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Journal articles on the topic 'Flexible pavement'

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1

Al-Qadi, Imad L., Samer Lahouar, Kun Jiang, Kevin K. McGhee, and David Mokarem. "Accuracy of Ground-Penetrating Radar for Estimating Rigid and Flexible Pavement Layer Thicknesses." Transportation Research Record: Journal of the Transportation Research Board 1940, no. 1 (2005): 69–78. http://dx.doi.org/10.1177/0361198105194000109.

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In this paper, the accuracy of ground-penetrating radar (GPR) for estimating pavement layer thicknesses is studied on the basis of the investigation of 17 pavement sites in Virginia. The considered sites have different types of pavement systems (flexible, continuously reinforced, jointed concretes, and composite) and different ages (0 to 5 years; 10 to 15 years; older than 20 years with a surface less than 10 years; and older than 20 years with a surface older than 10 years). Because of the diversity of the test sections considered, the accuracy of the GPR thicknesses was studied for pavement
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2

Shruti, Wadalkar*1 Dr. R. K. Lad2 &. Dr. R. K. Jain3. "DETECTION AND ANALYSIS OF CRACKS FOR RATING OF FLEXIBLE PAVEMENTS." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES 6, no. 1 (2019): 154–57. https://doi.org/10.5281/zenodo.2548927.

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Pavement condition assessment is one of the important components of pavement management system. Pavement maintenance strategy is decided on the basis of this assessment. There are various factors for pavement condition assessment like cracking, rutting, deflection, raveling, potholes etc. In this study, cracks are considered for rating of pavements as they are one of the important factors of pavement assessment. Longitudinal, transverse, fatigue and block cracking is considered for the study as they are frequently occurs in the flexible pavements. The said cracks are detected for selected road
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3

Kiran, S., and Madhu Kavitha. "Rutting and Fatigue Analysis of Flexible Pavement using KENPAVE and IITPAVE: A Review." Journal of Transportation Engineering and Traffic Management 3, no. 1 (2022): 1–12. https://doi.org/10.5281/zenodo.5830649.

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Pavements are the vital part of any highway system. Due to harsh climatic conditions and premature distresses, pavements are falling apart in initial years of construction, even though they are designed for 15-20 years. Furthermore, pavements frequently fail prematurely due to poor quality control during construction, high axle loads, extreme weather conditions, and insufficient maintenance funding. Understanding the deterioration pattern of the flexible pavement is necessary to take the decision for strengthening the pavement. Premature failures like rutting and fatigue in flexible pavement c
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Sutapa, I. Ketut, Ida Bagus Wirahaji, and I. Made Gita Ariadi. "Analisis Perbandingan Perkerasan Kaku dan Perkerasan Lentur Pada Proyek Peningkatan Jalan Celukan Bawang-Pelabuhan." Reinforcement Review in Civil Engineering Studies and Management 1, no. 1 (2022): 36–49. http://dx.doi.org/10.38043/reinforcement.v1i1.4099.

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Road pavement is a layer structure located above the subgrade, there is a layer of upper foundation and sub-base which each layer consists of compacted aggregates which have a function to transmit stress due to wheel load. There are 3 road pavements, asphalt or flexible pavement, concrete/ rigid pavement (rigid pavement) and composite pavement (Composit pavement). In determining pavement thickness there are several methods to use, including in this study using the 1993 AASHTO method for flexible pavements and the 2017 Road Pavement Manual method (Bina Marga 2017) for rigid pavements. The locat
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Claudia, Petcu. "Parametric Studies for Flexible Pavements." Romanian Journal of Transport Infrastructure 12, no. 2 (2023): 1–21. http://dx.doi.org/10.2478/rjti-2023-0015.

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Abstract The problem of dimensioning pavements requires knowledge of the assumptions and calculation schemes underlying the assessment of deformations of pavements under traffic pressure. The aim of this paper is to study the influence of both the values chosen for the dynamics module of asphalt courses in the pavement and the elastic composition of the pavement using three bituminous layers (wearing, binder, base), or two bituminous layers (wear, binder/base). In the first part of the paper a general description of pavements is presented. Roads are also described, starting from Roman roads to
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6

Gopalakrishnan, Kasthurirangan, and Marshall R. Thompson. "Subgrade stress ratios as airfield pavement rutting performance indicators." Canadian Journal of Civil Engineering 34, no. 2 (2007): 189–98. http://dx.doi.org/10.1139/l06-134.

