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A Study Of Some Of The Factors Affecting The Measurement Of Soil Resistivity For Cathodic Protection Applications Microform
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Book Synopsis A Study of Some of the Factors Affecting the Measurement of Soil Resistivity for Cathodic Protection Applications [microform] by : Kashmir Singh Gill
Download or read book A Study of Some of the Factors Affecting the Measurement of Soil Resistivity for Cathodic Protection Applications [microform] written by Kashmir Singh Gill and published by National Library of Canada. This book was released on 1983 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadiana written by and published by . This book was released on 1986 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cathodic Protection Field Testing by :
Download or read book Cathodic Protection Field Testing written by and published by . This book was released on 1999 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Laboratory Investigation of Factors Influencing the Electrical Resistivity of Different Soil Types by : Behdad Mofarraj Kouchaki
Download or read book A Laboratory Investigation of Factors Influencing the Electrical Resistivity of Different Soil Types written by Behdad Mofarraj Kouchaki and published by . This book was released on 2019 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field-based electrical resistivity methods offer a nondestructive and rapid means to collect continuous subsurface data. As such, these types of geophysical methods are becoming increasingly popular tools for geotechnical engineers; however, it is challenging to derive geotechnical information, such as soil type, density, and water content, from the field measurements. Laboratory-based soil-box resistivity tests, such as AASHTO T 288-12, Standard Method of Test for Determining Minimum Laboratory Soil Resistivity, are also being used to examine the electrical resistivity of soils; however, it is unclear how density and a number of other factors may affect the results. A laboratory geophysical investigation was carried out to gain a better understanding of the parameters that affect the electrical resistivity of soils and to improve estimates of soil group classifications based on resistivity measurements. Nine different benchmark soils were tested, representing most of the major soil groups according to the unified soil classification system. The effects of water mineralization, water content, degree of saturation, density, and temperature on the measured electrical resistivity of the soils were investigated. The parameters that were found to be most effective in the identification of soil type are bulk density and degree of saturation. While the general trend between saturation and resistivity is known, results indicate that resistivity values reach a lower threshold at around 60 % saturation and that density and water mineralization become less influential as the saturation increases above this threshold. Regardless of the density or saturation, temperature was found to be an important parameter and should be monitored and corrected for in laboratory tests such as AASHTO T 288-12 when results are compared to field data. The influence of particle size and obtaining representative specimens in laboratory soil box testing were also shown to be important.
Book Synopsis Standard Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-electrode Method by :
Download or read book Standard Test Method for Field Measurement of Soil Resistivity Using the Wenner Four-electrode Method written by and published by . This book was released on 2012 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurement of soil resistivity is used for the control of corrosion of buried structures. Soil resistivity is used both for the estimation of expected corrosion rates and for the design of cathodic protection systems. As an essential design parameter for cathodic protection systems, it is important to take as many measurements as necessary so as to get a sufficiently representative characterization of the soil environment that the entire buried structure will experience.
Book Synopsis Soil Properties Affecting Corrosion and Cathodic Protection of Steel in Texas Soils by : Terry J. Moore
Download or read book Soil Properties Affecting Corrosion and Cathodic Protection of Steel in Texas Soils written by Terry J. Moore and published by . This book was released on 1985 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cathodic Protection Measurement Through Inline Inspection Technology Uses and Observations by : Briana Ley Ferguson
Download or read book Cathodic Protection Measurement Through Inline Inspection Technology Uses and Observations written by Briana Ley Ferguson and published by . This book was released on 2017 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This research supports the evaluation of an impressed current cathodic protection (CP) system of a buried coated steel pipeline through alternative technology and methods, via an inline inspection device (ILI, CP ILI tool, or tool), in order to prevent and mitigate external corrosion. This thesis investigates the ability to measure the current density of a pipeline's CP system from inside of a pipeline rather than manually from outside, and then convert that CP ILI tool reading into a pipe-to-soil potential as required by regulations and standards. This was demonstrated through a mathematical model that utilizes applications of Ohm's Law, circuit concepts, and attenuation principles in order to match the results of the ILI sample data by varying parameters of the model (i.e., values for over potential and coating resistivity). This research has not been conducted previously in order to determine if the protected potential range can be achieved with respect to the predicted current density from the CP ILI device. Kirchhoff's method was explored, but certain principals could not be used in the model as manual measurements were required. This research was based on circuit concepts which indirectly affected electrochemical processes. Through Ohm's law, the results show that a constant current density is possible in the protected potential range; therefore, indicates polarization of the pipeline, which leads to calcareous deposit development with respect to electrochemistry. Calcareous deposit is desirable in industry since it increases the resistance of the pipeline coating and lowers current, thus slowing the oxygen diffusion process. This research conveys that an alternative method for CP evaluation from inside of the pipeline is possible where the pipe-to-soil potential can be estimated (as required by regulations) from the ILI tool's current density measurement"--Abstract, page iii.
Book Synopsis Monitoring for Gaseous Pollutants in Museum Environments by : Cecily M. Grzywacz
Download or read book Monitoring for Gaseous Pollutants in Museum Environments written by Cecily M. Grzywacz and published by Getty Publications. This book was released on 2006-09-01 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an emphasis on passive sampling, this volume focuses on the environmental monitoring for common gaseous pollutants. It offers an overview of the history and nature of pollutants of concern to museums and the challenges facing scientists, conservators, and managers seeking to develop target pollutant guidelines to protect cultural property.
