Detection Of Stripping In Hot Mix Asphalt
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Detection Of Stripping In Hot Mix Asphalt
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Author : Michael I. Hammons
language : en
Publisher:
Release Date : 2004
Detection Of Stripping In Hot Mix Asphalt written by Michael I. Hammons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Asphalt concrete categories.
Nondestructive Testing To Identify Delaminations Between Hma Layers
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Author : National Academies of Sciences, Engineering, and Medicine
language : en
Publisher: Transportation Research Board
Release Date : 2022
Nondestructive Testing To Identify Delaminations Between Hma Layers written by National Academies of Sciences, Engineering, and Medicine and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Social Science categories.
This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, describes development of nondestructive testing techniques that are capable of detecting and quantifying delaminations in HMA pavements. This NDT technique is applicable to construction, project design, and network-level assessments. This e-book contains 5 different volumes, the last 4 involving more technical descriptions of the project.
Evaluation Of A Laboratory Accelerated Stripping Simulator For Hot Mix Asphalt Mixes
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Author : Vernon Morgan Moore
language : en
Publisher:
Release Date : 2004
Evaluation Of A Laboratory Accelerated Stripping Simulator For Hot Mix Asphalt Mixes written by Vernon Morgan Moore and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Asphalt categories.
Moisture susceptibility of hot mix asphalt (HMA) pavements continues to be a major pavement distress. Past research has primarily focused on HMA stripping prevention through material component evaluation/testing and addition of preventative additives. Stripping is caused by traffic, water, and high in-place service temperatures. Today, agencies use various methods to evaluate HMA moisture susceptibility with varying degrees of success. The study objective was to evaluate a prototype stripping simulator's ability to predict HMA moisture susceptibility. The simulator evaluates moisture susceptibility by measuring conditioning water turbidity. Boil test and indirect tensile strength testing were also conducted for comparison purposes. Stripping simulator results indicate further refinement is required before it can be used for moisture susceptibility prediction.
Stripping Of Hot Mix Asphalt Pavements Under Chip Seals
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Author : Thomas J. Wood
language : en
Publisher:
Release Date : 2013
Stripping Of Hot Mix Asphalt Pavements Under Chip Seals written by Thomas J. Wood and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Pavements, Asphalt categories.
The higher costs of hot-mix asphalt pavement are causing more agencies to choose pavement preservation techniques to maintain their pavements. Some agencies have experienced stripping of the asphalt surface under chip seals, this distress appears to occur mostly in urban areas on curb and gutter streets. The main objective of the study was to determine what causes the stripping and to develop test methods to determine if the street will strip prior to placement of the chip seal. Both field and lab methods were used. Research focused on determining air voids, permeability, and density of the samples. Once these were determined, correlations were developed to determine the conclusions.
Nondestructive Testing Of Materials And Structures
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Author : Oral Büyüköztürk
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-09-09
Nondestructive Testing Of Materials And Structures written by Oral Büyüköztürk and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-09 with Technology & Engineering categories.
Condition assessment and characterization of materials and structures by means of nondestructive testing (NDT) methods is a priority need around the world to meet the challenges associated with the durability, maintenance, rehabilitation, retrofitting, renewal and health monitoring of new and existing infrastructures including historic monuments. Numerous NDT methods that make use of certain components of the electromagnetic and acoustic spectrum are currently in use to this effect with various levels of success and there is an intensive worldwide research effort aimed at improving the existing methods and developing new ones. The knowledge and information compiled in this book captures the current state of the art in NDT methods and their application to civil and other engineering materials and structures. Critical reviews and advanced interdisciplinary discussions by world-renowned researchers point to the capabilities and limitations of the currently used NDT methods and shed light on current and future research directions to overcome the challenges in their development and practical use. In this respect, the contents of this book will equally benefit practicing engineers and researchers who take part in characterization, assessment and health monitoring of materials and structures.
Ndt Technology For Quality Assurance Of Hma Pavement Construction
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Author : Harold L. Von Quintus
language : en
Publisher: Transportation Research Board
Release Date : 2009
Ndt Technology For Quality Assurance Of Hma Pavement Construction written by Harold L. Von Quintus and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Nondestructive testing categories.