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Rutting is a major distress in airport flexible pavements. Subgrade vertical strain criteria are used in many airport flexible pavement design procedures to consider the development of rutting. Several research studies have identified the limitations associated with these criteria. Design criteria based on subgrade stress ratios (SSRs) are being considered for evaluating subgrade rutting in airport flexible pavements. In this paper, the SSRs based on measured vertical subgrade stresses are related to surface rutting in flexible pavements subjected to repeated trafficking of Boeing 777 and 747
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7

Hemant, Kumar, Umank Mishra Dr, and Bajpayee Nikhil. "Strengthening and Widening of Flexible Pavement." Journal of Earthquake Science and Soil Dynamics Engineering 5, no. 3 (2023): 1–15. https://doi.org/10.5281/zenodo.7512049.

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Pavements are important for traffic to operate swiftly, safely, and seamlessly. Pavements can be classified as flexible or rigid in general. Flexible pavements have a low flexural strength and a flexible structural reaction. Stiff pavements can be distinguished by their stiffness and flexural strength. Rapid advancements in car technology have resulted in huge moving loads on pre-existing routes in an effort to reduce transportation costs. Existing roads, which were built on general principles, are unable to handle significant wheel loads, resulting in road degradation. Designing a pavement is
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8

Luhana, Pushpak, Prof Jayeshkumar Pitroda, and Dr L. B. Zala Dr. L. B. Zala. "Nanotechnology in Flexible Pavement." International Journal of Scientific Research 2, no. 1 (2012): 78–80. http://dx.doi.org/10.15373/22778179/jan2013/27.

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9

White, Greg. "Comparing the Cost of Rigid and Flexible Aircraft Pavements Using a Parametric Whole of Life Cost Analysis." Infrastructures 6, no. 8 (2021): 117. http://dx.doi.org/10.3390/infrastructures6080117.

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The construction and maintenance costs, as well as the residual value, were calculated for structurally equivalent rigid and flexible airfield pavements, for a range of typical commercial aircraft, as well as a range for typical subgrade conditions. Whole of life cost analysis was performed for a range of analysis periods, from 40 years to 100 years. For the standard 40-year analysis period and a residual value based on rigid pavement reconstruction, the rigid pavements had a 40% to 105% higher whole of life cost than equivalent flexible pavements, although this comparison is limited to the pa
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10

Dhabal, Arghya. "A Comprehensive Study on Life Cycle Cost Examination for a Road (Preamser Hirnikheda Mundla) Project in Madhya Pradesh." International Journal for Research in Applied Science and Engineering Technology 9, no. 9 (2021): 554–72. http://dx.doi.org/10.22214/ijraset.2021.37981.

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Abstract: A Life Cycle Cost Analysis (LCCA) is need to performed at the design period of the projects in order to be proficient to performed more profitable, to help take decision for type of pavement selection either flexible or rigid and also, to decide the comparative expense of different type of pavement. Specially for developing countries like India, due to insufficient funds for the project. However, now-a-days in India many infrastructure development projects like highways are being executed through loan from different external funding agencies like Asian Development Bank (ADB), World B
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11

Raju, Y. Kamala, and C. Vivek Kumar. "Experimental Investigation on Design of Thickness for Flexible Pavement Subgrade Soils using CBR Approach." E3S Web of Conferences 184 (2020): 01087. http://dx.doi.org/10.1051/e3sconf/202018401087.

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This paper aim’s to ensure that the transmitted stresses due to wheel load are adequately reduced, so that they will not exceed bearing capacity of the sub- grade. This present study deals with the design thickness of flexible pavements, where majority of the Indian roads are flexible pavements having bituminous layer. Earlier, due to the scarcity of cement and India went for flexible pavements with bituminous toppings. This flexible pavement is preferred over cement concrete roads as they have a great advantage that these can be strengthened and improved in stages with the growth of traffic.
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12

Eka Putri, Elsa, Rina Yuliet, Seng Cheh Hoo, et al. "StormPav Green Pavement the environmentally friendly pavement." E3S Web of Conferences 156 (2020): 05008. http://dx.doi.org/10.1051/e3sconf/202015605008.

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Growth of economy and population density, open space is being converted to roads or other infrastructures such as buildings or parking lots reducing green space. This paper demonstrates a new type of green pavement designed to replace flexible and rigid pavements which are water impermeable and have a short design life. This type of green pavement helps reduce runoff problems in urban areas. StormPav GP is an innovative Industrialised Building System (IBS) Green Pavement which has been shown to have structural, environmental and economic advantages. However, its susceptibility to distress has
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13

Al-Qadi, Imad L., and Samer Lahouar. "Measuring Rebar Cover Depth in Rigid Pavements with Ground-Penetrating Radar." Transportation Research Record: Journal of the Transportation Research Board 1907, no. 1 (2005): 80–85. http://dx.doi.org/10.1177/0361198105190700109.

