Christina Plati

Christina Plati
National Technical University of Athens | NTUA · School of Civil Engineering

PhD

About

80
Publications
17,600
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
871
Citations
Additional affiliations
March 2015 - February 2017
National Technical University of Athens
Position
  • Professor (Assistant)

Publications

Publications (80)
Conference Paper
Green-House Gases (GHGs) are emitted into the atmosphere in significant amounts produced mainly by human sources and activities. Globally, the road transport sector is a significant source of GHGs and particularly of CO2 emissions. Transport sector includes pavements and pavement roughness is a factor that directly affects fuel consumption and cons...
Article
Full-text available
Modern roadways provide road users with a comfortable and safe ride to their destinations. Due to increasing traffic demands and maximum allowable loads, road authorities should also pay attention to the structural soundness of road pavements while seeking cost-effective and timely maintenance or minor rehabilitation activities. This means that a s...
Chapter
Rutting is one of the failure modes in flexible pavements and is associated with reduced pavement serviceability since it results in aquaplaning, reduced skid resistance and increased roughness. Variations in material characteristics influence significantly the rutting resistance of asphalt mixes. Dynamic modulus (E*) is a fundamental property of H...
Article
Full-text available
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 throug...
Article
Full-text available
Building more sustainable pavements for the future requires knowledge of alternative and innovative materials for utilization in future road construction and maintenance activities. Being mindful of this need, the present study investigates a Reacted and Activated Rubber (RAR) compound modifier with the aim of defining an optimal RAR percentage in...
Article
Skid resistance is a key road safety factor indicating the provided friction of a pavement’s surface, which deteriorates over its service life mainly due to traffic polishing. Hence, the polishing behaviour of a pavement’s surface course is important for the provided road safety. For this reason, there have been many studies related to the assessme...
Article
Full-text available
The current paper investigates through finite element analysis (FEM) procedures critical pavement responses taking into consideration material variability, pavement cross-sectional variations, and changes in moisture conditions to highlight the base layer constitutive model’s impact on expected pavement responses. To achieve this aim, initially the...
Conference Paper
Airfield pavements are one of the most important airport assets. Among them, fundamental function is the ability to provide sufficient load-carrying capacity of the expected traffic, which helps to ensure the uninterrupted operation of airport facilities. However, several airfield pavements often face the challenge of either serving aircraft types...
Article
Autonomous vehicles (AVs), including trucks, are already available and their adoption is coming at a rapid pace. Despite the fact that this new transportation technology will travel on existing pavement infrastructure assets, the study and investigation of the AVs structural impact on pavements has not reached the same level of attention and maturi...
Article
Full-text available
Highway pavements are usually monitored in terms of their surface performance assessment, since the major cause that triggers maintenance is reduced pavement serviceability due to surface distresses, excessive pavement unevenness and/or texture loss. A common way to detect pavement surface condition is by the use of vehicle-mounted laser sensors th...
Article
Knowledge of critical strains during the asphalt pavements’ life is an inherent process within pavement structural assessment. Highway agencies need this knowledge to effectively manage potential maintenance activities. Conventional practice includes mechanistic analysis of data collected in-situ. Contrariwise, developing models or algorithms for s...
Article
Pavement analysis encompasses the use of different assumptions for material assessment that can in turn induce variations in the predicted pavement critical strains and affect the outcome of pavement evaluation. This research deals with the incorporation of mechanistic principles into asphalt pavements structural assessment, considering variable me...
Article
Full-text available
The main purpose of modern roadways is to provide roadway users with both a comfortable and safe ride to their destinations. As such, they need pavements in good physical conditions to ensure safe and uninterrupted transportation of the public. During the previous decades, roadway engineers’ interests have shifted towards maintenance and rehabilita...
Article
The pavement engineering community has consistently drawn its attention to a broadened utilization of advanced Non-Destructive Testing (NDT) systems for pavement evaluation. Amongst these systems, the Falling Weight Deflectometer (FWD) is designed to measure surface deflections and assess the pavement structural condition, while Ground Penetrating...
Chapter
This study is an attempt to investigate a reacted and activated rubber (RAR) compound modifier, which is an elastomeric asphalt extender. This type of material is comprised mainly of fine crumb rubber granules with the addition of an activated mineral binder stabilizer; the compounds are typically introduced into the asphalt concrete mixture as a r...
Article
This study investigates the effect of field and laboratory roller compaction methods on the microstructure of asphalt mixtures. Loose material of varying hot mix asphalt (HMA) types was compacted in the laboratory using the steel-segmented roller compactor. Multiple compaction regimes were implemented by adjusting the compaction effort, temperature...
Article
Full-text available
The present study aims to investigate reclaimed asphalt pavement (RAP) materials for utilization for a pavement base layer material with the goal towards increasing the reutilization of materials and the movement towards increased pavement sustainability. Reduced cost for materials and transportation of materials, overall environmental benefits and...
Article
Full-text available
Pavement roughness as a critical determinant of public satisfaction can potentially play a major role in road or highway resource allocation to competing pavement resurfacing projects. With this in mind, the aim of the present paper is to develop an accurate model for the prediction of pavement roughness in terms of the International Roughness Inde...
Conference Paper
Knowledge of the predicted strains and deformations of the individual pavement layers under loading is required for the purpose of accurate pavement design and evaluation. In the current study, a sensitivity analysis of predicted flexible pavement responses is performed through Finite Element Method (FEM) in order to quantify potential variations i...
Article
The current paper outlines the necessity to incorporate Ground Penetrating Radar (GPR) during assessment procedures in order to increase the accuracy of backcalculated results through the increased accuracy provided for test location thickness data. The focus is on the assessment of a pavement that has undergone full depth reclamation with foamed a...
