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realtime density and thickness estimation of thin asphalt

realtime density and thickness estimation of thin asphalt

Real-Time Density and Thickness Estimation of Thin

高达12%返现  Jul 15, 2019  Achieving desired density is crucial for thin asphalt concrete (AC) overlay construction quality control and quality assurance purposes. Ground penetrating radar (GPR) can be implemented for AC pavement layer thickness and density prediction during compaction. However, the overlapping of GPR reflections from surface and bottom of the thin AC overlay, as well as the

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Real-Time Density and Thickness Estimation of Thin Asphalt ...

Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data Siqi Wang, Shan

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Surveys in Geophysics Volume 41, issue 3

Apr 01, 2020  Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data Authors. Siqi Wang; Shan Zhao; Imad L. Al-Qadi; Content type: ReviewPaper; Published: 15 July 2019; Pages: 431 - 445

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Algorithm development for real-time thin asphalt

Jun 01, 2019  Ground-penetrating radar (GPR) is an effective, feasible, and non-destructive tool for real-time estimation of the density of asphalt concrete (AC) during compaction. When the AC pavement is thin, however, it is difficult to estimate the density due to the limited GPR signal resolution.

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Real-Time Monitoring of Asphalt Concrete Pavement

Real-time asphalt concrete (AC) pavement density monitoring is important for quality control (QC) and quality assurance (QA) purposes, because it allows correction during the compaction process.

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Prediction of thin asphalt concrete overlay thickness and ...

Dec 01, 2018  It can be used on GPR signals reflected from thin AC overlays to estimate their thickness and density accurately. Compared to other super-resolution methods such as regularization, the nonlinear gradient descent method could be used on AC overlay less than 1 in. (25 mm) thick and can also be used to find the density of the AC overlay.

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Surveys in Geophysics Volume 41, issue 3

Apr 01, 2020  Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data Authors. Siqi Wang; Shan Zhao; Imad L. Al-Qadi; Content type: ReviewPaper; Published: 15 July 2019; Pages: 431 - 445

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Real-Time Monitoring of Asphalt Concrete Pavement Density ...

Apr 07, 2019  Zhao, S., Al-Qadi, I. L. Super-Resolution of 3-D GPR Signals to Estimate Thin Asphalt Overlay Thickness Using the XCMP Method. IEEE Transactions on Geoscience and Remote Sensing, Vol. 99, 2018 , pp. 1 – 9 .

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Algorithm development for real-time thin asphalt concrete ...

Algorithm development for real-time thin asphalt concrete overlay compaction monitoring using ground-penetrating radar ... (e.g., thickness and density estimation, defects detection and rebar ...

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Factors Impacting Monitoring Asphalt Pavement Density by ...

Oct 01, 2020  Real-time density and thickness estimation of thin asphalt pavement overlay during compaction using ground penetrating radar data Surv Geophys ( 2019 ) , pp. 1 - 15 2019

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FDTD Simulation for Moisture Asphalt Pavement Thickness ...

May 22, 2021  Ground penetrating radar (GPR) has the potential to estimate the thickness and density of asphalt pavement during compaction. However, the surface moisture sprayed by the compactor interferes with the accuracy of data collection significantly. This study proposed an approach based on the extended common midpoint (XCMP) method to minimize the effect of surface moisture. Both the

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DEVELOPMENT OF GPR DATA ANALYSIS ALGORITHMS FOR

the problem of thickness and density estimation for thin AC pavement overlay. 1.3 Objective The main objective of this research is to develop signal processing techniques that can increase the range resolution of GPR signals, allowing GPR to be used to predict the thickness and density of

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Homogeneity Assessment of Asphalt Concrete Base in Terms ...

Nov 17, 2021  Wang, S.Q.; Zhao, S.; Al-Qadi, I. Continuous real-time monitoring of flexible pavement layer density and thickness using ground penetrating radar. NDT E Int. 2018, 100, 48–54. [Google Scholar] Zhao, S.; Al-Qadi, I. Development of regularization methods on simulated ground-penetrating radar signals to predict thin asphalt overlay thickness.

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Development of regularization methods on simulated ground ...

The range resolution of ground-penetrating radar (GPR) signal is important in thin asphalt overlay thickness estimation. In this paper, regularized deconvolution is utilized to analyze simulated GPR signals to increase their range resolution. Four types of regularization methods, including Tikhonov regularization and total variation, were applied on noisy GPR signals; and their performance was ...

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Siqi Wang, PhD - Postdoctoral Researcher - The Hong Kong ...

Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data Surveys in Geophysics Jul 2019 See publication

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Real-Time Monitoring of Asphalt Concrete Pavement Density ...

Continuous density estimation by installing GPR on the roller is suggested to provide real-time compaction monitoring during the AC pavement construction process. AB - Accurate real-time density monitoring is crucial in quality control and quality assurance during the asphalt concrete (AC) pavement construction process.

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Imad Al-Qadi - Academia

Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data more by Imad Al

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Real-Time Monitoring of Asphalt Concrete Pavement Density ...

Real-Time Monitoring of Asphalt Concrete Pavement Density during Construction using Ground Penetrating Radar: Theory to Practice. 10 Pages. Real-Time Monitoring of Asphalt Concrete Pavement Density during Construction using Ground Penetrating Radar: Theory to Practice. Imad L . Al-Qadi. Download PDF. Download Full PDF Package. This paper. A ...