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Ground-penetrating radar (GPR) is a nondestructive investigation tool that is usually used in flexible pavement evaluation to estimate the thicknesses of the various layers composing the pavement. GPR is also used in flexible pavements to detect subsurface distresses, such as moisture accumulation and air voids. For rigid pavements and bridge decks, GPR is used to measure the thickness of the concrete slab and detect the location of reinforcing bars (rebar). Rebar detection is typically achieved, in this case, when an experienced operator finds the rebar's classic parabolic signature in the GP
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14

Asres, Enyew, Tewodros Ghebrab, and Stephen Ekwaro-Osire. "Framework for Design of Sustainable Flexible Pavement." Infrastructures 7, no. 1 (2021): 6. http://dx.doi.org/10.3390/infrastructures7010006.

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The conventional methodologies for the design of flexible pavements are not adequate in providing solutions that meet the diverse sustainability challenges. Therefore, developing new methodologies and frameworks for the design of flexible pavement has become a priority for most highway agencies. On the other hand, there is no sound sustainable flexible pavement framework at the design phase that considers the key engineering performance, environmental impact, and economic benefits of sustainability metrics. Hence, premature failure of flexible pavements has become a common problem leading to a
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15

Bouacha, Nadjet, Abdesselam Bouguerra, and Abdelhak Bouafia. "Improving the Resilience of the Road Network in Algeria: A Comparative Analysis of Flexible, Geosynthetically Reinforced, and Rigid Pavements." Sustainability 15, no. 19 (2023): 14426. http://dx.doi.org/10.3390/su151914426.

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Despite subsequent strengthening measures, pavements constructed in Algeria suffer rapid deterioration soon after completion, with continued decline in some cases. Various factors contribute to this problem, including cost and availability of materials, build quality, and environmental conditions. The entire Algerian road network is based on flexible and semi-rigid pavements. This study explores pavement structures using numerical predictive models to advance our understanding of road construction and maintenance. Using Abaqus 2022 finite element analysis software, we consider three scenarios:
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16

Thompson, Marshall R. "Mechanistic-Empirical Flexible Pavement Design: An Overview." Transportation Research Record: Journal of the Transportation Research Board 1539, no. 1 (1996): 1–5. http://dx.doi.org/10.1177/0361198196153900101.

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Activities associated with the development of the revised AASHTO Guide for the Design of Pavement Structures (1986 edition) prompted the AASHTO Joint Task Force on Pavements (JTFOP) recommendation to immediately initiate research with the objective of developing mechanistic pavement analysis and design procedures suitable for use in future versions of the AASHTO guide. The mechanistic-empirical (M-E) principles and concepts stated in the AASHTO guide were included in the NCHRP 1-26 (Calibrated Mechanistic Structural Analysis Procedures for Pavements) project statement. It was not the purpose o
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17

Qiao, Yaning, Andrew R. Dawson, Tony Parry, Gerardo Flintsch, and Wenshun Wang. "Flexible Pavements and Climate Change: A Comprehensive Review and Implications." Sustainability 12, no. 3 (2020): 1057. http://dx.doi.org/10.3390/su12031057.

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Flexible pavements and climate are interactive. Pavements are climate sensitive infrastructure, where climate can impact their deterioration rate, subsequent maintenance, and life-cycle costs. Meanwhile, climate mitigation measures are urgently needed to reduce the environmental impacts of pavements and related transportation on the macroclimate and microclimate. Current pavement design and life cycle management practices may need to be modified to adapt to changing climates and to reduce environmental impacts. This paper reports an extensive literature search on qualitative and quantitative p
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18

Collop, A. C., D. Cebon, and D. J. Cole. "Effects of Spatial Repeatability On Long-Term Flexible Pavement Performance." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 210, no. 2 (1996): 97–110. http://dx.doi.org/10.1243/pime_proc_1996_210_177_02.

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The effects of spatial repeatability of dynamic tyre forces on the long-term performance of three typical British pavement constructions are investigated. Long-term pavement performance is calculated using a ‘whole-life pavement performance Model’ (WLPPM). The WLPPM is capable of predicting deterministic pavement damage due to realistic traffic and environmental loading, throughout the life of the pavement. Particular attention is given to modelling dynamic tyre forces and patterns of loading applied to the pavement by a typical fleet of heavy vehicles. A method is described for simulating veh
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19

Isradi, Muhammad, Joewono Prasetijo, Thomas Setiabudi Aden, and Andri Irfan Rifai. "Relationship of present serviceability index for flexible and rigid pavement in urban road damage assessment using pavement condition index and international roughness index." E3S Web of Conferences 429 (2023): 03012. http://dx.doi.org/10.1051/e3sconf/202342903012.

