Asphalt Mixture Segregation Detection: Digital Image Processing Approach

Baqersad, Mohamadtaqi; Hamedi, Amirmasoud; Mohammadafzali, Mojtaba; Ali, Hesham

doi:10.1155/2017/9493408

Cited by 42 publications

(8 citation statements)

References 15 publications

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“…e correlation between resilient modulus at both 5°C and 25°C and R 100, had a regression coefficient more than 0.97. (1) and mixture test outputs obtained in this research, it is promising to develop a phenomenological relation between characteristics of the binder and mixture using more extensive data and considering important parameters, in future research, so more time and materials are saved using binder tests instead of the mixture tests. …”

Section: 7mentioning

confidence: 88%

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Studying Engineering Characteristics of Asphalt Binder and Mixture Modified by Nanosilica and Estimating Their Correlations

Hasaninia

Haddadi

2018

Advances in Materials Science and Engineering

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e objective of this research was to investigate rutting and fatigue distresses in asphalt containing 2, 4, 6, and 8 percent of nanosilica (NC) and to find out the correlation between engineering properties of the modified binder and mixture asphalt. In order to study the effect of NC on the rutting and fatigue properties of modified binders, the multiple stress creep recovery (MSCR) and linear amplitude sweep (LAS) tests were carried out. e Marshall stability, dynamic creep, and four-point bending beam fatigue tests were used to evaluate performance characteristics of the mixtures. e binder and mixture tests all indicated an improvement of fatigue and rutting resistance using NC as a modifier. Furthermore, some statistical correlations between engineering properties were developed successfully.

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Section: 7mentioning

confidence: 88%

“…For instance, binder with enough adhesion and cohesion can significantly hinder the segregation and separation of aggregates from the pavement surface [1]. In order to improve the behavior of asphalt binder at different temperatures, many types of additives have been used.…”

Section: Introductionmentioning

confidence: 99%

Studying Engineering Characteristics of Asphalt Binder and Mixture Modified by Nanosilica and Estimating Their Correlations

Hasaninia

Haddadi

2018

Advances in Materials Science and Engineering

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“…Pavement preservation also has been used to improve wear resistance, build sufficient surface, prevent separation of asphalt aggregate from the asphalt surface, and make the pavement impervious to water influx [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Pavement Manager at Risk in Construction of Hot Mix Asphalt

Ali

Baqersad

2018

Advances in Civil Engineering

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Pavement management is part science, part management, and part experience. After several decades of promoting pavement management, many road owners are still reluctant to use it as they lack the knowledge, the experience, or the confidence. The problem is further complicated by the emergence of a large list of new products and techniques that are self-proclaimed to achieve miracles but fall short. The outcome of this arrangement is that thousands of miles of roads still cost more to maintain than if effective pavement preservation techniques were used. This paper attempts to resolve this dilemma by introducing the role of Pavement Manager at Risk (PMAR), allowing a Pavement Manager to offer a long-term pavement preservation service to a client in return for a fixed per-mile premium. This allows the knowledgeable Pavement Manager, who would typically be a Pavement Engineer or a practitioner with extensive knowledge and experience, to implement effective pavement preservation techniques and share the economic benefit with the owner. In this study, the responsibilities of the Pavement Manager at Risk (PMAR) will be introduced. The type of analysis it needs to run will be demonstrated in a case study. In this paper, a sample analysis is presented to present the financial aspects of managing a network of local roads. Pavement treatment cost, pavement condition, and treatment life extension in addition to the admin, mobilization, striping, and occasional patches expenses are presented. The benefits and risks of this approach are described.

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“…It was concluded from a series of shear modulus master curves that using recycling agents in mixtures containing RAP improves fatigue cracking resistance without adversely affecting rutting resistance. Also, it has been showed that the use of an excessively aged binder in recycled mixtures can also lead to segregation problems due to a reduction in binder's adhesion [13].…”

Section: Introductionmentioning

confidence: 99%

Aging of Rejuvenated Asphalt Binders

Mohammadafzali¹,

Ali²,

Musselman³

et al. 2017

Advances in Materials Science and Engineering

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An important concern that limits the RAP content in asphalt mixtures is the fact that the aged binder that is present in the RAP can cause premature cracking. Rejuvenators are frequently added to high RAP mixtures to enhance the properties of the binder. There is no existing method to predict the longevity of a rejuvenated asphalt. This study investigated the aging of rejuvenated binders and compared their durability with that of virgin asphalt. Various samples with different types and proportions of RAP, virgin binder, and rejuvenator were aged by RTFO and three cycles of PAV. DSR and BBR tests were conducted to examine the high-temperature and low-temperature rheological properties of binders. Results indicated that the type and dosage of the rejuvenator have a great influence on the aging rate and durability of the binder. Some rejuvenators make the binder age slower, while others accelerate aging. These observations confirm the importance of evaluating the long-term aging of recycled binders. For this purpose, critical PAV time was proposed as a measure of binder’s longevity.

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Asphalt Mixture Segregation Detection: Digital Image Processing Approach

Cited by 42 publications

References 15 publications

Studying Engineering Characteristics of Asphalt Binder and Mixture Modified by Nanosilica and Estimating Their Correlations

Studying Engineering Characteristics of Asphalt Binder and Mixture Modified by Nanosilica and Estimating Their Correlations

Pavement Manager at Risk in Construction of Hot Mix Asphalt

Aging of Rejuvenated Asphalt Binders

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