Download or read book Determination of Clay Size Fraction of Marine Clays written by A. Sridharan and published by . This book was released on 1991 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: This technical note describes a study on the effect of different dispersing agents and the quantity of same on the grain-size distribution and in particular the percentage of clay size. The results confirm that the existing practice of using 100 mL of standard dispersing agent, viz. sodium hexametaphosphate and sodium carbonate solution, is suitable for marine clays also. The clay size fraction in a marine soil exists in the form of flocs, and hence a dispersing agent is imperative in determining the percentage of clay size fraction. This paper shows that the clay size fraction can vary significantly (4 to 45%) for the marine clays depending upon the dispersing agent used. It also brings out the importance of the need for using an initially moist sample for grain-size analysis in the case of marine clays. Initial air/oven drying before testing induces irreversible aggregation.
Download or read book Particle Size Analysis of Lime Treated Marine Clays written by G. Rajasekaran and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lime is commonly used to improve the engineering behavior of marine clay. But there is a need to investigate the lime-attributed changes in a particulate system in a marine environment. Lime columns 50 mm in diameter and 500 mm in length were installed in test tanks 600 mm in diameter at a depth of 550 mm, while lime injection was attempted in a test tank, 1000 by 1000 by 750 mm. The present investigation deals with experimental work carried out in the laboratory using lime column and lime injection techniques to stabilize an Indian marine clay in a salt water environment. Different inorganic additives were used with lime as column filler material to study the effect of lime-attributed changes occurring in the particle growth of soil systems. Grain-size distribution tests and SEM technique were carried out to study the lime-induced changes on the constituent particles. The test results indicate that there is an increase in the size of clay particles towards silt or fine sand fraction due to lime treatment. The formation of aggregates due to lime-soil reactions can be seen in the micrographs of different lime-treated soil systems, and the same has been confirmed using the SEM technique.
Download or read book Fundamentals of Ground Water written by Franklin W. Schwartz and published by John Wiley & Sons. This book was released on 2002-12-10 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Ground Water provides the reader with the fundamental principles of the hydraulic cycle. Also complete with illustrations and real-life case studies, this text takes a comprehensive and realistic approach to the subject of hydrology. It also contains strong interactive computer-based programs for solving and simulating hydraulics groundwater processes.
Download or read book Cohesive sedimentary systems Dynamics and deposits written by Andrew James Manning and published by Frontiers Media SA. This book was released on 2024-01-30 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Clay Science for Engineering written by K. Adachi and published by CRC Press. This book was released on 2001-01-11 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detailing the latest developments in the disciplines of geotechnical engineering, clay science and geochemistry concerned with the fundamental properties of clay liner and buffer materials.
Download or read book Coastal Geotechnical Engineering in Practice Volume 2 written by A. Nakase and published by Taylor & Francis. This book was released on 2002-01-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Symposium on "Coastal Geotechnical Engineering in Practice (IS-Yokohama 2000)" was held from 20 to 22 September 2000 in Yokohama, Japan and sponsored both by TC-30 of ISSMGE on "Coastal Geotechnical Engineering" and by the Japanese Geotechnical Society (JGS). This symposium attracted 310 participants from many countries and I
Download or read book Powder and Grains 2001 written by Y. Kishino and published by CRC Press. This book was released on 2020-12-17 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topics discussed in this text range from quasi-static problems to dynamic problems, and are divided into 15 groups, such as: cohesion/cracking; wave propagation; and quasi-static behaviour. Each group contains theoretical, experimental and computational approaches by researchers.