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Functional and structural failures in the pavement structure can be distinguished. The Road state Value measures the functional state of road pavements in managing flexible and stiff pavements for urban roadways in Indonesia. The pavement condition assessment is based on the unevenness of the pavement surface, rutting, and direct surface damage. This research aims to assess the worth of road damage on flexible and rigid pavements and establish a special relationship between Present Serviceability, International Roughness, and Pavement Condition Index. Direct observation in the field is utilize
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20

Ziari, Hassan, and Mohammad Mahdi Khabiri. "INTERFACE CONDITION INFLUENCE ON PREDICTION OF FLEXIBLE PAVEMENT LIFE." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 13, no. 1 (2007): 71–76. http://dx.doi.org/10.3846/13923730.2007.9636421.

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The effects of interface condition on the life of flexible pavements have been determined. The methodology consists of implementing a previously derived interface constitutive model into the Kenlayer programme to compute the stresses and strains in typical flexible road structures. The shell transfer functions for fatigue cracking and terminal serviceability were used to estimate the pavement life. The behaviour of in‐service pavements indicates that the condition of the bonding between pavement layers plays an important role in the road structures performance. Premature failure of road sectio
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21

Marszałek, Jan, Karolina Gulańczyk, and Paweł Muzolf. "Strengthening airfield pavements with cement concrete layers." Bulletin of the Military University of Technology 67, no. 2 (2018): 119–32. http://dx.doi.org/10.5604/01.3001.0012.0972.

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The paper presents original solutions and methodology for determining the thickness of cement concrete strengthening layers for repairing and upgrading existing flexible and rigid airfield pavements. Flow diagrams and nomograms for determining edge stress were developed. These are novel solutions which have not been presented in a similar form before now. After deriving the above relations, a method for the practical utilisation of the resulting monograms depending on the parameters of existing airfield pavement and properties of the cement concrete strengthening layer is presented. Preparing
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22

Gopalakrishnan, Kasthurirangan. "PREDICTING CAPACITIES OF RUNWAYS SERVING NEW LARGE AIRCRAFT." TRANSPORT 23, no. 1 (2008): 44–50. http://dx.doi.org/10.3846/1648-4142.2008.23.44-50.

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This paper presents a simplified approach for predicting the allowable load repetitions of New Large Aircraft (NLA) loading for airfield runways based on Non‐Destructive Test (NDT) data. Full‐scale traffic test results from the Federal Aviation Administration's National Airport Pavement Test Facility (NAPTF) were used to develop the NDT‐based evaluation methodology. Four flexible test pavement sections with variable (unbound layer) thicknesses were trafficked using six‐wheel and four‐wheel NLA test gears until the test pavements were deemed failed. Non‐destructive tests using a Heavy Weight De
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23

Jamieson, Sean, Luke Verstraten, and Greg White. "Analysis of the Opportunities, Benefits and Risks Associated with the Use of Recycled Materials in Flexible Aircraft Pavements." Materials 18, no. 13 (2025): 3036. https://doi.org/10.3390/ma18133036.

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International waste policy promotes the reduction and re-use of waste materials, and in some cases, specifically calls for the use of recycled materials in pavements. In countries like Australia, most of the aircraft pavement network is constructed of flexible pavements. Consequently, understanding the opportunities for recycled materials in flexible aircraft pavements is paramount to increasing the technology uptake. This paper reviews opportunities for the incorporation of recycled materials in flexible airport pavement construction, specifically, their application to particle substitution i
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Watson, D. K., and RKND Rajapakse. "Seasonal variation in material properties of a flexible pavement." Canadian Journal of Civil Engineering 27, no. 1 (2000): 44–54. http://dx.doi.org/10.1139/l99-049.

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Seasonal variation of temperature and moisture causes considerable changes in the load-carrying capacity of pavements in geographical areas subjected to extreme freeze/thaw conditions. The Seasonal Monitoring Program (SMP) of the Long Term Pavement Performance (LTPP) study of the Federal Highway Administration (FHWA) monitors seasonal variations in Falling Weight Deflectometer (FWD) deflections, air temperature, rainfall, soil temperature, moisture content, and soil electrical resistance at numerous sites across North America. This study relates changes in pavement load carrying capacity repre
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25

Livneh, Moshe. "Determination of residual life in flexible pavements." Canadian Journal of Civil Engineering 23, no. 5 (1996): 1012–24. http://dx.doi.org/10.1139/l96-908.

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In the field of pavement rehabilitation design, one finds a prominent absence of uniformity in the principles of calculation, a lack of clarity as to the testing methods, and a confusion of basic physical concepts. An example of this situation is the residual life of the pavement structure, which constitutes an important measure in the calculation of pavement bearing capacity. The basic question of how to establish such a parameter in practice is discussed in this paper by examining the relationships between the residual life parameter and the pavement surface state, the pavement structural st
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26

karthik, Ch Krishna, M. Kanta Rao, Malathi Narra, Ch Srinivas, and P. Mani Kiran. "Performance based evaluation on strengthening of flexible pavement using sbr and rice husk ash as filler material." Journal of Physics: Conference Series 2779, no. 1 (2024): 012022. http://dx.doi.org/10.1088/1742-6596/2779/1/012022.

