Surface Energy Characteristics of Granite and Limestone Aggregates with Respect to 2D and 3D Surface Roughness Measurements

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ISBN 13 :
Total Pages : 101 pages
Book Rating : 4.:/5 (95 download)

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Book Synopsis Surface Energy Characteristics of Granite and Limestone Aggregates with Respect to 2D and 3D Surface Roughness Measurements by : Anjana Thoroppady Kittu

Download or read book Surface Energy Characteristics of Granite and Limestone Aggregates with Respect to 2D and 3D Surface Roughness Measurements written by Anjana Thoroppady Kittu and published by . This book was released on 2013 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface energy properties of aggregates and asphalt binders can be used to select appropriate aggregate and asphalt binder combinations for the construction of moisture durable pavements. Sessile drop device is an effective method to determine the surface properties of aggregates and asphalt binders by performing direct contact angle measurements. However, the variations in surface roughness could impact the contact angle formed on the aggregate surface. Therefore, the present study was intended to evaluate the contact angle measurements on aggregate surfaces at different levels of surface roughness using the sessile drop device. Large size granite and limestone rock specimens were obtained and cut into appropriate sizes to create flat surfaces for contact angle measurements. The samples were subjected to a series of polishing stages using different particle sizes of silicon carbide and aluminum oxide grits. Contact angle measurements were subsequently conducted using three probe liquids on the unpolished surface as well as on the specimens subjected to different levels of polishing. Surface roughness measurements were also performed after each polishing stage using a two-dimensional profilometer and a three dimensional optical profilometer. The surface roughness decreased as the polishing progressed. The results from this study showed that as the surface became smoother, the values of contact angles formed by the probe liquids decreased, and attained consistent values after polishing with silicon carbide 1000 grit. The surface energy components also showed consistent results from the silicon carbide 1000 polishing stage onwards. Present results imply that initial polishing of aggregate surface is required to obtain consistent results from the sessile drop device. Correlation between two methods of measurements of surface roughness indicates that both methods could be useful for measurement of rock samples. Once the surface roughness is standardized to obtain representative contact angle, the sessile drop device can be used to compare different aggregates and select appropriate aggregate-asphalt binder combination for the construction of durable pavements. The surface energy results obtained from the contact angle measurements were used to evaluate the energy ratio and the compatibility ratio parameters for moisture damage potential of the two aggregate-binder combinations along with PG 64-22 neat binder. The results obtained indicate that ER and CR could be used as power tools for material selection.

Evaluate the Simple Surface Energy of Aggregates Using the Capillary Rise Method

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ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (125 download)

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Book Synopsis Evaluate the Simple Surface Energy of Aggregates Using the Capillary Rise Method by : Dennis Sinkonde

Download or read book Evaluate the Simple Surface Energy of Aggregates Using the Capillary Rise Method written by Dennis Sinkonde and published by . This book was released on 2007 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes the evaluation of surface energy of two types of aggregates, a limestone and granite, using the capillary rise method. The capillary rise method is a simple method that can successfully be used to determine the surface energy of powders. Contact angle measurements were performed using the capillary rise method and, thereafter, surface energy of aggregates was determined using the Young-Dupré equation. The results of the experiment indicate that limestone had a slightly higher surface energy compared to granite. The two aggregates had almost equal apolar components of the surface energy whilst the polar components were quite different.

Strength and Deformation Properties of Granite, Basalt, Limestone, and Tuff at Various Loading Rates

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ISBN 13 :
Total Pages : 186 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Strength and Deformation Properties of Granite, Basalt, Limestone, and Tuff at Various Loading Rates by : Richard L. Stowe

Download or read book Strength and Deformation Properties of Granite, Basalt, Limestone, and Tuff at Various Loading Rates written by Richard L. Stowe and published by . This book was released on 1969 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Adhesion and the Surface Energy Components of Natural Minerals and Aggregates

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (761 download)

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Book Synopsis Adhesion and the Surface Energy Components of Natural Minerals and Aggregates by : Clint Matthew Miller