Download or read book Geochemical Facies Analysis written by Warner Ernst and published by Elsevier. This book was released on 2012-12-02 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Methods in Geochemistry and Geophysics 11: Geochemical Facies Analysis summarizes research regarding geochemical analysis of sedimentary facies. It demonstrates the extent to which geochemical criteria can be used to interpret sedimentary facies and considers the physicochemical criteria that affect the sediments deposited, including salinity, temperature, and redox potential. It also examines element or isotope variations in sedimentary rocks that are associated with variations in the depositional environment. Organized into seven chapters, this volume begins by defining the facies. It also presents the prerequisites of geochemical facies analysis. This includes the permanence of the composition of the oceans through long periods of the Earth's history, along with climatic, tectonic, and biological influences. The book then discusses methodological prerequisites for the determination of geochemical facies. It provides the results of geochemical facies analyses, including those for hydrofacies, lithofacies, and biofacies. In addition, it explains the non-chemical methods of facies analysis. The book concludes by looking at practical applications and future importance of geochemical facies analysis. This is an invaluable source book for students, geochemists, and geophysicists.
Download or read book Glacial and Post Glacial Quick Clays written by Paul F. Kerr and published by . This book was released on 1963 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biogeochemistry of Trace Elements in the Rhizosphere written by G.R. Gobran and published by Elsevier. This book was released on 2011-08-11 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rhizosphere in soil environments refers to the narrow zone of soil influenced by the root and exudates. Microbial populations in the rhizosphere can be 10 - 100 times larger than the populations in the bulk soil. Therefore, the rhizosphere is bathed in root exudates and microbial metabolites and the chemistry and biology at the soil-root interface is governed by biotic (plant roots, microbes) and abiotic (physical and chemical) interactions. The research on biotic and abiotic interactions in the rhizosphere should, thus, be an issue of intense interest for years to come. This book, which consists of 15 chapters, addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem. It is an essential reference work for chemists and biologists studying environmental systems, as well as earth, soil and environmental scientists.* 15 chapter book, which addresses a variety of issues on fundamentals of microscopic levels and the impact on food chain contamination and the terrestrial ecosystem
Download or read book Green Marine Clays written by G.S. Odin and published by Elsevier. This book was released on 1988-11-01 with total page 471 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Marine Clays provides a comparative study of four authigenic marine clays: the well-known glaucony marine facies; the newly-identified sedimentary facies - verdine; the old oolitic ironstone facies; and the celadonite-bearing facies.The book demonstrates that the sea bottom plays host to a variety of clay minerals specific to the marine environment: ferric di-trioctahedral ``serpentine'', ferric chlorite, ferric smectite, ferric mica, ferric ``swelling chlorite'', all widespread in present oceans and all fundamentally formed by crystal growth and recrystallization processes in semi-confined marine microenvironments.A unique feature of the book is the inclusion of the first detailed study of the verdine facies characterized by a variety of authigenic green clays, some of which are new clay mineral species widespread in all tropical oceans. The celadonite-bearing facies has been studied intensively in the last few years and new results are obtained from deep sea samples and from land outcrops. The current knowledge is synthesized and reviewed in comparison with the glaucony facies. A new approach is adopted in the description of the old oolitic ironstone facies in which a comparison is made with the recent verdine facies.The material is abundantly illustrated throughout by 133 figures and 59 tables; 36 of the figures consist of plates showing 170 selected pictures obtained at different scales of observation including the field, binocular microscope, thin sections, transmission electron miscroscopy, scanning electron microscopy, high resolution transmission electron microscopy, X-ray diffraction. A subject index completes the book.The information presented here will help geologists construct a clearer picture of environmental and depositional history of rocks. It will appeal to sedimentologists interested in the processes by which, and the environment in which, clay minerals form. Clay mineralogists will find much useful information on a variety of iron rich minerals, and geochemists interested in the iron in the sea and those working with sedimentary iron ores will also benefit from the book.