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Abstract This research paper explores the performance-based evaluation of flexible pavement reinforcement through the incorporation of Styrene-Butadiene Rubber (SBR) in bitumen and the utilization of rice husk ash as a filler material. The study aims to assess the impact of these additives onthe mechanical and functional properties of flexible pavements, considering factors such as durability, stability, cracks and rutting resistance. The research contributes to the existing body of knowledge by providing insights into the effects of SBR-modified bitumen and rice husk ash on the pavement’s res
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27

Judycki, Józef, Piotr Jaskuła, Marek Pszczoła, et al. "Development of new „Catalogue of typical flexible and semi-rigid pavement structures”." Budownictwo i Architektura 13, no. 4 (2014): 127–36. http://dx.doi.org/10.35784/bud-arch.1750.

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This publication describes research and design works which were conducted at the Gdansk University of Technology for the purpose of development of new catalogue of typical flexible and semi-rigid pavement structures. The studies included: standardization of pavement structures terminology, study of foreign pavement structures catalogues and design methods, analysis of fatigue criteria for design of flexible and semi-rigid pavements, analysis of road traffic, based on weight in motion data, design of subgrade improvement, incorporation of new pavement materials, recycled and anthropogenic mater
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28

Mactutis, Joseph A., Sirous H. Alavi, and Weston C. Ott. "Investigation of Relationship Between Roughness and Pavement Surface Distress Based on WesTrack Project." Transportation Research Record: Journal of the Transportation Research Board 1699, no. 1 (2000): 107–13. http://dx.doi.org/10.3141/1699-15.

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Modern pavement rehabilitation and design methodologies require an adequate evaluation of the functional capacity of pavements. A key component of this functional capacity is the roughness of the pavement. The current standard for characterization of a pavement’s roughness is the international roughness index (IRI). Pavement roughness measurements were conducted at regular intervals during the application of approximately 5 million equivalent single-axle loads at the WesTrack Project, a full-scale flexible pavement accelerated loading facility located near Reno, Nevada. The results are present
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29

Al-Qadi, Imad L., Samer H. Dessouky, Jayhyun Kwon, and Erol Tutumluer. "Geogrid in Flexible Pavements." Transportation Research Record: Journal of the Transportation Research Board 2045, no. 1 (2008): 102–9. http://dx.doi.org/10.3141/2045-12.

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Full-scale accelerated testing was used to provide new insight into quantifying the effectiveness of geogrids on low-volume flexible pavement performance. Although several previous studies report that geogrids improve pavement performance by enhancing structural capacity and reducing distress potential, the new study addresses how to maximize the benefits and cost-effectiveness of geogrid. To perform full-scale testing, three cells of flexible pavements, each having three pavement sections, were constructed. The granular base and hot-mix asphalt (HMA) layer thicknesses varied, and each cell ha
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Wei, Lian Yu, Kai Wang, Shi Ning Li, Shi Bin Ma, and Yang Feng Wu. "Temperature Stress Analysis of Concrete Overlay on Old Asphalt Pavement." Advanced Materials Research 255-260 (May 2011): 3416–20. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3416.

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Temperature is one of the most important factors affecting the design and performance of both flexible and rigid pavements. The functional as well as the structural performance of flexible and rigid pavements is highly dependent on the temperature regime to which these pavements are exposed. Temperature variations within pavement structure contribute to distress and possible failure of that structure. According to pavement temperature stress calculation principle, based on general finite element software ANSYS, the paper adopt three-dimensional finite element method analysed temperature stress
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31

Wadalkar, Shruti, Ravindra K. Lad, and Rakesh K. Jain. "Performance Assessment of Flexible Pavements: Fuzzy Evidence Theory Approach." Civil Engineering Journal 6, no. 8 (2020): 1492–502. http://dx.doi.org/10.28991/cej-2020-03091562.

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Pavement performance evaluation is one of the most important steps of the pavement management system. It consists of identifying pavement condition according to various distresses occurs in the pavement surface. Data collection in performance assessment of road is done in several ways. An attempt has been made to address the problem and a new formalism is proposed for performance assessment of flexible pavements. Vagueness in the perception of expert for performance assessment of pavement based on techno-scientific parameters in linguistic terms for the domain base usage coupled with impressio
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32

Yin, Zihong, Kevin Maraka Ndiema, Raymond Leiren Lekalpure, and Clement Kiprotich Kiptum. "Numerical Study of Geotextile-Reinforced Flexible Pavement Overlying Low-Strength Subgrade." Applied Sciences 12, no. 20 (2022): 10325. http://dx.doi.org/10.3390/app122010325.