Conference Paper
The Spectral Analysis of Surface Waves technique is based on the dispersive nature of surface waves generated and transmitted through a medium and recorded via geophones. This nondestructive technique can be potentially used for in-situ quality control during pavement construction. SASW is investigated in this study to ascertain the technique's eff...
Conference Paper
This work aims at presenting the main results achieved by Working Group (WG) 2 “GPR surveying of pavements, bridges, tunnels and buildings; underground utility and void sensing” of the COST (European COoperation in Science and Technology) Action TU1208 “Civil Engineering Applications of Ground Penetrating Radar” (www.GPRadar.eu, www.cost.eu). The p...
Article
The initial condition of a newly constructed pavement structure, also known as the zero point, provides valuable information and can be included in pavement management systems. The zero point data for the initial macrotexture level can be gathered both quickly and efficiently by measuring the mean profile depth (MPD) of the pavement surface with a...
Article
Full-text available
A variety of factors affect the overall performance of the material within pavement structure, with moisture content susceptibility being recognized as one of the most important factors that is known to directly affect the resilient modulus of granular base layer materials and consequently the overall performance of pavement structures. While the e...
Article
With the focus on quality assurance practices during pavement construction, the present research aims at investigating the compactability of hot mix asphalt using the ground-penetrating radar technique. Thus, density as an indicator of the compactability of hot mix asphalt is predicted using three different electromagnetic-mixing-theory-based densi...
Article
The dynamic modulus (\(E^{*}\)) of Hot Mix Asphalt (HMA) mixtures is a key input parameter in the Mechanistic-Empirical (M-E) pavement design and analysis processes for the prediction of fatigue and rutting damage. The determination of \(E^{*}\) in the laboratory requires specialized equipment and is an overall time consuming procedure. With this i...
Article
The aim of the present study is the evaluation of the Witczak 1-37A, Bari & Witczak, NCHRP 1-40D and Hirsch models for the estimation of dynamic modulus (E∗) and the subsequent calibration of the model to best fit with laboratory reference data of the material under investigation. For this purpose asphalt mixture specimens for both asphalt base and...
Chapter
The present paper deals with the effect of interlayer bonding conditions between Hot Mix Asphalt (HMA) and Cement Bound Material (CBM) layers on pavement design reinforcement in a case of a semi-flexible pavement. For this purpose a field experiment was conducted in a motorway by the Laboratory of Pavement Engineering of the National Technical Univ...
Article
This article aims to investigate the feasibility of incorporating of an artificial neural network (ANN) as an innovative technique for modelling the pavement structural condition, into pavement management systems. For the development of the ANN, strain assessment criteria are set in order to characterise the structural condition of flexible asphalt...
Chapter
Ground Penetrating Radar (GPR) has proved its ability to act as a powerful geophysical non-destructive tool for subsurface investigations. The remarkable technological developments have increased, among others, the practice of GPR in sensing and mapping utilities and voids. In particular, GPR is effectively used to locate and map objects such as pi...
Article
This study aims to investigate the relationship between different roller compaction modes and resulting mechanical performance. In order to accomplish these objectives, a trial asphalt pavement section was observed and monitored both during the paving and compaction processes. Asphalt mix was sampled from the paver to be used later in laboratory an...
Article
The assessment of paving and compaction temperatures effect on Hot Mix Asphalt (HMA) properties has been the subject of various researches. The present study aims to build upon these researches, by investigating the effectiveness and practicality of infrared thermography (IRT) as an emerging technology to assess HMA paving and compaction. For this...
Article
The aim of the present research is to investigate the effectiveness of the falling weight deflectometer (FWD) to simulate the traffic loading in the case of asphalt pavements that have been cold in-depth recycled (CIR) using foamed asphalt (FA) as a stabilization treatment for base works. The investigation is related with the need of understanding...
Article
Full-text available
Pavement management activities consist mainly of three sequential yet interconnected processes: condition assessment, performance prediction and needs analysis. On this basis, knowledge of the evolution of skid resistance over time is important for pavement maintenance/rehabilitation planning. Seasonal and long term variations have a significant ef...
Conference Paper
Determination of Asphalt Concrete (AC) moduli is a critical issue in terms of pavement evaluation. AC moduli are strongly influenced by temperature variations and thus, determination of AC moduli to a common reference temperature is a complex task. Temperature correction of AC moduli has occupied many researchers over the years yielding the develop...
Article
The basic goal of the present research is to investigate the estimation of both the in-situ density and moisture content within the Hot Mix Asphalt (HMA) pavement layer(s) in a non-destructive way using Ground Penetrating Radar (GPR) trace reflection amplitude. For this purpose, an extensive pavement survey was conducted using an air-coupled GPR sy...
Chapter
The pavement structural condition is one of the main factors to be taken into account for pavement maintenance planning. Therefore, more efficient methods for pavement monitoring and structural evaluation are required in order to ensure a good serviceability and to provide adequate maintenance solutions for the pavements. Non destructive testing (N...
Conference Paper
Full-text available
This paper focuses on the use of Ground Penetrating Radar (GPR) in civil engineering. Open issues in this field are identified and desirable advances in GPR technology, application procedures, data processing algorithms and analysis tools, are addressed. European associations, institutes and consortia interested in this topic are mentioned, togethe...
Conference Paper
The stiffness modulus is an important factor for asphalt mixture characterization, and multiple procedures and theories have been developed, as shown in international literature, to determine the stiffness moduli. Among these, the dynamic modulus (E*) has played an increasingly important role in recent years, with the E*being introduced as a key el...
Conference Paper
Permanent deformation is a serious distress in an asphalt pavement that can have a great impact on its structural condition and serviceability. Prediction of pavement deformation is a complex task due to the fact that it is affected by many factors, including environmental and traffic conditions, structural characteristics, etc. Proper prediction o...
