A mechanistic perspective for airfield pavements evaluation focusing on the asphalt layers’ behaviour

Gkyrtis, Konstantinos; Armeni, Angeliki; Loizos, Andreas

doi:10.1080/10298436.2021.1995733

Cited by 9 publications

(5 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is rather significant, since the structural integrity of airfield pavements guarantees their role as core parts of the critical transporta-tion network. Structurally sound airfield pavements can increase interconnections between regional airports, boost tourist flows and even serve emergency societal needs at periods of crisis, including for example the management of migration flows [8].…”

Section: Discussion Pointsmentioning

confidence: 99%

“…An illustration of the survey scheme is given in Figure 8. The FWD load was set to 100 kN, which was selected according to previous experience [8,14] in order to ensure that the concrete pavement will exhibit appropriate responses under the FWD loading. The utilized FWD sensor array is given in Table 1.…”

Section: Nondestructive Data Collectionmentioning

confidence: 99%

“…The Falling Weight Deflectometer (FWD) [6] is the most indicative NDT system for pavement evaluation. Following its efficiency for highway pavement assessment [6,7], the use of FWD is a well-structured method and constitutes the standard practice approach in airfields too [8][9][10][11][12][13][14]. Deflectometric tests are usually taken at various locations across a concrete slab, including its center, edges and corners.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structural Performance Assessment of Airfield Concrete Pavements Based on Field and Laboratory Data

et al. 2021

Self Cite

View full text Add to dashboard Cite

Maintenance interventions and rehabilitation actions in airfield pavements are time-consuming and adversely affect pavements’ serviceability (i.e., airport closures), with a profound impact on the airport economics. Once a pavement is constructed, a robust asset management prerequisites systematic and accurate knowledge of pavement condition throughout its service life. Evaluating a pavement’s structural capacity in the field involves the integration of multiple Non-Destructive Testing (NDT) systems, with the Falling Weight Deflectometer (FWD) being the most indicative NDT system for pavement evaluation. The purpose of the present study is to develop a methodology for the assessment of airfield concrete pavements. A new and non-trafficked Jointed Plain Concrete Pavement (JPCP), facing early-life cracks shortly after a runway’s expansion activities, was utilized for the investigation. Multiple types of data collected in the field, including deflections, load transfer efficiency at joints and cracks, concrete thickness through coring as well as data retrieved in the laboratory (concrete’s flexural strength), helped to define the pavement’s performance and assess its damage potential. Overall, the integration of such data can provide the related airport authorities the necessary information in order to make a rational asset management and enhance the efficiency of airfield infrastructures. The methodology is applicable for both new and in-service pavements.

show abstract

Section: Discussion Pointsmentioning

confidence: 99%

Section: Nondestructive Data Collectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structural Performance Assessment of Airfield Concrete Pavements Based on Field and Laboratory Data

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Indeed, the asphalt layers in the flexible pavements show both elastic and viscous features. At high temperatures, the viscoelastic behavior dominates, and the pavement damage for airport pavements can be even double (e.g., [20,21]), with a profound impact on the decision-making processes. At low temperatures, linear-elastic models could be sufficient to model the material parameters [22].…”

Section: Background 21 Pavement Response Of Elastic Multi-layer Systemmentioning

confidence: 99%

Using Genetic Algorithms to Improve Airport Pavement Structural Condition Assessment: Code Development and Case Study

Donato

Carfì

2023

Information

View full text Add to dashboard Cite

In this paper, we propose a new method of optimization based on genetic algorithms using the MATLAB toolbox “Global Optimization”. The algorithm finds layers moduli of a flexible pavement through the measurement of pavement surface deflections under assigned load conditions. First, the algorithm for the forward calculation is validated, then the algorithm for the back-calculation is proposed, and the results are compared, in the case of airport pavements, with other software using different back-calculation techniques. The goodness of the procedure and the way of managing the algorithm operator is demonstrated by means of positive feedback obtained from the comparison of the results of ELMOD and BackGenetic3D. Moreover, the findings of the analysis prove that, in such an optimization procedure by GA, the best solution is always reached with a low number of generations, generally less than 10, allowing a reduction in the time of calculation and choosing a population big enough to select with good probability, in the initial population, solutions close to the real ones. The code is made available in such a way that the reader can easily apply it to other flexible pavements in the case of fully bonded layers (both for roads and airports). In particular, interested readers can easily modify the algorithm parameters (population number, stop criteria, probability of mutation, cross-over, and reproduction) and the type of fitness function to minimize, together with the geometric and load characteristics (number and thickness of the layers and the range of module variation). The possibility to change the algorithm parameters and the fitness function allows for exploring different scenarios in order to find the best solution in terms of fitness values. It is also possible to intervene in the time of calculation by managing the algorithm’s stopping criteria.

show abstract

“…The FWD is indeed a tool that is used for many pavement applications, especially in terms of monitoring aspects. Although there are also approaches to combine FWD testing with viscoelastic analysis [6][7][8], such aspects were not the main aim of the study.…”

Section: Introductionmentioning

confidence: 99%

Deflection-Based Approach for Flexible Pavement Design in Thailand

Sawangsuriya¹,

Svasdisant²,

Jitareekul³

2023

Infrastructures

View full text Add to dashboard Cite

The Department of Highways (DOH), Thailand, has adopted both empirical and mechanistic approaches for flexible pavement analysis and design. Recently, the deflection-based design approach has been comprehensively reviewed by the DOH for the possible adoption of national design standards and practices. One of the key reasons is that Thailand’s road authorities, i.e., the DOH and the Department of Rural Roads (DRR), have considered the falling weight deflectometer (FWD) for the new construction and rehabilitation of road pavements. In addition, the FWD is widely accepted as the non-destructive test for deflection measurement and structural capacity evaluation. Ultimately, the implication of FWD deflections for in-house pavement analysis and design shall be developed and proposed to Thailand’s road authorities. Therefore, this study presents the deflection-based approach of flexible pavement design in Thailand. The FWD and a standard Thai truck were selected as the main loading applications in this study. A typical FWD loading stress of 700–800 kPa was practically adopted by the DOH and compared with a standard 10-wheel 25-ton truck with a tandem axle-dual wheel configuration with a tire pressure of 690 kPa. The layered elastic analysis was performed to calculate the pavement responses. The results suggest that the flexible pavement design based on a deflection-based approach is simple, practical, and conservative.

show abstract

A mechanistic perspective for airfield pavements evaluation focusing on the asphalt layers’ behaviour

Cited by 9 publications

References 41 publications

Structural Performance Assessment of Airfield Concrete Pavements Based on Field and Laboratory Data

Structural Performance Assessment of Airfield Concrete Pavements Based on Field and Laboratory Data

Using Genetic Algorithms to Improve Airport Pavement Structural Condition Assessment: Code Development and Case Study

Deflection-Based Approach for Flexible Pavement Design in Thailand

Contact Info

Product

Resources

About