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Construction of low-volume flexible pavements on low-strength subgrade poses design, construction, and maintenance challenges. While researchers have generally acknowledged the potential for geosynthetics as reinforcement material, they mainly focused on permanent deformation. Therefore, this paper presents a numerical study of low-volume flexible pavement reinforced with geotextile material under static loading to determine the improvement due to reinforcement based on three criteria: rutting performance, geosynthetic placement location, and base course thickness reduction. Based on the Finit
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33

Ren, Rui Bo, Li Tao Geng, and Wen Yang Qi. "Dynamic Response Analysis for Two Typical Structures of Saturated Asphalt Pavements with 3D Finite Element Method." Advanced Materials Research 255-260 (May 2011): 3391–96. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3391.

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The combined effect of moisture and dynamic loading on asphalt mixtures has been recognized as one of the main causes of premature deterioration of flexible pavements. Based on porous medium theory, the asphalt mixture is regard as saturated porous material, and a three-dimensional finite element model is established to investigate dynamic response of two typical asphalt pavement structures, which are the semi-rigid asphalt pavement and the semi-rigid asphalt pavement with flexible base course. Then the spatial and temporal distribution of stress, strain and pore fluid pressure of the two stru
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34

Ghadimi, Behzad, Hamid Nikraz, Colin Leek, and Ainalem Nega. "A Comparison between Austroads Pavement Structural Design and AASHTO Design in Flexible Pavement." Advanced Materials Research 723 (August 2013): 3–11. http://dx.doi.org/10.4028/www.scientific.net/amr.723.3.

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This study deals with the Austroads (2008) Guide to Pavement Technology Part 2: Pavement Structural Design on which most road pavement designs in Australia are based. Flexible pavement designs and performance predictions for pavements containing one of more bound layers derived from the mechanistic Austroads pavement design methodology and the AASHTO-2004 approach are compared for Australian conditions, with consideration of subgrade and other material properties and local design preferences. The comparison has been made through two well-known programs namely CIRCLY (5.0) and KENLAYER. The stu
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35

Mukhtar, Hamid, and Osama Abdulshafi. "Performance of Flexible and Rigid Pavements in Ohio." Transportation Research Record: Journal of the Transportation Research Board 1536, no. 1 (1996): 94–102. http://dx.doi.org/10.1177/0361198196153600114.

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Deviations in traffic and performance prediction parameters and overall standard deviations applicable to Ohio were determined. Pavement test sites were selected to represent the statewide distribution of pavement designs in Ohio, characterized by such factors as material type, functional classification, and different climatic and soil regions. Core samples were obtained and several laboratory tests were conducted to determine the as-constructed material properties and variability of the design input parameters. Comparison of predicted and observed performances based on approximately 4 years o
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McManus, Kerry J., and John B. Metcalf. "Analysis of Deterioration Models for Lightly Loaded Thin Seal Flexible Pavements." Transportation Research Record: Journal of the Transportation Research Board 1819, no. 1 (2003): 294–95. http://dx.doi.org/10.3141/1819b-37.

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A set of deterioration models is required to manage local government authority (LGA) pavements in a cost-effective manner; yet, most existing deterioration models have been derived for the major highways of the State Road Authority system. LGA pavements are different in terms of pavement life, the effect of the environment, loading, and expectations of performance with respect to riding quality. There is a greater emphasis on sustained light routine maintenance in LGAs. There is a need to develop models that more closely represent LGA pavements so they can be used to forecast the deterioration
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37

Abdulsahib, Iftikhar, Miami M. Hilal, and Mohammed Y. Fattah. "Semi-Flexible Pavement: A Review of Design and Performance Evaluation." E3S Web of Conferences 427 (2023): 03001. http://dx.doi.org/10.1051/e3sconf/202342703001.

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It is known to researchers in the field of road construction and development. Three types of pavement are rigid, flexible, and composite paving. The composite pavement consists of a layer of flexible pavement on top of which a layer of rigid pavement is placed or vice versa. All of these types have advantages in addition to disadvantages that affect road performance on the one hand and user convenience on the other. About 50 years ago, work began establishing a type of pavement characterized by its semi-flexible performance, which combines rigid pavement's rigidity and flexible pavement's flex
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Nandar, Tun, Kyaing, and Thet Thet Aye Moe. "Performance Modelling of Flexible Rural Road Pavements in Myanmar." International Journal of Advances in Engineering and Technology 17, no. 2 (2024): 133–39. https://doi.org/10.5281/zenodo.11228457.