Article
Proper construction of the asphalt pavement is a prerequisite to developing a long lasting roadway that does not require extensive future maintenance. This goal is achieved by verifying that design specifications are met through the use of quality assurance (QA) practices. The in-situ density is regarded as one of the most important controls used t...
Article
The present research study aims to investigate whether increases in the applied load have an impact on the modulus and the in situ behaviour of foamed asphalt (FA)-treated materials used as base layer in pavements that have been cold in-depth recycled. For this purpose, falling weight deflectometer (FWD) measurements were conducted, using varying l...
Article
Ground-penetrating radar (GPR) is a nondestructive testing (NDT) approach for pavement investigation that has been developed and improved upon over the past 30 years. This paper aimed to document how the GPR technique could be incorporated successfully into the process of assessing the structural needs of asphalt pavements. Background information i...
Article
Ground Penetrating Radar (GPR) is a Non Destructive Testing (NDT) technique that has been developed and improved upon over the past 30 years. The technique is frequently utilized in order to evaluate and assess pavement structures. GPR, for pavement evaluation purposes, can be described as a remote sensing system that emits a short pulse, of electr...
Article
For the rehabilitation of heavily damaged pavements, Cold In-Place Recycling (CIR) offers an attractive alternative, in comparison to other pavement rehabilitation options. One issue, however, that still has limited research information available is the fatigue cracking characteristics of CIR pavements, especially in regards to the in situ behavior...
Article
The determination of air voids is one of the most important aspects in the design of Hot Mixed Asphalt (HMA). The stiffness of HMA is also of paramount importance in assessing the mechanical properties of the mixes in terms of pavement performance. The relationship between air voids and stiffness has been recognized. In addition, HMA can be describ...
Article
This study aims to investigate aspects related to the assessment of strains in the body of asphalt pavements that have been cold in-depth recycled utilising foamed asphalt as a stabilisation treatment for base works. For this purpose, the critical tensile strains within the pavement structure were measured using a fiber optic sensor (FOS) system at...
Article
Railroad ballast deterioration is responsible for the majority of differential settlement of tracks, resulting in poor track geometry. Traditionally, ballast is replaced only when it has visually deteriorated, resulting in the planning and programming of maintenance and renewals currently being condition driven. However, there is a significant pote...
Article
Full-text available
The objective of the present study was to conduct a comprehensive field experiment for the in situ assessment of in-depth recycled asphalt pavement using foamed asphalt as a stabilization treatment for base works. For this purpose Nondestructive Testing (NDT) data collected using the Falling Weight Deflectometer (FWD) and Ground Penetrating Radar (...
Article
Nowadays, profile measurements are widely used either for the evaluation of initial smoothness or for monitoring the roughness of in service pavements. For both cases the adoption of roughness specifications or trigger values is always an issue as they influence the road life-cycle costs. In this paper, consideration is given to some of the availab...
Article
Although structural capacity seems to be the major concern of many pavement engineers, road users primarily judge the quality of a road based on its roughness or ride quality. Several parameters influence the ride quality of pavements as felt by the road users. These parameters include pavement surface characteristics, as well vehicle characteristi...
Article
Full-text available
The present paper deals with a view of the availability of high-speed sensor profilers, which has given dramatically increased possibilities to analyze imperfections in pavement surfaces such as roughness. Technical parameters of such profilers, for sensing and analyzing pavement surface profile are described. In addition, the main investigation co...
Article
The effect of in situ variability of Cold In-Place Pavement Recycling (CIPR) is further exacerbated by the inherent sensitivity of in-place stabilized materials such as those treated with foamed asphalt. Besides, it is often difficult to obtain intact cores of the recycled materials in a non-cured condition. As a result quality control of the CIPR...
Article
Ground penetrating radar (GPR) is an intelligent sensor technique that has led to a powerful nondestructive testing (NDT) method for road pavement evaluation. Recent improvements in hardware and, in particular, software processing have contributed to the rapidly expanding popularity and usability of this technique in the pavement engineers communit...
Conference Paper
Ground Penetrating Radar (GPR) has become an increasingly attractive method for the engineering community, in particular for shallow high-resolution applications such as railway trackbed evaluation. It is a non-destructive smart sensing technique, which can be applied dynamically to achieve a continuous profile of the trackbed structure. Due to rec...
Article
In recent years there has been a worldwide trend to link the success of pavement rehabilitation directly with the ride quality, or perceived ride comfort, of the resultant pavement. Both the rehabilitation technique employed and the materials used have the potential to influence the final ride quality achieved. Due to the limited availability of go...
Article
The Ground Penetrating Radar (GPR) is a Non-destructive Testing (NDT) technique, which is able to capture continuous pavement layer thicknesses data. The radar pulse propagation is a major factor for gathering the dielectric constants of pavement materials accurately. The present research focuses on the accuracy of pavement asphalt layer thicknesse...
Article
The cold-in-place recycling technique with foamed asphalt stabilization was used to rehabilitate a severely damaged, heavily trafficked highway, part of the Trans European Network. Lack of experience, at least as far as the performance of the aforementioned technique for heavy-duty pavements was concerned, was the main reason for the Greek Ministry...
Article
Roughness is one of the most important indicators of pavement quality because it directly affects the way pavements serve the road users. The constant demand for safer and more comfortable roads is leading to stricter requirements regarding pavement roughness. In order to achieve such a goal an adequate evaluation method is required. The Internatio...
Article
This paper investigates the assignment of the dielectric properties of hot-mix asphalt (HMA) pavement materials. The dielectric constants of the HMA pavement materials were considered both in the field and the laboratory. Ground Penetrating Radar (GPR) data were collected from 20 asphalt pavement test sites in the field, while dielectric measuremen...

