Selection of External Coatings for Northern Pipelines: Laboratory Methodologies for Evaluation and Qualification of Coatings

2004 ◽  
Author(s):  
Sankara Papavinasam ◽  
R. Winston Revie ◽  
Michael Attard
Keyword(s):  
Standardized Tests ◽  
Protective Coatings ◽  
Climatic Conditions ◽  
Operational Conditions ◽  
The North ◽  
Long Term Performance ◽  
Term Performance ◽  
Near Future ◽  
Selection Of

In the near future, the construction of northern pipelines for transmission of natural gas will begin in North America. Construction in the harsh northern climate, with temperatures as low as −45°C, and remote location will impose unique challenges with respect to protective coatings. It is critical that the design of coatings be adequate to protect the pipelines under long-term, severe environmental conditions, including the extreme climatic conditions that will apply in the North before the pipe is installed and operation begins. There are many quality coatings from which to choose for application on new pipelines. The main issue is in understanding how to select and use coatings on pipelines in new regimes (e.g. Northern pipelines), which may operate in a different environment than do existing pipelines. Uniform, standardized tests that would simulate the conditions during construction and operation of Northern pipelines will allow external pipeline coatings to be selected with confidence regarding anticipated long-term performance under operational conditions. Selection of mainline coatings is important, but there is also a need to focus on field-applied coatings for both repairs and joints. Methodologies and standards that are available to evaluate coatings are reviewed in this paper.

scholarly journals Special Issue: “Coatings for Harsh Environments”

Coatings ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 407
Author(s):  
Shiladitya Paul
Keyword(s):  
Protective Coatings ◽  
Composite Coatings ◽  
Harsh Environments ◽  
Process Equipment ◽  
Special Issue ◽  
The World ◽  
Critical Components ◽  
Long Term Performance ◽  
Term Performance

The operation of numerous safety-critical components in industries around the world relies on protective coatings. These coatings often allow process equipment to be purposeful in environments well beyond the operational limit of the uncoated components. Durability, ease of application, repairability, reliability and long-term performance of such coatings are vital to their application. Therefore, this Special Issue of Coatings, “Coatings for Harsh Environments”, is devoted to research and review articles on the metallic, non-metallic and composite coatings used in aggressive environments.

Materials Research in Nuclear Waste Management: Reflections on Twenty-Five MRS Symposia

2002 ◽  
Vol 713 ◽  
Author(s):  
Rodney C. Ewing
Keyword(s):  
Waste Management ◽  
Nuclear Waste ◽  
Scientific Basis ◽  
Nuclear Waste Management ◽  
The Past ◽  
Materials Research ◽  
Long Term Performance ◽  
Term Performance ◽  
Selection Of

ABSTRACTThe MRS symposium, “Scientific Basis for Nuclear Waste Management” was first held in Boston, November 28th to December 1st, 1978. This symposium marks the twenty-fifth in a series that now rotate to meeting sites around the world. During the past 24 years, there has been considerable progress in the development and understanding of the behavior of materials that are used in the processing, transport, containment and disposal of radioactive waste. The design and selection of materials for long-term performance has required a uniquely interdisciplinary effort. Over the same period, there have been important developments in the regulatory framework that guides the scientific and engineering needs of nuclear waste management. This paper provides a subjective commentary on the major developments and innovations during the past 25 symposia. The future challenge will be the proper and constructive integration of the science into the development of nuclear waste disposal strategies.

Comprehensive Performance Evaluation of Multiscale Transportation Strategies: Large Metropolitan Planning Organization Methodology

2003 ◽  
Vol 1858 (1) ◽  
pp. 124-132 ◽  
Author(s):  
Brian J. Fineman ◽  
Anthony J. DeJohn ◽  
Keith E. Miller ◽  
Lois M. Goldman
Keyword(s):  
Long Range ◽  
Time Frame ◽  
Decision Makers ◽  
The North ◽  
Metropolitan Planning ◽  
Wide Range ◽  
Long Term Performance ◽  
Term Performance ◽  
Transportation Plan

Innovative structuring of the decision-making process has allowed a large metropolitan planning organization, the North Jersey Transportation Planning Authority (NJTPA), to face the challenge of cooperatively developing a long-range transportation investment agenda in a complex and diverse region. The wide range of applicable geographic scales is a problem when exploring alternative strategies in such a region, so a single, multiscaled, technically based planning analysis was designed and conducted to unify decision makers around a comprehensive set of performance goals and the estimated potential effects of all reasonable actions. The analysis, built within an accelerated 10-month time frame under federal scrutiny, relied on participation by elected officials, planners, engineers, and regional stakeholders. It produced a full regionwide identification of long-term performance needs and an exhaustive assessment and prioritization of location-specific strategies. NJTPA applied this prioritization to select strategies to update its long-range transportation plan and to develop specific immediate guidance for implementation agencies.

scholarly journals Long-term performance and life cycle assessment of energy piles in three different climatic conditions

2020 ◽  
Vol 146 ◽  
pp. 1177-1191 ◽  
Author(s):  
Melis Sutman ◽  
Gianluca Speranza ◽  
Alessio Ferrari ◽  
Pyrène Larrey-Lassalle ◽  
Lyesse Laloui
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Climatic Conditions ◽  
Energy Piles ◽  
Long Term Performance ◽  
Term Performance

scholarly journals Influence of Different Warm Mix Additives on Characteristics of Warm Mix Asphalt

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3534
Author(s):  
Anda Ligia Belc ◽  
Erdem Coleri ◽  
Florin Belc ◽  
Ciprian Costescu
Keyword(s):  
Asphalt Mixture ◽  
Warm Mix Asphalt ◽  
Organic Additive ◽  
Climatic Conditions ◽  
Organic Additives ◽  
Chemical Additive ◽  
Warm Mix Additives ◽  
Long Term Performance ◽  
Term Performance

The interest in minimising fuel consumption and greenhouse gas emissions among road specialists is increasing. Thus, methods for reducing asphalt concrete mixing and compaction temperatures by a few tens of degrees Celsius without compromising the long-term performance has become a topic of significant interest. This study is focused on the analysis of warm mix asphalt (WMA) prepared with locally available materials in order to determine the suitable technology applicable to the specific traffic and climatic conditions of Romania. WMA was prepared using different warm mix additives (organic additives, chemical additive, and synthetic zeolite) at different mixing and compaction temperatures, and bitumen blends with these additives were analysed by carrying out the dynamic shear rheometer test and evaluating the penetration index. In conclusion it was noted that most additives did not lead to a significant change of bitumen`s characteristics, but the organic additive had a big influence on the bitumen`s properties. The characteristics of WMA are very similar to those of HMA. The mixing and compaction temperatures could be reduced by approximately 40 °C when WMA was blended with the additives without compromising the performance of the asphalt mixture, compared to hot mix asphalt.

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