investigated for years for steel structures. However, recent findings suggest that concrete structures may also be s ...

2018

A GIS based approach for analysing geological and operation conditions influence on road tunnels degradation

Federica Sandrone, Vincent Labiouse

Adopting effective maintenance strategies for transportation infrastructures requires good prediction of their long-term behaviour. For planning interventions without affecting the entire network’s capacity, tunnels in particular require a good overview of ...

Elsevier2017

Post-tensioned glass beams

Jagoda Cupac

Over the last few decades, the application of glass in building construction has extended from small four-side supported windowpanes to areas traditionally reserved for other materials, such as roofs, floors, staircases and full building envelopes. Glass i ...

EPFL2017

Traffic-Based Condition Assessment and Fatigue-Life Predictions for a Highway Bridge

Ian Smith, Alain Nussbaumer, Sai Ganesh Sarvotham Pai

Most civil infrastructure today was built during the second half of 20th century and is nearing the end of its service life. With increasing infrastructure demand that cannot be met with current resources for new supply, replacement of all aging infrastruc ...

Amer Soc Civil Engineers2017

Studies of Sensor Data Interpretation for Asset Management of the Built Environment

Ian Smith

Sensing in the built environment has the potential to reduce asset management expenditure and contribute to extending useful service life. In the built environment, measurements are usually performed indirectly; effects are measured remote from their cause ...

2016

Alkali-silica reaction: Current understanding of the reaction mechanisms and the knowledge gaps

Cyrille Dunant

Alkali-silica reaction (ASR) is a major concrete durability problem, resulting in significant maintenance and reconstruction costs to concrete infrastructures all over the world. Despite decades of study, the underlying chemical and physical reaction mecha ...

Pergamon-Elsevier Science Ltd2015

Evaluating seismic retrofitting efficiency through ambient vibration tests and analytical models

Ian Smith, Pierino Lestuzzi, Yves Sylvain Gilles Reuland, Angelo Garofano

Economic and environmental imperatives lead to an ever growing need to extend the service life of the existing building stock without putting the users at risk. In zones prone to moderate seismic hazard, many buildings were built without considering seismi ...

2015

Static and fatigue strength of RC slabs under concentrated loads near linear supports

Aurelio Muttoni, Francisco Manuel Maciel Natário

RC slabs without shear reinforcement subjected to c oncentrated loads near lin ear supports are typical cases of deck slabs of bridges, transfer slabs or pile caps. Such elements are often designed or as sessed in shear with code provisions calibrated on ...

Proc. of the 10th fib International PhD Symposium in Civil Engineering, Quebec2014

Bridge "examineering" or how monitoring and UHPFRC improve the performance of structures

Eugen Brühwiler

Examination engineering (short: "Examineering") of existing bridges comprises accurate determination of structural behavior and targeted use of advanced materials for improvement of structural behavior with the ultimate goal of limiting construction interv ...

Crc Press-Taylor & Francis Group2014

Fatigue Life Prediction of Adhesively-Bonded Fiber-Reinforced Polymer Structural Joints under Spectrum Loading Patterns

Roohollah Sarfaraz Khabbaz

New load-bearing structures made of fiber-reinforced polymer (FRP) composites comprise adhesively-bonded joints, which are components vulnerable to fatigue failure. These structural components are frequently subjected to complex cyclic loading histories ...

EPFL2012

Deformation and Damage in Lead-free Solder Joints : Microstructure-based Modeling and Experimental Characterization

Milad Maleki

For environmental reasons, lead has been banned from microelectronic solder materials since the adoption of the RoHS legislation in 2006. A large number of investigations have lead to the development of new lead-free solder materials like the SnAgCu alloy ...

EPFL2012

A monitoring system for determination of real deck slab behaviour in prestressed box girder bridges

Eugen Brühwiler, Mark Anthony Treacy

Due to ever increasing traffic demands the fatigue safety and service life of the bridges of a railway line in Brazil need to be examined. Conventional assessment methods using load models and approaches as suggested in codes lead to conservative results r ...

CRC Press/Balkema2012

Specification and site control of the permeability of the cover concrete: the Swiss approach

Emmanuel Denarié

It is recognized that most damage to reinforced concrete structures is caused by insufficient durability rather than by low strength. In most cases, the quality and thickness of the cover concrete (covercrete) determine the service life of the structure. S ...

RILEM Publications2011