At head of title: National Cooperative Highway Research Program
Estimation Of Stripping By Static Immersion Test Using Image Processing And Machine Learning
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Author : Ashkan Sahari Moghaddam
language : en
Publisher:
Release Date : 2019
Estimation Of Stripping By Static Immersion Test Using Image Processing And Machine Learning written by Ashkan Sahari Moghaddam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Hot Mixed Asphalt (HMA) is one of the most common types of pavement, which exists on the surface of the roads, inside and outside of cities. One of the main destresses in HMA is moisture-related damage, which mainly occurs in the form of stripping. The process of losing adhesion and cohesion of asphalt cement due to the presence of moisture and cyclic loads is called "stripping". Several test procedures have been designed and conducted on different types of asphaltic mixtures to identify and measure moisture damages, especially stripping. Stripping evaluations could be divided into two classes: tests on compacted mixtures and tests on loose mixtures. Test procedures for loose mixture have been adopted by different highway agencies, such as the Ministry of Transportation Ontario (MTO), and pavement industries, because they are easy to perform, cost-effective, and do not require complex equipment. But since stripping estimation is based on visual assessment, the results could be inconsistent when they are estimated by inexperienced operators. One of the most common tests on loose mixtures is static immersion test, and a modified version of the static immersion test has been used by MTO, listed as LS-285 R29. To evaluate stripping in this test procedure, 104g of loose asphaltic mixture should be immersed inside water for 24 hours and then the retained coating areas should be measured by a skilled technician as a percentage of the total surface area. Image processing methods are proper examples of using smart agents in visual assessment problems, such as object detection and pattern recognition. In this research, a vision-based algorithm and a low-cost light improvement system were developed as an alternative for manual judgment. The system receives images of samples captured in a controlled lighting condition, which is called illumination box, and then it applies Contrast Limited Adaptive Histogram Equalization to enhance contrast intensity of the image. In addition, the system uses inpainting to reconstruct specular highlights in the image, and then classifies the regions on the image, i.e. coated and stripped areas, using combinations of K-means clustering and K-Nearest Neighbors and Support Vector Machines classifiers. The developed system is able to overcome most of the shortcomings of prior methods, such as evaluation of the stripping on mixtures with dark-colour aggregates and processing test images without alteration of the test samples. The differences of the results in the best configuration of classifiers from manual estimations had the mean of 4.8 % and the standard deviation of 5.2 %. Moreover, application of illumination box and contrast enhancement module proved to be effective to improve the performance of this system.
Evaluation Of A Laboratory Accelerated Stripping Simulator For Hot Mix Asphalt Mixes
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Author :
language : en
Publisher:
Release Date : 2004
Evaluation Of A Laboratory Accelerated Stripping Simulator For Hot Mix Asphalt Mixes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Moisture susceptibility of hot mix asphalt (HMA) pavements continues to be a major pavement distress. Past research has primarily focused on HMA stripping prevention through material component evaluation/testing and addition of preventative additives. Stripping is caused by traffic, water, and high in-place service temperatures. Today, agencies use various methods to evaluate HMA moisture susceptibility with varying degrees of success. The study objective was to evaluate a prototype stripping simulator?s ability to predict HMA moisture susceptibility. The simulator evaluates moisture susceptibility by measuring conditioning water turbidity. Boil test and indirect tensile strength testing were also conducted for comparison purposes. Stripping simulator results indicate further refinement is required before it can be used for moisture susceptibility prediction.
Segregation In Hot Mix Asphalt Pavements
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Author : Mary Stroup-Gardiner
language : en
Publisher: Transportation Research Board
Release Date : 2000
Segregation In Hot Mix Asphalt Pavements written by Mary Stroup-Gardiner and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Asphalt categories.
Detecting Stripping In Asphalt Concrete Layers Using Ground Penetrating Radar
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Author :
language : en
Publisher:
Release Date : 1997
Detecting Stripping In Asphalt Concrete Layers Using Ground Penetrating Radar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Ground penetrating radar categories.