Quick heating method of asphalt pavement in hot in
To improve the heating rate of asphalt pavement in Hot In-Place Recycling (HIR), a quick heating method was proposed. Considering input heat flux, the Characterization of microwave heating efficiency of asphalt materials at the laboratory. This section presents an overview of the methods and studies for the Microwave heating of asphalt paving materials: Principles,
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Quick heating method of asphalt pavement in hot in-place
To improve the heating rate of asphalt pavement in Hot In-Place Recycling (HIR), a quick heating method was proposed. Considering input heat flux, the Yu-Shan and Shakiba explored the performance of asphalt pavement under different asphalt concrete and base thicknesses, base and subgrade permeability, Performance Evaluation and Structure Optimization of Low
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Asphalt Pavements an overview ScienceDirect Topics
Asphalt Chemistry. James G. Speight PhD, DSC, in Asphalt Materials Science and Technology, 2016 Abstract. Asphalt pavements vary in longevity because of the various 10.1177/03611981231164066 Authors: Xiao Chen Rutgers, The State University of New Jersey Hao Wang Rutgers, The State University of New Jersey Giri Asphalt Pavement Pothole Repair Using the Pre-Heating Method:
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Recycling Asphalt Pavements: The State of Practice
Millions of miles of paved roads in the world need rehab, maintenance, and upkeep. To sustain this effort, pavement engineers are challenged to find innovative ways to maintain the roads in an 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 systemsIntegration of non-destructive testing methods to assess asphalt
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Carbon-Emission calculation method during operation period
The research results are expected to bridge the gap in carbon emission measurement at the operation stage of asphalt pavement, which is of great significance for the realization of environmentally friendly asphalt pavement applications and corresponding whole life cycle management. 2. Modeling ideas and test scheme2.1. Modeling ideasE3S Web of Conferences * Corresponding author: weiling_happy@126 Evaluation Index for Preventive Maintenance of Highway Asphalt Pavement Weiling Teng1*, Xiaofang Li1 1College of Civil Engineering, Xijing University, Xi 'an, Shaanxi Abstract. In order to make the decision of preventive main tenance of asphalt pavement, this paper Evaluation Index for Preventive Maintenance of Highway Asphalt Pavement
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PDNet: Improved YOLOv5 Nondeformable Disease Detection
In the daily inspection task of the expressway, accuracy and speed are the two most important indexes to reflect the detection efficiency of nondeformation diseases of asphalt pavement. To achieve model compression, accelerated detection, and accurate identification under multiscale conditions, a lightweight algorithm (PDNet) based on Rutting prediction model for semi-rigid base asphalt pavement based on a data-mechanistic dual driven method February 2023 International Journal of Pavement Engineering(PDF) Rutting prediction model for semi-rigid base asphalt pavement
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Retracted: Pavement Performance Evaluation of Asphalt
Asphalt pavement performance is the main reference index of road operation and maintenance, so it is necessary to ensure that the evaluation results are in line with the actual situation of the road and guarantee the authenticity, validity, and objectivity of the data. When extracting asphalt pavement data, it is necessary to make reasonableThe yard emissions, namely the emission after load-out phase, usually last for 8 min. The average emission rate was 0.19 lb/hr of TOC. The TOC emissions for the 8-minute period immediately following load-out (yard emissions) can be estimated using an emission factor of 0.00055 kg/Mg (0.0011 lb/ton) of asphalt loaded.Estimating VOC Emissions from Asphalt Pavement SpringerLink
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An Interval Parameter Calculation Method of Asphalt Pavement
In the asphalt pavement structure design method, the structural analysis and design are generally performed in the form of point values. However, determining the point value form of design parameters based on the statistical analysis theory cannot fully reflect the complex properties such as variability and uncertainty of parameters. In order For quantifying the energy consumption and carbon emission of maintenance activities during the asphalt pavement operation phase, a calculation method based on the life cycle assessment (2004). “A quantitative method to the assessment of the life cycle embodied environmental profile of building materials.” Environmental Impacts of Different Maintenance and
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Quick heating method of asphalt pavement in hot in-place recycling
OCHM and RIHM are both constant flux heating methods (CFHMs). In OCHM as shown in Fig. 6, the asphalt pavement is continuously heated with a constant flux of 5 × 10 3 W/m 2, which can keep the surface temperature at 180 °C at the end of the heating procedure (the bottom temperature of the upper layer is 100 °C).In order to better evaluate the construction quality of asphalt pavement, nondestructive testing techniques are used to inspect newly paved asphalt mixture pavement. The proposed system for the Coatings Free Full-Text Research on the Quality of
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A Novel Evaluation Method of Construction
To effectively evaluate the construction homogeneity of asphalt pavement, the tomography image of a core sample of asphalt pavement was obtained via industrial computed tomography (CT) This study predicts asphalt pavement responses from surface deflections under falling weight deflectometer (FWD) loading using soft computing methods.(PDF) Prediction of Asphalt Pavement Responses from FWD
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Research on Characterization of Asphalt Pavement Performance
Under the action of long-term service and external environment, asphalt pavement will have a variety of complex damage and destruction, affecting its service function and life. The biggest advantage of acoustic emission (AE) technology is that it can characterize and analyze the whole process of material damage and failure from the A numerical simulation model of hot air heating asphalt pavement was established and verified experimentally to optimize the hot air parameters of hot in-place recycling (HIR) and to improve the heating effect. The response surface method (RSM) was used to study the influence of hot air heating parameters on the heating effect of asphalt Study on the Interaction of Hot Air Heating Parameters for Asphalt
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Experimental Study on Structural Mechanics of Asphalt Pavement
The experiments on the structural mechanics of asphalt pavement were carried out by the digital speckle correlation method (DSCM). The digital speckle correlation method is used to collect experimental data. The displacement and strain values of each layer of the asphalt pavement structure are analyzed. The research showed that (1) the The scientists set out to develop a new method to assess the rate of deterioration in concrete. The current method is based on the width of surface cracks in concrete and a simple chemical testCauses of concrete and asphalt deterioration explained Phys
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Hybrid Method: Automatic Crack Detection of Asphalt Pavement
Pavement distress is a major contributor to overall road quality degradation. Maintaining roadways with the use of a Pavement Management System requires an extensive and up-to-date inventory of the many types of roadway distress. Such inventory for a road network can be labor-intensive and time-consuming to create. This A quantitative evaluation was conducted on the energy consumption and carbon emissions during the asphalt pavement regeneration process, and the energy consumption and emission ratios during the construction and raw material production stages of the cold and hot regeneration process were obtained. This study applies the theory of Buildings Free Full-Text Energy Consumption and Carbon
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