Download or read book Adhesion and the Surface Energy Components of Natural Minerals and Aggregates written by Clint Matthew Miller and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A range of geochemical reactions are controlled by the interfacial characteristics of rocks and minerals. Many engineered and natural systems are affected by geochemical reactions that occur at interfaces. Asphalt-aggregate adhesion in road construction is influenced by the interfacial characteristics of the aggregate. Likewise, the remediation of nonaqueous-phase liquid contaminants, such as trichloroethylene or methyl tert-butyl ether, is controlled by the interactions between mineral surfaces and the organic liquid. Many natural systems are also influenced by reactions at interfaces. The migration of petroleum in sedimentary basins is influenced by the wettability of the surfaces of the basin pore space. Adhesion of organisms, such as bacteria or lichens, to rock surfaces is controlled by the interactions of proteins and mineral surfaces. Rock and mineral surfaces are described by surface energy. Surface energy is a thermodynamic construct defined as the amount of work required to form more of a surface. Surface energy can be divided into van der Waals, Lewis acid, and Lewis base components. The ability to predict the magnitude of surface energy components is valuable in understanding species behavior. Surface energy is controlled by three master variables: surface chemistry, surface morphology, and surface coatings. While the surface energy of a number of minerals and aggregates has been characterized, there has not yet been a comprehensive study of the surface energies of a variety of the most common minerals and aggregates using consistent methodology. In addition there has not yet been a study of the effect of these three master variables on surface energies of natural minerals and rocks. This study measured the surface energy of 22 common minerals and 7 aggregates. The samples' bulk and surface chemistries were characterized with wavelength and energy dispersive spectra analyses on an electron microprobe and x-ray photoelectron spectroscopy. The XPS was also used to quantify the organic and inorganic coatings on the surfaces. Results showed that van der Waals surface energy is typically between 40 and 60 ergs/cm2. Polar surface energy varies by 1 to 3 orders of magnitude, and thus is likely the most important component in accounting for changes between natural minerals.

The Aggregates Handbook, Second Edition

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ISBN 13 : 9780988995000
Total Pages : pages
Book Rating : 4.9/5 (95 download)

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Book Synopsis The Aggregates Handbook, Second Edition by : National Stone, Sand & Gravel Association

Download or read book The Aggregates Handbook, Second Edition written by National Stone, Sand & Gravel Association and published by . This book was released on 2013-03-20 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rock Fractures and Fluid Flow

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Publisher : National Academies Press
ISBN 13 : 0309049962
Total Pages : 568 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Rock Fractures and Fluid Flow by : National Research Council

Download or read book Rock Fractures and Fluid Flow written by National Research Council and published by National Academies Press. This book was released on 1996-08-27 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific understanding of fluid flow in rock fracturesâ€"a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storageâ€"has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of the field, with an interdisciplinary viewpoint, case studies of fracture sites, illustrations, conclusions, and research recommendations. The book addresses these questions: How can fractures that are significant hydraulic conductors be identified, located, and characterized? How do flow and transport occur in fracture systems? How can changes in fracture systems be predicted and controlled? Among other topics, the committee provides a geomechanical understanding of fracture formation, reviews methods for detecting subsurface fractures, and looks at the use of hydraulic and tracer tests to investigate fluid flow. The volume examines the state of conceptual and mathematical modeling, and it provides a useful framework for understanding the complexity of fracture changes that occur during fluid pumping and other engineering practices. With a practical and multidisciplinary outlook, this volume will be welcomed by geologists, petroleum geologists, geoengineers, geophysicists, hydrologists, researchers, educators and students in these fields, and public officials involved in geological projects.

Modeling and Design of Flexible Pavements and Materials

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Publisher : Springer
ISBN 13 : 331958443X
Total Pages : 702 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Modeling and Design of Flexible Pavements and Materials by : Dallas N. Little

Download or read book Modeling and Design of Flexible Pavements and Materials written by Dallas N. Little and published by Springer. This book was released on 2017-09-25 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook lays out the state of the art for modeling of asphalt concrete as the major structural component of flexible pavements. The text adopts a pedagogy in which a scientific approach, based on materials science and continuum mechanics, predicts the performance of any configuration of flexible roadways subjected to cyclic loadings. The authors incorporate state-of the-art computational mechanics to predict the evolution of material properties, stresses and strains, and roadway deterioration. Designed specifically for both students and practitioners, the book presents fundamentally complex concepts in a clear and concise way that aids the roadway design community to assimilate the tools for designing sustainable roadways using both traditional and innovative technologies.