Book Synopsis Handbook of Hot-dip Galvanization by : Peter Maaß
Download or read book Handbook of Hot-dip Galvanization written by Peter Maaß and published by John Wiley & Sons. This book was released on 2011-03-31 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hot-dip galvanization is a method for coating steel workpieces with a protective zinc film to enhance the corrosion resistance and to improve the mechanical material properties. Hot-dip galvanized steel is the material of choice underlying many modern buildings and constructions, such as train stations, bridges and metal domes. Based on the successful German version, this edition has been adapted to include international standards, regulations and best practices. The book systematically covers all steps in hot-dip galvanization: surface pre-treatment, process and systems technology, environmental issues, and quality management. As a result, the reader finds the fundamentals as well as the most important aspects of process technology and technical equipment, alongside contributions on workpiece requirements for optimal galvanization results and methods for applying additional protective coatings to the galvanized pieces. With over 200 illustrated examples, step-by-step instructions, presentations and reference tables, this is essential reading for apprentices and professionals alike.
Book Synopsis Petroleum Abstracts. Literature and Patents by :
Download or read book Petroleum Abstracts. Literature and Patents written by and published by . This book was released on 1981 with total page 1538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rapid Visual Screening of Buildings for Potential Seismic Hazards: Supporting Documentation by :
Download or read book Rapid Visual Screening of Buildings for Potential Seismic Hazards: Supporting Documentation written by and published by Government Printing Office. This book was released on 2015 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rapid Visual Screening (RVS) handbook can be used by trained personnel to identify, inventory, and screen buildings that are potentially seismically vulnerable. The RVS procedure comprises a method and several forms that help users to quickly identify, inventory, and score buildings according to their risk of collapse if hit by major earthquakes. The RVS handbook describes how to identify the structural type and key weakness characteristics, how to complete the screening forms, and how to manage a successful RVS program.
Book Synopsis Between Two Earthquakes by : Sir Bernard M. Feilden
Download or read book Between Two Earthquakes written by Sir Bernard M. Feilden and published by Getty Publications. This book was released on 1987-10-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook addresses three areas of concern for the museum administrator concerning the protection of historic buildings, monuments, and archaeological sites located in seismic areas. It proposes pre-disaster measures such as taking accurate and complete documentation (photogrammetry is discussed in one of the 13 appendixes), risk awareness, planning, maintenance and inspections, etc. Second, when an earthquake strikes, the immediate emergency steps necessary to protect life and property are indicated; and after the earthquake, the strengthening of valuable cultural property (based on the Modified Mercalli Intensity Scale, also in an appendix) should be included in the general program of prevention maintenance along with the repairs discussed in detail applicable to each architectural element, and to the site as a whole.
Download or read book Bacterial Biofilms written by Tony Romeo and published by Springer Science & Business Media. This book was released on 2008-02-26 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the biological world, bacteria thrive predominantly in surface-attached, matrix-enclosed, multicellular communities or biofilms, as opposed to isolated planktonic cells. This choice of lifestyle is not trivial, as it involves major shifts in the use of genetic information and cellular energy, and has profound consequences for bacterial physiology and survival. Growth within a biofilm can thwart immune function and antibiotic therapy and thereby complicate the treatment of infectious diseases, especially chronic and foreign device-associated infections. Modern studies of many important biofilms have advanced well beyond the descriptive stage, and have begun to provide molecular details of the structural, biochemical, and genetic processes that drive biofilm formation and its dispersion. There is much diversity in the details of biofilm development among various species, but there are also commonalities. In most species, environmental and nutritional conditions greatly influence biofilm development. Similar kinds of adhesive molecules often promote biofilm formation in diverse species. Signaling and regulatory processes that drive biofilm development are often conserved, especially among related bacteria. Knowledge of such processes holds great promise for efforts to control biofilm growth and combat biofilm-associated infections. This volume focuses on the biology of biofilms that affect human disease, although it is by no means comprehensive. It opens with chapters that provide the reader with current perspectives on biofilm development, physiology, environmental, and regulatory effects, the role of quorum sensing, and resistance/phenotypic persistence to antimicrobial agents during biofilm growth.
Book Synopsis Airframe and Powerplant Mechanics Airframe Handbook by : United States. Flight Standards Service
Download or read book Airframe and Powerplant Mechanics Airframe Handbook written by United States. Flight Standards Service and published by . This book was released on 1976 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis China & Asia (exclusive of Near East) by : United States. Joint Publications Research Service
Download or read book China & Asia (exclusive of Near East) written by United States. Joint Publications Research Service and published by . This book was released on 1965 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guide to contents of a collection of United States Joint Publications Research Service translations in the social sciences emanating from Communist China.
Book Synopsis Handbook of Occupational Groups and Families by :
Download or read book Handbook of Occupational Groups and Families written by and published by . This book was released on 1998 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Century of Innovation by : 3M Company
Download or read book A Century of Innovation written by 3M Company and published by 3m Company. This book was released on 2002 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: A compilation of 3M voices, memories, facts and experiences from the company's first 100 years.
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