Sustainable Assessment of Concrete Repairs through Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA)

Renne, Neel; Maeijer, Patricia Kara De; Craeye, Bart; Buyle, Matthias; Audenaert, Amaryllis

doi:10.3390/infrastructures7100128

Cited by 16 publications

(7 citation statements)

References 84 publications

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“…Because of increasing rock bolt performances, some tolerable and extra costs can be economical to be paid. Choosing right materials supplies economical solutions by eliminating the need for repair costs [39][40][41]. Economy and safety should be considered together in engineering designs.…”

Section: Discussionmentioning

confidence: 99%

Investigation of New Energy Absorbing Mechanisms Used to Fix Rock Bolt Plates

Komurlu

2023

Period. Polytech. Civil Eng.

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In this study, different plate fixing designs were tested in order to improve rock bolting performances. Instead of commonly used steel nuts, different plate fixing designs were investigated by both laboratory and site studies. In addition, the usability of nuts and energy absorbers made of the polyamide type engineering polymer was investigated to assess whether they are advantageous for the aim of supplying high-energy absorbing features. In this experimental study, deformation-controlled load tests were carried out to evaluate the bearing and energy absorption capacities of totally eight different groups of specimens. According to the findings from this study, use of the polyamide material with steel nuts as an energy absorber material, rather than using instead of steel nuts supplies good results. As another outcome, it has been determined that use of proper washers between steel nuts and polyamide absorbers can significantly improve the energy absorption performances. It has been evaluated that the energy absorption capacity of the bolt plates can be economically increased up to 10 times by using suitable polyamide energy absorbers placed between the plate and steel nut parts. It was concluded that the polyamides can be used to remarkably improve the rock bolting performances especially in the rock masses where the high energy absorption capacity property is needed, like those with rock bursting, squeezing and swelling problems.

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Section: Discussionmentioning

confidence: 99%

Investigation of New Energy Absorbing Mechanisms Used to Fix Rock Bolt Plates

Komurlu

2023

Period. Polytech. Civil Eng.

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“…In line with this idea, the adequate maintenance of infrastructures is essential to avoid unnecessary expenses and environmental impacts associated with the construction of new assets. Nevertheless, in recent years, there has been a notable emphasis among academics on evaluating the consequences linked to infrastructure maintenance [2,3]. This is due to the recognition that these effects might surpass those related to infrastructure creation if the design is inadequate.…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of a Coastal Concrete Bridge Aided by Non-Destructive Damage Detection Methods

Hadizadeh-Bazaz,

Navarro,

Yepes

2023

JMSE

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Recently, using economic damage identification techniques to ensure the safety of bridges has become essential. But investigating the performance of those techniques for various conditions and environments and, in addition, a life cycle assessment (LCA) through these methods depending on the situation and during the life of a structure could help specialists and engineers in this field. In these regards, analyzing the implementation of a technique for the restoration and maintenance stages of costly structures such as bridges can illustrate the effect of each damage detection method on the LCA. This research assessed non-destructive abilities and a dynamic approach to predict the amount and location of damages in the LCA. For this purpose, the power spectral density (PSD) technique’s performance by different approaches in identifying corrosion damages for a coastal bridge and the effectiveness of using this technique on reducing the environmental impact compared with a conventional method were evaluated. The results demonstrate a reduction of the environmental impacts by approximately 23% when using the PSD during the bridge’s service life. In conclusion, the PSD approach does well in anticipating the damage quantity and location on a coastal bridge, which reduces the environmental impacts during the repair and maintenance.

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“…The structural deficiencies in civil engineering applications raise questions about the design and, moreover, about the safety of structures. In most cases, structural strengthening and rehabilitation are more profitable, economically and socially, than demolition and rebuilding [1,2]. Traditional strengthening methods, such as concrete or steel jacketing have been replaced by fiber confining, an effective method to improve seismic performance and, thus, axial strength, and the deformation capacity of existing reinforced-concrete structures.…”

Section: Introductionmentioning

confidence: 99%

Fiber Reinforced Polymer (FRP) Confined Circular Concrete Columns: An Experimental Overview

Valasaki

Papakonstantinou

2023

Buildings

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Fiber-reinforced polymers (FRPs) are widely used as composite materials in civil engineering applications to rehabilitate or strengthen reinforced-concrete structural elements. The purpose of this study was to compile an extensive and up-to-date experimental database based on the compressive tests conducted on circular confined concrete structural elements using FRP composite materials. Strict criteria were implemented during the collection of the experimental data to minimize uncertainty and maximize uniformity. In order to compare the results, the collected data were divided into two categories based on the type of confinement, namely FRP wrapped and FRP tube encased. A detailed database of 1470 experimental test results on FRP-confined concrete cylindrical specimens demonstrated the specimens’ geometry, the jacketing materials’ physical and mechanical properties, and the effect of the confinement on the axial compressive strength and strain. The analysis of the database led to important observations on the parameters that influence FRP-confined concrete’s behavior. The unconfined concrete strength seems to be inversely related to the confinement efficiency. The confinement efficiency is quite limited in high-strength concrete specimens. Carbon fibers tend to provide greater confinement effectiveness, while the FRP axial rigidity was found to contribute significantly to the effect of confinement. Glass and aramid fibers seem to perform equally well, regardless of the confinement method. An interesting finding is that while FRP-wrapped specimens perform similarly to tube-encased specimens in terms of increases in compressive strength, the latter are associated with larger increases in ultimate axial strains.

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Sustainable Assessment of Concrete Repairs through Life Cycle Assessment (LCA) and Life Cycle Cost Analysis (LCCA)

Cited by 16 publications

References 84 publications

Investigation of New Energy Absorbing Mechanisms Used to Fix Rock Bolt Plates

Investigation of New Energy Absorbing Mechanisms Used to Fix Rock Bolt Plates

Life Cycle Assessment of a Coastal Concrete Bridge Aided by Non-Destructive Damage Detection Methods

Fiber Reinforced Polymer (FRP) Confined Circular Concrete Columns: An Experimental Overview

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