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11. Ground-Penetrating Radar Near-Surface Geophysics

Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data 15 July 2019 Surveys in Geophysics, Vol. 19 Understanding the use of ground-penetrating radar for assessing clandestine tunnel detection

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Quality Control in Civil Engineering Construction Based on ...

Nov 01, 2020  [1] Wang S, Zhao S and Al-Qadi I L 2020 Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data[J] Surveys in Geophysics 41 431-445 Go to reference in article Crossref Google Scholar [2] Thulasi B S and Unnikrishnan V 2018 Critical factors affecting construction material productivity[J] International Journal

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Asphalt Pavement Guide: Thickness EastCoat Pavement Services

Jan 12, 2018  Asphalt Thickness: Residential –. Asphalt driveways need to be a minimum of 2” thick and are typically 3” (compacted). Commercial –. The finish course of a parking lot, following the binder layer, should be a smaller and smoother stone at 1.5” thick for a total of 3”. For heavy duty traffic like, trucks, loading docks, or roadways ...

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Real-Time Monitoring of Asphalt Concrete Pavement Density ...

Continuous density estimation by installing GPR on the roller is suggested to provide real-time compaction monitoring during the AC pavement construction process. AB - Accurate real-time density monitoring is crucial in quality control and quality assurance during the asphalt concrete (AC) pavement construction process.

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‎Asphalt Calculator on the App Store

Asphalt Calculator is the fastest real-time calculator a asphalt that quickly convert between the imperial and the metric system’s units. Asphalt Calculator is the fastest real-time calculator a asphalt that quickly convert between the imperial and the metric system’s units for Width, Length, Thickness, Density, Area, Volume and Weight in real time and without any hassle.

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Guidance for Characterization of Existing Asphalt Pavement ...

• The presence of moisture in an asphalt pavement is a concern for stripping when there are frequent heavy loads applied.. • Sum programs for thickness design use a drainage Coefficient (Cd) . This impacts the structural number (SN) of a flexible pavement based on

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ASPHALT COMPACTION

Sep 19, 2016  The height of the hot asphalt layer should be enough to allow for its compaction rate. In the example above, the cold compacted layer is 50 mm (2") thick. The hot asphalt layer is laid 60 mm (2.4"). After compaction, the hot asphalt layer will match the height of the cold mat, assuming that the crew has correctly calculated the compaction rate.

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Sublayer-thickness inversion of asphalt layer from ground ...

A new technique for measuring the permittivity and sublayer thickness of asphalt layer from air-launched ground penetrating radar (GPR) data is presented. This technique involves three major steps: (1) estimation of the time delay of echoes by means of independent component analysis, (2) determination of the permittivity of each sublayer by pattern search method and (3) calculation of the ...

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Asphalt Layer Density and Air Voids Content: GPR and ...

To estimate asphalt layer density and air void content, GPR data were analysed using different existing mathematical models. To justify the reliability of the data measured by GPR, results were checked by comparing them with the results measured directly on cores taken from the asphalt pavement layers.

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11. Ground-Penetrating Radar Near-Surface Geophysics

Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data 15 July 2019 Surveys in Geophysics, Vol. 19 Understanding the use of ground-penetrating radar for assessing clandestine tunnel detection

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Supplement to Part 2 Pavement Structural Design of the ...

3.15.2 Asphalt or Concrete Surfaces Accepted 3.15.3 Open-graded Asphalt Accepted, with amendments 3.15.4 Surfacings in Tunnels Accepted 3.16 Pavement Widenings Accepted 3.17 Settlement New 3.18 Pavement Jointing Considerations New 3.19 Thickness of Bituminous Seals New 3.20 Temporary Pavements for High Traffic New

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Capacitance Sounding: a New Geophysical Method for Asphalt ...

An unknown thickness and permitivity are derived from a real-time 2D inversion of the data obtained. A portable laboratory device of EGOZA equipment has been designed and created. Asphalt layer thickness and the dielectric constant measurements were carried out on a high-traffic highway.

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Quality Control in Civil Engineering Construction Based on ...

Nov 01, 2020  [1] Wang S, Zhao S and Al-Qadi I L 2020 Real-Time Density and Thickness Estimation of Thin Asphalt Pavement Overlay During Compaction Using Ground Penetrating Radar Data[J] Surveys in Geophysics 41 431-445 Go to reference in article Crossref Google Scholar [2] Thulasi B S and Unnikrishnan V 2018 Critical factors affecting construction material productivity[J] International Journal

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Publications — Materials and Pavements

Prototype Needs Estimating and Project Ranking Software for the TxDOT PMS: 1918-1F: T. Scullion, C.H. Michalak, R.E. SmithNovember 1992: Influence of Asphalt Layering and Surface Treatments on Asphalt and Base Layer Thickness Computations Using Radar: 1923-1: K.R. Maser, T. ScullionSeptember 1992: Use of Radar Technology for Pavement Layer ...

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Application of regularized deconvolution technique for ...

Jul 01, 2015  In flexible pavement (asphalt pavement), GPR is used to detect free water , to estimate the dielectric property of pavement , and to estimate the thickness and density , , of asphalt pavement layer. The detailed procedure of applying GPR for subsurface

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FHW AITX-00/1702-5 USING GROUND-PENETRATING

and displays in real time a) the HMA surface dielectric, b) the base dielectric, and c) the surface thickness. For uniformly compacted HMA layers, the computed surface dielectric should be relatively constant; significant decreases have been found to be associated with high air void locations. The surface dielectric is related to the density of the

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