Network

Cited By

Projects

Project (1)
Archived project
Use of non-destructive testing (NDT) methods has tremendously increased over the last decades in a wide range of civil and environmental engineering applications. Research on stand-alone use of electric, electromagnetic, optical and acoustic NDT techniques has rapidly progressed and potentials of these methods have been comprehensively explored and evaluated, making the majority of techniques established in many areas of endeavour. Research focus areas have been mostly on developing new theories, the advancement of hardware and software components, and on introducing novel surveying protocols, data processing and interpretation methods. Accordingly, the standard of quality and accuracy of data has reached very high levels with available technology. Parallel to this, the integration between sensing technologies, in terms of collecting and modelling multi-source, multi-scale and multi-temporal data, has become a very challenging task in research. This concept is in fact being acknowledged as a fundamental area of research development that could highly contribute towards the enhancement of the capabilities of existing NDT methods in new and non-conventional scenarios. This trend is motivated by the need to provide more effective solutions for the investigation of complex scenarios. At the same time, a balance among project costs and time requirements on one hand, and resource management-related constraints due to the involvement of multiple methods, equipment and interdisciplinary expertise in the other, must be maintained. The papers presented in this Special Issue stem from the organisation of a Session on “Data Fusion, Integration, Correlation and Advances of Non-destructive Testing Methods and Numerical Developments for Engineering and Geosciences Applications” held at the European Geosciences Union (EGU) General Assembly in Vienna, Austria, from 7 to 12 April 2019. The Session was aimed to collect the latest research contributions in the areas of NDT methods, theories and new developments for applications in civil and environmental engineering. Special research focus areas were: i) the development of novel data-fusion and correlation approaches and ii) data-integration methodologies, and iii) the advances achieved in the use of stand-alone NDT technologies.