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<em>The study aims to determine the factors influencing rural road pavement conditions in Myanmar to improve maintenance and extend pavement lifespan. This paper calculates the visual pavement condition index (VCI) using guidelines for the visual assessment of road pavement and develops a performance model for flexible rural pavements using regression analysis. Visual inspections indicated that ravelling, potholes, edge drops, and bleeding were the most common distresses, highlighting the need for targeted maintenance, especially for severe distress problems. The findings indicate that the pos
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Vepa, T. S., K. P. George, and A. Raja Shekharan. "Prediction of Pavement Remaining Life." Transportation Research Record: Journal of the Transportation Research Board 1524, no. 1 (1996): 137–44. http://dx.doi.org/10.1177/0361198196152400116.

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The evaluation of remaining life is necessary to make optimal use of the structural capacity of in-service pavements. It simply represents the useful life left in the pavement until a failure condition is reached. Knowledge of remaining life facilitates decision making in regard to strategies for reconstruction-rehabilitation of roads, thereby leading to the efficient use of existing resources. Several methods proposed or used by various agencies to estimate the remaining lives of pavements are reviewed. They are classified under two categories: functional and structural. Making use of the Mis
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Wathugala, G. Wije, Baoshan Huang, and Surajit Pal. "Numerical Simulation of Geosynthetic-Reinforced Flexible Pavements." Transportation Research Record: Journal of the Transportation Research Board 1534, no. 1 (1996): 58–65. http://dx.doi.org/10.1177/0361198196153400109.

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In traditional analyses of flexible pavements the linear elastic material behavior is assumed for pavement materials. However, pavement materials do not behave as linear elastic materials. They can be better modeled by using elasto-plastic constitutive relationships. The consequences of the assumption of linear elasticity in the prediction of the behavior of geosynthetic-reinforced flexible pavements are presented. The effect of the stiffness of geosynthetic reinforcements on pavement behavior is also studied. The behavior of a geosynthetic-reinforced flexible pavement is analyzed by the finit
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Agbelele, Koffi Judicael, Daniel Yémalin Agossou, and Crépin ZEVOUNOU. "Geosynthetic Reinforcement: A Strategy for Preventing Deformation of Flexible Pavements on Unstable Ground." International Journal of Research and Review 10, no. 12 (2023): 294–303. http://dx.doi.org/10.52403/ijrr.20231232.

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This study assesses the effectiveness of geosynthetic reinforcement for flexible pavements on unstable ground. The methodology includes geotechnical data collection and modelling with Alizé LCPC and PLAXIS 2D 8.2. The results highlight the importance of geogrid reinforcement. Vertical deformations are reduced by the geogrids, with values of 3.44. m (phase 0 unreinforced), 2.65. m (phase 1 reinforced) and 2.07. m (phase 2 reinforced with reduced thickness). Horizontal deformations show an improvement of 117.07. % (reinforced pavement) compared with 51.54. % (reduced thickness). Vertical deforma
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Li, Guoxun, Deyong Wang, Huaizhi Zhang, Biao Xu, Fan Yang, and Zhen Zhang. "The Influence of the Application Layer of Pouring Semi-Flexible Pavement Material on Low-Temperature Stress." Processes 12, no. 2 (2024): 245. http://dx.doi.org/10.3390/pr12020245.

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Pouring semi-flexible pavement material (PSFM) is widely used as a wearing layer material or below pavement due to its excellent resistance to deformation at high temperatures and under heavy loads. However, in cold regions, the material exhibits severe cracking issues. The primary objective of this study is to enhance the resistance of pouring semi-flexible pavements (SFPs) to low-temperature cracking in cold regions by strategically designing pavement structures that incorporate PSFM. To achieve this goal, we conducted indoor tests to determine the relaxation modulus and temperature shrinkag
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PK, Rabeesh Kumar. "Analysis and Design of Flexible Pavement and Cost Comparison with Cement-Treated Base and Subbase Material." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem34799.

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Road transport is important in economic, social; and a country’s overall development. Various commercial vehicle classes have utilized roads with different axle configurations and loads. Due to the cumulative effect of wheel loads and the aging of bitumen binder flexible pavement starts deteriorating. The bitumen pavement failure is mainly due to fatigue cracking as well as rutting deformation. Thus, proper load analysis for the intended period of pavement planned life needs to be analyzed and the pavement designed accordingly. The development of software such as IITPAVE enables the calculatio
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Kleizienė, Rita, Audrius Vaitkus, and Donatas Čygas. "Influence of asphalt visco-elastic properties on flexible pavement performance." Baltic Journal of Road and Bridge Engineering 11, no. 4 (2016): 313–23. http://dx.doi.org/10.3846/bjrbe.2016.36.

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Even though every layer of pavement structure is important and affects pavement performance, the asphalt layers visco-elasticity plays significant role. Bitumen properties, as well as asphalt mixture properties, vary depending on temperature and loading conditions. These variations influence entire pavement bearing capacity and has to be evaluated in pavement design. The main challenge is material behaviour description through simple models to incorporate them to pavement design. Generally, pavements are designed using Multilayer Elastic Theory assuming that all materials are elastic, isotropi
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Saleh, Ali, and László Gáspár. "Machine learning modelling the rut depth of WMA mixtures with variable reclaimed asphalt pavement (RAP) and foamed bitumen content." Dorogi i mosti 2024, no. 30 (2024): 138–56. http://dx.doi.org/10.36100/dorogimosti2024.30.138.

