Evaluation of Long Term Behavior of Cold-recycled Asphalt Pavement Using the Creep Test PDF Download
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Author: Nicolas Faouzi Ayoub
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
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Book Description
Author: Nicolas Faouzi Ayoub
Publisher:
ISBN:
Category :
Languages : en
Pages : 158
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Book Description
Author: MS. Mamlouk
Publisher:
ISBN:
Category : Asphalt emulsions
Languages : en
Pages : 7
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Book Description
The recycling technique of asphalt pavement materials has been used in the past decade, however, unsolved problems still exist such as rutting or instability. The slow reaction of the softening agents or the new binders or both may be responsible for this phenomenon. The viscosity of the binder in the cold-recycled pavement materials mixed with emulsified asphalts is experimentally analyzed by evaluating certain rheological characteristics of the mixture using the creep test at three temperatures. The properties of the recycled mixture are determined at both early and accelerated long-term aging and the results are compared with the properties of virgin materials. Master creep curves are developed using the time-temperature superposition technique. The creep behavior of the recycled asphalt mixture used in this study does not support the hypothesis of the long-term reaction between the emulsified asphalt and the reclaimed materials. In addition, the bulk specific gravity and the retained moisture in the compacted recycled mixture were evaluated at various ages.
Author: Wade H. Shafer
Publisher: Springer Science & Business Media
ISBN: 1468449192
Category : Science
Languages : en
Pages : 314
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Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 28 (thesis year 1 983) a total of 10,661 theses titles from 26 Canadian and 197 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 28 reports theses submitted in-1983, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author:
Publisher:
ISBN:
Category : Materials
Languages : en
Pages : 950
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1368
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Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 760
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Author: Don Chen
Publisher:
ISBN:
Category : Pavements, Asphalt
Languages : en
Pages : 232
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Book Description
Cold in-place recycling (CIR) has become an attractive method for rehabilitating asphalt roads that have good subgrade support and are suffering distress related to non-structural aging and cracking of the pavement layer. Although CIR is widely used, its use could be expanded if its performance were more predictable. Transportation officials have observed roads that were recycled under similar circumstances perform very differently for no clear reason. Moreover, a rational mix design has not yet been developed, design assumptions regarding the structural support of the CIR layer remain empirical and conservative, and there is no clear understanding of the cause-effect relationships between the choices made during the design/construction process and the resulting performance. The objective of this project is to investigate these relationships, especially concerning the age of the recycled pavement, cumulative traffic volume, support conditions, aged engineering properties of the CIR materials, and road performance. Twenty-four CIR asphalt roads constructed in Iowa from 1986 to 2004 were studied: 18 were selected from a sample of roads studied in a previous research project (HR-392), and 6 were selected from newer CIR projects constructed after 1999. This report describes the results of comprehensive field and laboratory testing for these CIR asphalt roads. The results indicate that the modulus of the CIR layer and the air voids of the CIR asphalt binder were the most important factors affecting CIR pavement performance for high-traffic roads. For low-traffic roads, the wet indirect tensile strength significantly affected pavement performance. The results of this research can help identify changes that should be made with regard to design, material selection, and construction in order to improve the performance and cost-effectiveness of future recycled roads.
Author: Mary McLaughlin
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 188
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Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 884
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Author: Hosin David Lee
Publisher:
ISBN:
Category : Foamed materials
Languages : en
Pages : 116
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Book Description
This study evaluates one of the recycling techniques used to rehabilitate pavement, called Cold In-Place Recycling (CIR). CIR is one of the fastest growing road rehabilitation techniques because it is quick and cost-effective. The document reports on the current practice of CIR with emulsion, presents a literature review of research on foamed asphalt, discusses the foaming experiment, presents a field data collection and compaction study, and describes the determination of mix design parameters for CIR with foamed asphalt.