The Utilization of Slag in Civil Infrastructure Construction

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Publisher : Woodhead Publishing
ISBN 13 : 0081003978
Total Pages : 444 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis The Utilization of Slag in Civil Infrastructure Construction by : George C. Wang

Download or read book The Utilization of Slag in Civil Infrastructure Construction written by George C. Wang and published by Woodhead Publishing. This book was released on 2016-06-24 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Utilization of Slag in Civil Infrastructure Construction strives to integrate the theory, research, and practice of slag utilization, including the production and processing of slags. The topics covered include: production and smelting processes for metals; chemical and physical properties of slags; pretreatment and post-treatment technology to enhance slag properties; potential environmental impact; mechanisms of potential expansion; special testing methods and characteristics; slag processing for aggregate and cementitious applications; suitability of slags for use in specific applications; overall properties of materials containing slags; and commercialization and economics. The focus of the book is on slag utilization technology, with a review of the basic properties and an exploration of how its use in the end product will be technically sound, environment-friendly, and economic. - Covers the production, processing, and utilization of a broad range of ferrous, non-ferrous, and non-metallurgical slags - Provides information on applicable methods for a particular slag and its utilization to reduce potential environmental impacts and promote natural resource sustainability - Presents the overall technology of transferring a slag from the waste stream into a useful materials resource - Provides a detailed review of the appropriate utilization of each slag from processing right through to aggregate and cementitious use requirements

NCHRP Report 555

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis NCHRP Report 555 by :

Download or read book NCHRP Report 555 written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sustainable Construction Materials

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Publisher : Woodhead Publishing
ISBN 13 : 0081009917
Total Pages : 652 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Sustainable Construction Materials by : Ravindra K. Dhir OBE

Download or read book Sustainable Construction Materials written by Ravindra K. Dhir OBE and published by Woodhead Publishing. This book was released on 2019-01-05 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sustainable Construction Materials: Recycled Aggregate focuses on the massive systematic need that is necessary to encourage the uptake of recycled and secondary materials (RSM) in the construction industry. This book is the fifth and the last of the series on sustainable construction materials and like the previous four, it is also different to the norm. Its uniqueness lies in using the newly developed, Analytical Systemisation Method, in building the data-matrix sourced from 1413 publications, contributed by 2213 authors from 965 institutions in 67 countries, from 1977 to 2018, on the subject of recycled aggregate as a construction material, and systematically analysing, evaluating and modelling this information for use of the material as an aggregate concrete and mortar, geotechnics and road pavement applications. Environmental issues, case studies and standards are also discussed. The work establishes what is already known and can be used to further progress the use of sustainable construction materials. It can also help to avoid repetitive research and save valuable resources. The book is structured in an incisive and easy to digest manner and is particularly suited for researchers, academics, design engineers, specifiers, contractors, and government bodies dealing with construction works. - Provides an exhaustive and comprehensively organized list of globally-based published literature spanning 5000 references - Offers an analysis, evaluation, repackaging and modeling of existing knowledge that encourages more responsible use of waste materials - Provides a wealth of knowledge for use in many sectors relating to the construction profession, including academia, research, practice and adoption of RSM

Guide for Pavement Friction

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Publisher : AASHTO
ISBN 13 : 1560514280
Total Pages : 87 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis Guide for Pavement Friction by :

Download or read book Guide for Pavement Friction written by and published by AASHTO. This book was released on 2008 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report contains guidelines and recommendations for managing and designing for friction on highway pavements. The contents of this report will be of interest to highway materials, construction, pavement management, safety, design, and research engineers, as well as others concerned with the friction and related surface characteristics of highway pavements.

Engineering Geology for Society and Territory - Volume 5

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Publisher : Springer
ISBN 13 : 3319090488
Total Pages : 1304 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Engineering Geology for Society and Territory - Volume 5 by : Giorgio Lollino

Download or read book Engineering Geology for Society and Territory - Volume 5 written by Giorgio Lollino and published by Springer. This book was released on 2014-08-25 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is one out of 8 IAEG XII Congress volumes, and deals with the theme of urban geology. Along with a rapidly growing world population, the wave of urban growth continues, causing cities to swell and new metropolitan centers to emerge. These global trends also open new ventures for underground city development. Engineering geology plays a major role in facing the increasing issues of the urban environment, such as: finding aggregates for construction works; providing adequate water supply and waste management; solving building problems associated to geological and geomorphological conditions; evaluating host rock conditions for underground constructions; preventing or mitigating geological and seismic hazards. Furthermore, this book illustrates recent advancements in sustainable land use planning, which includes conservation, protection, reclamation and landscape impact of open pit mining and alternative power generation. The Engineering Geology for Society and Territory volumes of the IAEG XII Congress held in Torino from September 15-19, 2014, analyze the dynamic role of engineering geology in our changing world and build on the four main themes of the congress: environment, processes, issues and approaches. The congress topics and subject areas of the 8 IAEG XII Congress volumes are: 1. Climate Change and Engineering Geology 2. Landslide Processes River Basins 3. Reservoir Sedimentation and Water Resources 4. Marine and Coastal Processes Urban Geology 5. Sustainable Planning and Landscape Exploitation 6. Applied Geology for Major Engineering Projects 7. Education, Professional Ethics and Public Recognition of Engineering Geology 8. Preservation of Cultural Heritage