Download or read book Environmental Soil Chemistry written by Donald L. Sparks and published by Elsevier. This book was released on 2013-10-22 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the author states in his Preface, this book is written at a time when scientific and lay communities recognize that knowledge of environmental chemistry is fundamental in understanding and predicting the fate of pollutants in soils and waters, and in making sound decisions about remediation of contaminated soils. Environmental Soil Chemistry presents the fundamental concepts of soil science and applies them to environmentally significant reactions in soil. Clearly and concisely written for undergraduate and beginning graduate students of soil science, the book is likewise accessible to all students and professionals of environmental engineering and science. Chapters cover background information useful to students new to the discipline, including the chemistry of inorganic and organic soil components, soilacidity and salinity, and ion exchange and redox phenomena. However, discussion also extends to sorption/desorption, oxidation-reduction of metals and organic chemicals, rates of pollutant reactions as well as technologies for remediating contaminated soils. Supplementary reading lists, sample problems, and extensive tables and figures make this textbook accessible to readers. Provides students with both sound contemporary training in the basics of soil chemistry and applications to real-world environmental concerns Timely and comprehensive discussion of important concepts including: Sorption/desorption, Oxidation-reduction of metals and organics, Effects of acidic deposition and salinity on contaminant reactions Boxed sections focus on sample problems and explanations of key terms and parameters Extensive tables on elemental composition of soils, rocks and sediments, pesticide classes, inorganic minerals, and methods of decontaminating soils Clearly written for all students and professionals in environmental science and environmental engineering as well as soil science
Download or read book State of the art of Marine Soil Mechanics and Foundation Engineering written by U.S. Army Engineer Waterways Experiment Station and published by . This book was released on 1972 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Science of Clays written by Swapna Mukherjee and published by Springer Science & Business Media. This book was released on 2013-10-09 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an attempt to provide a comprehensive and coherent description of three widely separated aspects of clays: the science of clays; the industrial uses of clays; and the role of clays in the environment. Most of the existing literature lacks such an integrated study and this work endeavours to fill that gap. An exhaustive account of the science of clays is presented in Part I of the book, which includes the classification, origin and evolution, composition and internal structure, chemical and physical properties of clays; soil mechanics; and analytical techniques for determining clay constituents. Part II provides a comprehensive description of the applications of clays and their derivatives in various industries, while Part III describes the role of clays in the environment; the pollution caused by clay minerals; and the application of clays in order to prevent environmental hazards. A principal feature of the book is its explanation of how the structure and composition of particular clay types facilitate their specific industrial or environmental applications, thus describing the interrelationship between three widely varying aspects of clay. A number of thought-provoking questions are raised at the end of the work in order to leave readers with a better insight in this regard.
Download or read book Environmental Framework of Coastal Plain Estuaries written by Bruce Warren Nelson and published by Geological Society of America. This book was released on 1973 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Correlations of Soil and Rock Properties in Geotechnical Engineering written by Jay Ameratunga and published by Springer. This book was released on 2015-12-11 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a one-stop reference to the empirical correlations used extensively in geotechnical engineering. Empirical correlations play a key role in geotechnical engineering designs and analysis. Laboratory and in situ testing of soils can add significant cost to a civil engineering project. By using appropriate empirical correlations, it is possible to derive many design parameters, thus limiting our reliance on these soil tests. The authors have decades of experience in geotechnical engineering, as professional engineers or researchers. The objective of this book is to present a critical evaluation of a wide range of empirical correlations reported in the literature, along with typical values of soil parameters, in the light of their experience and knowledge. This book will be a one-stop-shop for the practising professionals, geotechnical researchers and academics looking for specific correlations for estimating certain geotechnical parameters. The empirical correlations in the forms of equations and charts and typical values are collated from extensive literature review, and from the authors' database.
Download or read book Quantitative Mineral Analysis of Clays written by C. S. Calvert and published by . This book was released on 1989 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles and techniques of quantitative analysis of clay minerals by X-ray Powder Diffraction; A computer program for semiquantitative mineral analysis by x-ray powder diffraction; A computer technique for x-ray diffraction curve fitting/peak decomposition; Quantitative mineral analysis by x-ray transmission and x-ray diffraction; Quantitatice determination of clays and other minerals in rocks; A combined x-ray Powder diffraction ans chemical method for the quantitative mineral analysis of geologic samples.