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ntroduction. Rutting of flexible, super flexible and semi-rigid pavement structures is a typical and frequently decisive condition parameter, form of pavement deterioration. That is why, any research result in the field can have of high importance for the road engineers. Problem Statement Rutting poses a significant challenge to asphalt pavements, causing permanent deformation under heavy loads, particularly in warm and wet conditions. Purpose. This pavement distress type has — in addition to riding comfort challenges — important traffic safety consequences (e.g. aquaplaning), as well. The res
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Park, Hee Mun, and Y. Richard Kim. "Prediction of Remaining Life of Asphalt Pavement with Falling-Weight Deflectometer Multiload-Level Deflections." Transportation Research Record: Journal of the Transportation Research Board 1860, no. 1 (2003): 48–56. http://dx.doi.org/10.3141/1860-06.

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The development of prediction methods for the remaining life of flexible pavements using falling-weight deflectometer (FWD) multiload-level deflections is presented. Pavement response models and pavement performance models were used in developing this procedure. The pavement response models were designed to predict critical pavement responses from surface deflections and deflection basin parameters. The pavement performance models were used to develop the relationships between critical pavement responses obtained from pavement response models and actual pavement performance. Pavement distress
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Duggal, Er Ajay Kumar, and Er Komal Vij. "Various Alternatives in Flexible Pavement Design and their Suitability." International Journal for Research in Applied Science and Engineering Technology 11, no. 12 (2023): 1919–25. http://dx.doi.org/10.22214/ijraset.2023.57758.

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Abstract: The road network of about 63.3 lakh Km in India is the second largest in the world. Mostly Flexible pavement construction had been adopted but over last decade, emphasis is made to build long lasting pavement and hence Concrete Pavements have got more adoptability. All pavements are designed in accordance with the relevant codes. However, in order to make road infrastructure more economical by virtue of utilization of various recycled materials, greater flexibility is available in terms of design. However, this requires a thorough understanding of the genesis of various design types,
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Ponniah, Joseph E., and Gerhard J. Kennepohl. "Crack Sealing in Flexible Pavements: A Life-Cycle Cost Analysis." Transportation Research Record: Journal of the Transportation Research Board 1529, no. 1 (1996): 86–94. http://dx.doi.org/10.1177/0361198196152900111.

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Pavement cracks are usually sealed to prevent water from entering base course layers. Experience suggests that water in pavement layers hastens pavement deterioration and, therefore, increases rehabilitation costs. Initially the Ministry of Transportation, Ontario (MTO), Canada, had limited success in sealing cracks because inappropriate materials and installation procedures were used. This setback during the initial stages of development in crack sealing raised questions about the effectiveness of crack sealing in reducing the rate of pavement deterioration. In the 1970s and 1980s MTO carried
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Asadi, Mojtaba, Nivedya Madankara Kottayi, Cesar Tirado, Rajib Basu Mallick, Ali Mirchi, and Soheil Nazarian. "Framework for Rigorous Analysis of Moisture-Related Structural Damage in Flexible Pavements." Transportation Research Record: Journal of the Transportation Research Board 2673, no. 11 (2019): 640–48. http://dx.doi.org/10.1177/0361198119852606.

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The infiltration of water from precipitation through the hot mix asphalt layers in flexible pavements can lead to significant decrease in the moduli of the underlying layers, especially the base layer. As a result, the weakened pavement structure can suffer more damage and deteriorate faster compared with the same pavement under its normal condition. The objective of this study is to develop a framework that can lead to public-domain software that highway agencies can use on a regular basis to conduct a rigorous analysis of the moisture-related structural damage in flexible pavements. A framew
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Kumar, Rahul, and Sunil Sharma. "Perpetual Flexible Pavement vs. Rigid Pavement: An Economic and Environmental Cost Comparison." IOP Conference Series: Earth and Environmental Science 1084, no. 1 (2022): 012053. http://dx.doi.org/10.1088/1755-1315/1084/1/012053.

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Abstract India needs roads that can handle a large volume of traffic and have a long service life due to the scarcity of natural resources and their rising cost. Over the last decade, type. As a result, the notion of a perpetual flexible pavement with a life of more than 50 years and great structural capacity has emerged. Perpetual flexible pavement has a direct competition with cement concrete-based rigid pavement. The comparison of life cycle cost (LCC) and life cycle environmental cost (LCEC) is an analytical method for determining the long-term viability of any pavement. This paper examine
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