Theory and Technology of Rock Excavation for Civil Engineering

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Publisher : Springer
ISBN 13 : 9811019894
Total Pages : 710 pages
Book Rating : 4.8/5 (11 download)

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Book Synopsis Theory and Technology of Rock Excavation for Civil Engineering by : Dingxiang Zou

Download or read book Theory and Technology of Rock Excavation for Civil Engineering written by Dingxiang Zou and published by Springer. This book was released on 2016-11-21 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the technical advances in recent decades and the various theories on rock excavation raised by scholars from different countries, including China and Russia. It not only focuses on rock blasting but also illustrates a number of non-blasting methods, such as mechanical excavation in detail. The book consists of 3 parts: Basic Knowledge, Surface Excavation and Underground Excavation. It presents a variety of technical methods and data from diverse sources in the book, making it a valuable theoretical and practical reference resource for engineers, researchers and postgraduates alike.

Twentieth-Century Building Materials

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Publisher : Getty Publications
ISBN 13 : 1606063251
Total Pages : 354 pages
Book Rating : 4.6/5 (6 download)

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Book Synopsis Twentieth-Century Building Materials by : Thomas C. Jester

Download or read book Twentieth-Century Building Materials written by Thomas C. Jester and published by Getty Publications. This book was released on 2014-08-01 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the concluding decades of the twentieth century, the historic preservation community increasingly turned its attention to modern buildings, including bungalows from the 1930s, gas stations and diners from the 1940s, and office buildings and architectural homes from the 1950s. Conservation efforts, however, were often hampered by a lack of technical information about the products used in these structures, and to fill this gap Twentieth-Century Building Materials was developed by the U.S. Department of the Interior’s National Park Service and first published in 1995. Now, this invaluable guide is being reissued—with a new preface by the book’s original editor. With more than 250 illustrations, including a full-color photographic essay, the volume remains an indispensable reference on the history and conservation of modern building materials. Thirty-seven essays written by leading experts offer insights into the history, manufacturing processes, and uses of a wide range of materials, including glass block, aluminum, plywood, linoleum, and gypsum board. Readers will also learn about how these materials perform over time and discover valuable conservation and repair techniques. Bibliographies and sources for further research complete the volume. The book is intended for a wide range of conservation professionals including architects, engineers, conservators, and material scientists engaged in the conservation of modern buildings, as well as scholars in related disciplines.

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock

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Publisher : National Academies Press
ISBN 13 : 0309373727
Total Pages : 177 pages
Book Rating : 4.3/5 (93 download)

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Book Synopsis Characterization, Modeling, Monitoring, and Remediation of Fractured Rock by : National Academies of Sciences, Engineering, and Medicine

Download or read book Characterization, Modeling, Monitoring, and Remediation of Fractured Rock written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2021-01-29 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. Characterization, Modeling, Monitoring, and Remediation of Fractured Rock examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of Characterization, Modeling, Monitoring, and Remediation of Fractured Rock can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools-some only recently developed-can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.

Engineering Materials 2

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Publisher : Elsevier
ISBN 13 : 1483297217
Total Pages : 380 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Engineering Materials 2 by : Michael F. Ashby

Download or read book Engineering Materials 2 written by Michael F. Ashby and published by Elsevier. This book was released on 2014-06-28 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a thorough explanation of the basic properties of materials; of how these can be controlled by processing; of how materials are formed, joined and finished; and of the chain of reasoning that leads to a successful choice of material for a particular application. The materials covered are grouped into four classes: metals, ceramics, polymers and composites. Each class is studied in turn, identifying the families of materials in the class, the microstructural features, the processes or treatments used to obtain a particular structure and their design applications. The text is supplemented by practical case studies and example problems with answers, and a valuable programmed learning course on phase diagrams.

Design and Control of Concrete Mixtures

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Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.X/5 (6 download)

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Book Synopsis Design and Control of Concrete Mixtures by : Steven H. Kosmatka

Download or read book Design and Control of Concrete Mixtures written by Steven H. Kosmatka and published by . This book was released on 1988 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Portland Cement Association reference, dealing with fundamentals, cold weather concreting, curing, admixtures, aggregates, mixing, and much more.